INFO: rcu detected stall in kthread

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: e23d55af0e1f Linux 4.19.205
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=17e3766d300000
kernel config: https://syzkaller.appspot.com/x/.config?x=2221dd564152b412
dashboard link: https://syzkaller.appspot.com/bug?extid=9f22ee2d7888eac8f8a1
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)

Unfortunately, I don't have any reproducer for this issue yet.

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+9f22ee...@syzkaller.appspotmail.com

CPU: 0 PID: 7784 Comm: cron Not tainted 4.19.205-syzkaller #0
rcu: INFO: rcu_preempt self-detected stall on CPU
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
rcu: 1-...!: (245 ticks this GP) idle=88e/1/0x4000000000000004 softirq=212844/212847 fqs=0
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
__alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
__alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
__alloc_pages include/linux/gfp.h:496 [inline]
__alloc_pages_node include/linux/gfp.h:509 [inline]
kmem_getpages mm/slab.c:1412 [inline]
cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
fallback_alloc+0x213/0x2e0 mm/slab.c:3224
slab_alloc_node mm/slab.c:3332 [inline]
kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
__alloc_skb+0x71/0x560 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
rcu: (t=10603 jiffies g=245249 q=2)
rcu: rcu_preempt kthread starved for 10603 jiffies! g245249 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
rcu: RCU grace-period kthread stack dump:
rcu_preempt R running task 29208 10 2 0x80000000
Call Trace:
context_switch kernel/sched/core.c:2828 [inline]
__schedule+0x887/0x2040 kernel/sched/core.c:3517
schedule+0x8d/0x1b0 kernel/sched/core.c:3561
expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
schedule_timeout+0x4cf/0xfe0 kernel/time/timer.c:1818
__run_timers kernel/time/timer.c:1696 [inline]
run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
__do_softirq+0x265/0x980 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x215/0x260 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
rcu_gp_kthread+0xdad/0x21c0 kernel/rcu/tree.c:2202
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:debug_lockdep_rcu_enabled+0x50/0xe0 kernel/rcu/update.c:253
Code: 08 84 d2 0f 85 87 00 00 00 8b 35 7f 30 d6 09 85 f6 74 79 48 c7 c0 a0 f1 45 8a 48 ba 00 00 00 00 00 fc ff df 48 89 c1 83 e0 07 <48> c1 e9 03 83 c0 03 0f b6 14 11 38 d0 7c 04 84 d2 75 64 8b 0d e7
RSP: 0000:ffff8880a9617408 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffff8880981d9140 RCX: ffffffff8a45f1a0
RDX: dffffc0000000000 RSI: 0000000000000002 RDI: 0000000000000286
RBP: ffff8880b59f68c0 R08: 000000009f34173b R09: 0000000000000004
R10: ffff8880a97cef28 R11: 0000000000000000 R12: ffff88809aa28e00
R13: ffff8880a9617560 R14: ffff8880a9617564 R15: ffff8880a9617578
kthread+0x33f/0x460 kernel/kthread.c:259
rcu_read_lock include/linux/rcupdate.h:628 [inline]
list_lru_count_one+0x66/0x360 mm/list_lru.c:189
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
list_lru_shrink_count include/linux/list_lru.h:123 [inline]
super_cache_count+0x14f/0x2e0 fs/super.c:144
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7784 Comm: cron Not tainted 4.19.205-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:vsnprintf+0x178/0x14f0 lib/vsprintf.c:2275
Code: 89 ef e8 5b 68 ff ff 44 0f b6 44 24 68 48 c7 c6 20 5a 71 89 48 98 48 89 44 24 10 4c 8d 6c 05 00 4d 89 c6 4c 89 c7 4c 89 04 24 <e8> 83 18 72 f9 41 80 fe 07 4c 8b 04 24 0f 87 08 07 00 00 42 ff 24
RSP: 0000:ffff8880ba0071f0 EFLAGS: 00000086
RAX: 0000000000000005 RBX: dffffc0000000000 RCX: ffffffff87efe822
RDX: 0000000000000100 RSI: ffffffff89715a20 RDI: 0000000000000009
RBP: ffffffff886ad5c6 R08: 0000000000000009 R09: 000000000000006c
R10: 0000000000000001 R11: ffffffff8c66401b R12: ffffffff8d201327
R13: ffffffff886ad5cb R14: 0000000000000009 R15: ffff8880ba0072f0
FS: 00007f730c0ba840(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f730b784246 CR3: 00000000981df000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
sprintf+0xc0/0x100 lib/vsprintf.c:2521
print_time kernel/printk/printk.c:1264 [inline]
print_prefix+0x265/0x3f0 kernel/printk/printk.c:1287
msg_print_text+0xcd/0x1c0 kernel/printk/printk.c:1314
console_unlock+0x321/0x1110 kernel/printk/printk.c:2434
vprintk_emit+0x2d1/0x740 kernel/printk/printk.c:1965
vprintk_func+0x79/0x180 kernel/printk/printk_safe.c:405
printk+0xba/0xed kernel/printk/printk.c:2040
printk_stack_address arch/x86/kernel/dumpstack.c:71 [inline]
show_trace_log_lvl+0x21e/0x2b4 arch/x86/kernel/dumpstack.c:258
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
__alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
__alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
__alloc_pages include/linux/gfp.h:496 [inline]
__alloc_pages_node include/linux/gfp.h:509 [inline]
kmem_getpages mm/slab.c:1412 [inline]
cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
fallback_alloc+0x213/0x2e0 mm/slab.c:3224
slab_alloc_node mm/slab.c:3332 [inline]
kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
__alloc_skb+0x71/0x560 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
__run_timers kernel/time/timer.c:1696 [inline]
run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
__do_softirq+0x265/0x980 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x215/0x260 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:debug_lockdep_rcu_enabled+0x50/0xe0 kernel/rcu/update.c:253
Code: 08 84 d2 0f 85 87 00 00 00 8b 35 7f 30 d6 09 85 f6 74 79 48 c7 c0 a0 f1 45 8a 48 ba 00 00 00 00 00 fc ff df 48 89 c1 83 e0 07 <48> c1 e9 03 83 c0 03 0f b6 14 11 38 d0 7c 04 84 d2 75 64 8b 0d e7
RSP: 0000:ffff8880a9617408 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffff8880981d9140 RCX: ffffffff8a45f1a0
RDX: dffffc0000000000 RSI: 0000000000000002 RDI: 0000000000000286
RBP: ffff8880b59f68c0 R08: 000000009f34173b R09: 0000000000000004
R10: ffff8880a97cef28 R11: 0000000000000000 R12: ffff88809aa28e00
R13: ffff8880a9617560 R14: ffff8880a9617564 R15: ffff8880a9617578
rcu_read_lock include/linux/rcupdate.h:628 [inline]
list_lru_count_one+0x66/0x360 mm/list_lru.c:189
list_lru_shrink_count include/linux/list_lru.h:123 [inline]
super_cache_count+0x14f/0x2e0 fs/super.c:144
do_shrink_slab+0x10b/0xa40 mm/vmscan.c:464
shrink_slab+0x16f/0x550 mm/vmscan.c:693
shrink_node.isra.0+0x2d3/0x1300 mm/vmscan.c:2748
shrink_zones mm/vmscan.c:2977 [inline]
do_try_to_free_pages+0x38e/0xfe0 mm/vmscan.c:3035
try_to_free_pages+0x27f/0x7c0 mm/vmscan.c:3251
__perform_reclaim mm/page_alloc.c:3800 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3821 [inline]
__alloc_pages_slowpath mm/page_alloc.c:4211 [inline]
__alloc_pages_nodemask+0xcc8/0x2890 mm/page_alloc.c:4419
alloc_pages_current+0x193/0x2a0 mm/mempolicy.c:2197
alloc_pages include/linux/gfp.h:532 [inline]
__page_cache_alloc mm/filemap.c:969 [inline]
page_cache_read mm/filemap.c:2408 [inline]
filemap_fault+0x146e/0x2180 mm/filemap.c:2592
ext4_filemap_fault+0x84/0xb0 fs/ext4/inode.c:6379
__do_fault+0x10b/0x4b0 mm/memory.c:3403
do_read_fault mm/memory.c:3815 [inline]
do_fault mm/memory.c:3944 [inline]
handle_pte_fault mm/memory.c:4175 [inline]
__handle_mm_fault+0x273b/0x41c0 mm/memory.c:4299
handle_mm_fault+0x436/0xb10 mm/memory.c:4336
__do_page_fault+0x68e/0xd60 arch/x86/mm/fault.c:1412
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205
RIP: 0033:0x7f730b784270
Code: Bad RIP value.
RSP: 002b:00007ffe17ec5338 EFLAGS: 00010246
RAX: 0000000000000000 RBX: fffffffffffffeb0 RCX: 00007f730b784270
RDX: 0000000000000080 RSI: 00007ffe17ec5340 RDI: 00007ffe17ec5340
RBP: 0000000000000002 R08: 0000000000000004 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe17ec5490 R14: 0000000000000000 R15: 0000000000000000
NMI backtrace for cpu 1
do_shrink_slab+0x10b/0xa40 mm/vmscan.c:464
shrink_slab+0x16f/0x550 mm/vmscan.c:693
shrink_node.isra.0+0x2d3/0x1300 mm/vmscan.c:2748
shrink_zones mm/vmscan.c:2977 [inline]
do_try_to_free_pages+0x38e/0xfe0 mm/vmscan.c:3035
try_to_free_pages+0x27f/0x7c0 mm/vmscan.c:3251
__perform_reclaim mm/page_alloc.c:3800 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3821 [inline]
__alloc_pages_slowpath mm/page_alloc.c:4211 [inline]
__alloc_pages_nodemask+0xcc8/0x2890 mm/page_alloc.c:4419
alloc_pages_current+0x193/0x2a0 mm/mempolicy.c:2197
alloc_pages include/linux/gfp.h:532 [inline]
__page_cache_alloc mm/filemap.c:969 [inline]
page_cache_read mm/filemap.c:2408 [inline]
filemap_fault+0x146e/0x2180 mm/filemap.c:2592
ext4_filemap_fault+0x84/0xb0 fs/ext4/inode.c:6379
__do_fault+0x10b/0x4b0 mm/memory.c:3403
do_read_fault mm/memory.c:3815 [inline]
do_fault mm/memory.c:3944 [inline]
handle_pte_fault mm/memory.c:4175 [inline]
__handle_mm_fault+0x273b/0x41c0 mm/memory.c:4299
handle_mm_fault+0x436/0xb10 mm/memory.c:4336
__do_page_fault+0x68e/0xd60 arch/x86/mm/fault.c:1412
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205
RIP: 0033:0x7f730b784270
Code: Bad RIP value.
RSP: 002b:00007ffe17ec5338 EFLAGS: 00010246
RAX: 0000000000000000 RBX: fffffffffffffeb0 RCX: 00007f730b784270
RDX: 0000000000000080 RSI: 00007ffe17ec5340 RDI: 00007ffe17ec5340
RBP: 0000000000000002 R08: 0000000000000004 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe17ec5490 R14: 0000000000000000 R15: 0000000000000000
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 22321 Comm: syz-executor.5 Not tainted 4.19.205-syzkaller #0
Mem-Info:
active_anon:294658 inactive_anon:8982 isolated_anon:0
active_file:14 inactive_file:11 isolated_file:0
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:17985 slab_unreclaimable:1257889
mapped:57624 shmem:9199 pagetables:24092 bounce:0
free:11095 free_pcp:202 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:1157748kB inactive_anon:35928kB active_file:44kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:230496kB dirty:0kB writeback:0kB shmem:36792kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 423936kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 1 active_anon:20884kB inactive_anon:0kB active_file:12kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:4kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
<IRQ>
Node 0 DMA free:10852kB min:204kB low:252kB high:300kB active_anon:4136kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:32kB pagetables:20kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
lowmem_reserve[]: 0 2693 2695 2695 2695
nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101
Node 0 DMA32 free:13480kB min:35996kB low:44992kB high:53988kB active_anon:1153612kB inactive_anon:35928kB active_file:44kB inactive_file:52kB unevictable:0kB writepending:0kB present:3129332kB managed:2763456kB mlocked:0kB kernel_stack:28096kB pagetables:77116kB bounce:0kB free_pcp:328kB local_pcp:296kB free_cma:0kB
lowmem_reserve[]: 0 0 1 1 1
nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62
Node 0 Normal free:0kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x15f/0x19c kernel/rcu/tree.c:1340
lowmem_reserve[]: 0 0 0 0 0
print_cpu_stall kernel/rcu/tree.c:1478 [inline]
check_cpu_stall kernel/rcu/tree.c:1550 [inline]
__rcu_pending kernel/rcu/tree.c:3293 [inline]
rcu_pending kernel/rcu/tree.c:3336 [inline]
rcu_check_callbacks.cold+0x62d/0xe19 kernel/rcu/tree.c:2682
Node 1 Normal free:20048kB min:53876kB low:67344kB high:80812kB active_anon:20884kB inactive_anon:0kB active_file:12kB inactive_file:0kB unevictable:0kB writepending:0kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:7872kB pagetables:19232kB bounce:0kB free_pcp:480kB local_pcp:232kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 5*4kB (ME) 2*8kB (ME) 4*16kB (UME) 2*32kB (ME) 1*64kB (E) 3*128kB (UME) 2*256kB (ME) 3*512kB (UME) 2*1024kB (ME) 1*2048kB (E) 1*4096kB (M) = 10852kB
update_process_times+0x2a/0x70 kernel/time/timer.c:1650
Node 0 DMA32: 1908*4kB (UMEH) 447*8kB (UMEH) 112*16kB (UMEH) 15*32kB (UH) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13480kB
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:168
Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB
tick_sched_timer+0xfc/0x290 kernel/time/tick-sched.c:1278
Node 1 Normal: 356*4kB (UM) 72*8kB (ME) 16*16kB (M) 8*32kB (UME) 2*64kB (UE) 0*128kB 2*256kB (UM) 3*512kB (UME) 1*1024kB (U) 1*2048kB (U) 3*4096kB (M) = 20048kB
__run_hrtimer kernel/time/hrtimer.c:1419 [inline]
__hrtimer_run_queues+0x3f6/0xe60 kernel/time/hrtimer.c:1481
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
9224 total pagecache pages
hrtimer_interrupt+0x326/0x9e0 kernel/time/hrtimer.c:1539
0 pages in swap cache
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1071 [inline]
smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1096
Swap cache stats: add 0, delete 0, find 0/0
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
Free swap = 0kB
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:slab_alloc_node mm/slab.c:3334 [inline]
RIP: 0010:kmem_cache_alloc_node+0x2ee/0x3b0 mm/slab.c:3647
Total swap = 0kB
Code: fe ff ff 48 f7 04 24 00 02 00 00 0f 84 1f fe ff ff e8 e6 a6 cf ff 48 83 3d 16 73 59 08 00 0f 84 aa 00 00 00 48 8b 3c 24 57 9d <0f> 1f 44 00 00 e9 1a fe ff ff 65 ff 05 81 cf 69 7e 48 8b 05 b2 e8
2097051 pages RAM
RSP: 0000:ffff8880ba107bb0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
0 pages HighMem/MovableOnly
RAX: 0000000000000007 RBX: 0000000000480020 RCX: 1ffff11012181dc2
369648 pages reserved
0 pages cma reserved
RDX: 0000000000000000 RSI: ffff888090c0ee18 RDI: 0000000000000286
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
RBP: ffff88823b33a540 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffff
cron: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
R13: 0000000000000000 R14: 0000000000480020 R15: ffff88823b33a540
cron cpuset=/ mems_allowed=0-1
__alloc_skb+0x71/0x560 net/core/skbuff.c:193
__netdev_alloc_skb+0x76/0x460 net/core/skbuff.c:407
netdev_alloc_skb include/linux/skbuff.h:2680 [inline]
dev_alloc_skb include/linux/skbuff.h:2693 [inline]
send_hsr_supervision_frame+0x107/0xf70 net/hsr/hsr_device.c:265
hsr_announce+0x125/0x3a0 net/hsr/hsr_device.c:350
call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
__run_timers kernel/time/timer.c:1696 [inline]
run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
__do_softirq+0x265/0x980 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x215/0x260 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:slab_alloc mm/slab.c:3390 [inline]
RIP: 0010:kmem_cache_alloc+0x2c4/0x370 mm/slab.c:3557
Code: 00 48 c7 c7 ab 65 b8 89 e8 59 68 a9 ff e9 b5 fd ff ff e8 4f 9b cf ff 48 83 3d 7f 67 59 08 00 0f 84 ae 00 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 1c fe ff ff 65 ff 05 eb c3 69 7e 48 8b 05 9c dd
RSP: 0000:ffff88802e69f810 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000007 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff888090c0edc8 RDI: 0000000000000286
RBP: 0000000000480020 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88823b33a540 R14: ffff88823b33a540 R15: 0000000000000286
skb_clone+0x151/0x3d0 net/core/skbuff.c:1293
____bpf_clone_redirect net/core/filter.c:2079 [inline]
bpf_clone_redirect+0xaf/0x430 net/core/filter.c:2066
___bpf_prog_run+0x1c20/0x50b0 kernel/bpf/core.c:1184
CPU: 0 PID: 7784 Comm: cron Not tainted 4.19.205-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
syz-executor.5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
Call Trace:
syz-executor.5 cpuset=/ mems_allowed=0-1
<IRQ>
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
__alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
__alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
__alloc_pages include/linux/gfp.h:496 [inline]
__alloc_pages_node include/linux/gfp.h:509 [inline]
kmem_getpages mm/slab.c:1412 [inline]
cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
fallback_alloc+0x213/0x2e0 mm/slab.c:3224
slab_alloc_node mm/slab.c:3332 [inline]
kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
__alloc_skb+0x71/0x560 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
__run_timers kernel/time/timer.c:1696 [inline]
run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
__do_softirq+0x265/0x980 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x215/0x260 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:debug_lockdep_rcu_enabled+0x50/0xe0 kernel/rcu/update.c:253
Code: 08 84 d2 0f 85 87 00 00 00 8b 35 7f 30 d6 09 85 f6 74 79 48 c7 c0 a0 f1 45 8a 48 ba 00 00 00 00 00 fc ff df 48 89 c1 83 e0 07 <48> c1 e9 03 83 c0 03 0f b6 14 11 38 d0 7c 04 84 d2 75 64 8b 0d e7
RSP: 0000:ffff8880a9617408 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffff8880981d9140 RCX: ffffffff8a45f1a0
RDX: dffffc0000000000 RSI: 0000000000000002 RDI: 0000000000000286
RBP: ffff8880b59f68c0 R08: 000000009f34173b R09: 0000000000000004
R10: ffff8880a97cef28 R11: 0000000000000000 R12: ffff88809aa28e00
R13: ffff8880a9617560 R14: ffff8880a9617564 R15: ffff8880a9617578
rcu_read_lock include/linux/rcupdate.h:628 [inline]
list_lru_count_one+0x66/0x360 mm/list_lru.c:189
list_lru_shrink_count include/linux/list_lru.h:123 [inline]
super_cache_count+0x14f/0x2e0 fs/super.c:144
do_shrink_slab+0x10b/0xa40 mm/vmscan.c:464
shrink_slab+0x16f/0x550 mm/vmscan.c:693
shrink_node.isra.0+0x2d3/0x1300 mm/vmscan.c:2748
shrink_zones mm/vmscan.c:2977 [inline]
do_try_to_free_pages+0x38e/0xfe0 mm/vmscan.c:3035
try_to_free_pages+0x27f/0x7c0 mm/vmscan.c:3251
__perform_reclaim mm/page_alloc.c:3800 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3821 [inline]
__alloc_pages_slowpath mm/page_alloc.c:4211 [inline]
__alloc_pages_nodemask+0xcc8/0x2890 mm/page_alloc.c:4419
alloc_pages_current+0x193/0x2a0 mm/mempolicy.c:2197
alloc_pages include/linux/gfp.h:532 [inline]
__page_cache_alloc mm/filemap.c:969 [inline]
page_cache_read mm/filemap.c:2408 [inline]
filemap_fault+0x146e/0x2180 mm/filemap.c:2592
ext4_filemap_fault+0x84/0xb0 fs/ext4/inode.c:6379
__do_fault+0x10b/0x4b0 mm/memory.c:3403
do_read_fault mm/memory.c:3815 [inline]
do_fault mm/memory.c:3944 [inline]
handle_pte_fault mm/memory.c:4175 [inline]
__handle_mm_fault+0x273b/0x41c0 mm/memory.c:4299
handle_mm_fault+0x436/0xb10 mm/memory.c:4336
__do_page_fault+0x68e/0xd60 arch/x86/mm/fault.c:1412
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205
RIP: 0033:0x7f730b784270
Code: Bad RIP value.
RSP: 002b:00007ffe17ec5338 EFLAGS: 00010246
RAX: 0000000000000000 RBX: fffffffffffffeb0 RCX: 00007f730b784270
RDX: 0000000000000080 RSI: 00007ffe17ec5340 RDI: 00007ffe17ec5340
RBP: 0000000000000002 R08: 0000000000000004 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe17ec5490 R14: 0000000000000000 R15: 0000000000000000
Mem-Info:
CPU: 1 PID: 22321 Comm: syz-executor.5 Not tainted 4.19.205-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
active_anon:294658 inactive_anon:8982 isolated_anon:0
active_file:14 inactive_file:11 isolated_file:0
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:17985 slab_unreclaimable:1257889
mapped:57624 shmem:9199 pagetables:24092 bounce:0
free:11095 free_pcp:202 free_cma:0
Call Trace:
Node 0 active_anon:1157748kB inactive_anon:35928kB active_file:44kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:230496kB dirty:0kB writeback:0kB shmem:36792kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 423936kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
<IRQ>
Node 1 active_anon:20884kB inactive_anon:0kB active_file:12kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:4kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
Node 0 DMA free:10852kB min:204kB low:252kB high:300kB active_anon:4136kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:32kB pagetables:20kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
lowmem_reserve[]: 0 2693 2695 2695 2695
Node 0 DMA32 free:13480kB min:35996kB low:44992kB high:53988kB active_anon:1153612kB inactive_anon:35928kB active_file:44kB inactive_file:52kB unevictable:0kB writepending:0kB present:3129332kB managed:2763456kB mlocked:0kB kernel_stack:28096kB pagetables:77116kB bounce:0kB free_pcp:328kB local_pcp:296kB free_cma:0kB
lowmem_reserve[]: 0 0 1 1 1
Node 0 Normal free:0kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:20048kB min:53876kB low:67344kB high:80812kB active_anon:20884kB inactive_anon:0kB active_file:12kB inactive_file:0kB unevictable:0kB writepending:0kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:7872kB pagetables:19232kB bounce:0kB free_pcp:480kB local_pcp:232kB free_cma:0kB
__alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
__alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 5*4kB (ME) 2*8kB (ME) 4*16kB (UME) 2*32kB (ME) 1*64kB (E) 3*128kB (UME) 2*256kB (ME) 3*512kB (UME) 2*1024kB (ME) 1*2048kB (E) 1*4096kB (M) = 10852kB
Node 0 DMA32: 1908*4kB (UMEH) 447*8kB (UMEH) 112*16kB (UMEH) 15*32kB (UH) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13480kB
Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB
Node 1 Normal: 356*4kB (UM) 72*8kB (ME) 16*16kB (M) 8*32kB (UME) 2*64kB (UE) 0*128kB 2*256kB (UM) 3*512kB (UME) 1*1024kB (U) 1*2048kB (U) 3*4096kB (M) = 20048kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
__alloc_pages include/linux/gfp.h:496 [inline]
__alloc_pages_node include/linux/gfp.h:509 [inline]
kmem_getpages mm/slab.c:1412 [inline]
cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
fallback_alloc+0x213/0x2e0 mm/slab.c:3224
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
slab_alloc_node mm/slab.c:3332 [inline]
kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
9224 total pagecache pages
__alloc_skb+0x71/0x560 net/core/skbuff.c:193
0 pages in swap cache
__netdev_alloc_skb+0x76/0x460 net/core/skbuff.c:407
Swap cache stats: add 0, delete 0, find 0/0
netdev_alloc_skb include/linux/skbuff.h:2680 [inline]
dev_alloc_skb include/linux/skbuff.h:2693 [inline]
send_hsr_supervision_frame+0x107/0xf70 net/hsr/hsr_device.c:265
Free swap = 0kB
Total swap = 0kB
2097051 pages RAM
0 pages HighMem/MovableOnly
hsr_announce+0x125/0x3a0 net/hsr/hsr_device.c:350
369648 pages reserved
call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
cron: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
cron cpuset=/ mems_allowed=0-1
expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
__run_timers kernel/time/timer.c:1696 [inline]
run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
__do_softirq+0x265/0x980 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x215/0x260 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:slab_alloc mm/slab.c:3390 [inline]
RIP: 0010:kmem_cache_alloc+0x2c4/0x370 mm/slab.c:3557
Code: 00 48 c7 c7 ab 65 b8 89 e8 59 68 a9 ff e9 b5 fd ff ff e8 4f 9b cf ff 48 83 3d 7f 67 59 08 00 0f 84 ae 00 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 1c fe ff ff 65 ff 05 eb c3 69 7e 48 8b 05 9c dd
RSP: 0000:ffff88802e69f810 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000007 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff888090c0edc8 RDI: 0000000000000286
RBP: 0000000000480020 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88823b33a540 R14: ffff88823b33a540 R15: 0000000000000286
skb_clone+0x151/0x3d0 net/core/skbuff.c:1293
____bpf_clone_redirect net/core/filter.c:2079 [inline]
bpf_clone_redirect+0xaf/0x430 net/core/filter.c:2066
___bpf_prog_run+0x1c20/0x50b0 kernel/bpf/core.c:1184
CPU: 0 PID: 7784 Comm: cron Not tainted 4.19.205-syzkaller #0
syz-executor.5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
syz-executor.5 cpuset=/ mems_allowed=0-1
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
__alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
__alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
__alloc_pages include/linux/gfp.h:496 [inline]
__alloc_pages_node include/linux/gfp.h:509 [inline]
kmem_getpages mm/slab.c:1412 [inline]
cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
fallback_alloc+0x213/0x2e0 mm/slab.c:3224
slab_alloc_node mm/slab.c:3332 [inline]
kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
__alloc_skb+0x71/0x560 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
__run_timers kernel/time/timer.c:1696 [inline]
run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
__do_softirq+0x265/0x980 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x215/0x260 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:debug_lockdep_rcu_enabled+0x50/0xe0 kernel/rcu/update.c:253
Code: 08 84 d2 0f 85 87 00 00 00 8b 35 7f 30 d6 09 85 f6 74 79 48 c7 c0 a0 f1 45 8a 48 ba 00 00 00 00 00 fc ff df 48 89 c1 83 e0 07 <48> c1 e9 03 83 c0 03 0f b6 14 11 38 d0 7c 04 84 d2 75 64 8b 0d e7
RSP: 0000:ffff8880a9617408 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffff8880981d9140 RCX: ffffffff8a45f1a0
RDX: dffffc0000000000 RSI: 0000000000000002 RDI: 0000000000000286
RBP: ffff8880b59f68c0 R08: 000000009f34173b R09: 0000000000000004
R10: ffff8880a97cef28 R11: 0000000000000000 R12: ffff88809aa28e00
R13: ffff8880a9617560 R14: ffff8880a9617564 R15: ffff8880a9617578
rcu_read_lock include/linux/rcupdate.h:628 [inline]
list_lru_count_one+0x66/0x360 mm/list_lru.c:189
list_lru_shrink_count include/linux/list_lru.h:123 [inline]
super_cache_count+0x14f/0x2e0 fs/super.c:144
do_shrink_slab+0x10b/0xa40 mm/vmscan.c:464
shrink_slab+0x16f/0x550 mm/vmscan.c:693
shrink_node.isra.0+0x2d3/0x1300 mm/vmscan.c:2748
shrink_zones mm/vmscan.c:2977 [inline]
do_try_to_free_pages+0x38e/0xfe0 mm/vmscan.c:3035
try_to_free_pages+0x27f/0x7c0 mm/vmscan.c:3251
__perform_reclaim mm/page_alloc.c:3800 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3821 [inline]
__alloc_pages_slowpath mm/page_alloc.c:4211 [inline]
__alloc_pages_nodemask+0xcc8/0x2890 mm/page_alloc.c:4419
alloc_pages_current+0x193/0x2a0 mm/mempolicy.c:2197
alloc_pages include/linux/gfp.h:532 [inline]
__page_cache_alloc mm/filemap.c:969 [inline]
page_cache_read mm/filemap.c:2408 [inline]
filemap_fault+0x146e/0x2180 mm/filemap.c:2592
ext4_filemap_fault+0x84/0xb0 fs/ext4/inode.c:6379
__do_fault+0x10b/0x4b0 mm/memory.c:3403
do_read_fault mm/memory.c:3815 [inline]
do_fault mm/memory.c:3944 [inline]
handle_pte_fault mm/memory.c:4175 [inline]
__handle_mm_fault+0x273b/0x41c0 mm/memory.c:4299
handle_mm_fault+0x436/0xb10 mm/memory.c:4336
__do_page_fault+0x68e/0xd60 arch/x86/mm/fault.c:1412
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205
RIP: 0033:0x7f730b784270
Code: Bad RIP value.
RSP: 002b:00007ffe17ec5338 EFLAGS: 00010246
RAX: 0000000000000000 RBX: fffffffffffffeb0 RCX: 00007f730b784270
RDX: 0000000000000080 RSI: 00007ffe17ec5340 RDI: 00007ffe17ec5340
RBP: 0000000000000002 R08: 0000000000000004 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe17ec5490 R14: 0000000000000000 R15: 0000000000000000
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 22321 Comm: syz-executor.5 Not tainted 4.19.205-syzkaller #0
Mem-Info:
active_anon:294658 inactive_anon:8982 isolated_anon:0
active_file:14 inactive_file:11 isolated_file:0
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:17985 slab_unreclaimable:1257889
mapped:57624 shmem:9199 pagetables:24092 bounce:0
free:11095 free_pcp:202 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:1157748kB inactive_anon:35928kB active_file:44kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:230496kB dirty:0kB writeback:0kB shmem:36792kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 423936kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 1 active_anon:20884kB inactive_anon:0kB active_file:12kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:4kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
<IRQ>
Node 0 DMA free:10852kB min:204kB low:252kB high:300kB active_anon:4136kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:32kB pagetables:20kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
lowmem_reserve[]: 0 2693 2695 2695 2695
warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
Node 0 DMA32 free:13480kB min:35996kB low:44992kB high:53988kB active_anon:1153612kB inactive_anon:35928kB active_file:44kB inactive_file:52kB unevictable:0kB writepending:0kB present:3129332kB managed:2763456kB mlocked:0kB kernel_stack:28096kB pagetables:77116kB bounce:0kB free_pcp:328kB local_pcp:296kB free_cma:0kB
lowmem_reserve[]: 0 0 1 1 1
Node 0 Normal free:0kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:20048kB min:53876kB low:67344kB high:80812kB active_anon:20884kB inactive_anon:0kB active_file:12kB inactive_file:0kB unevictable:0kB writepending:0kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:7872kB pagetables:19232kB bounce:0kB free_pcp:480kB local_pcp:232kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
__alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
__alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
Node 0 DMA: 5*4kB (ME) 2*8kB (ME) 4*16kB (UME) 2*32kB (ME) 1*64kB (E) 3*128kB (UME) 2*256kB (ME) 3*512kB (UME) 2*1024kB (ME) 1*2048kB (E) 1*4096kB (M) = 10852kB
Node 0 DMA32: 1908*4kB (UMEH) 447*8kB (UMEH) 112*16kB (UMEH) 15*32kB (UH) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13480kB
Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB
Node 1 Normal: 356*4kB (UM) 72*8kB (ME) 16*16kB (M) 8*32kB (UME) 2*64kB (UE) 0*128kB 2*256kB (UM) 3*512kB (UME) 1*1024kB (U) 1*2048kB (U) 3*4096kB (M) = 20048kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
__alloc_pages include/linux/gfp.h:496 [inline]
__alloc_pages_node include/linux/gfp.h:509 [inline]
kmem_getpages mm/slab.c:1412 [inline]
cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
fallback_alloc+0x213/0x2e0 mm/slab.c:3224
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
slab_alloc_node mm/slab.c:3332 [inline]
kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
9224 total pagecache pages
__alloc_skb+0x71/0x560 net/core/skbuff.c:193
0 pages in swap cache
__netdev_alloc_skb+0x76/0x460 net/core/skbuff.c:407
Swap cache stats: add 0, delete 0, find 0/0
netdev_alloc_skb include/linux/skbuff.h:2680 [inline]
dev_alloc_skb include/linux/skbuff.h:2693 [inline]
send_hsr_supervision_frame+0x107/0xf70 net/hsr/hsr_device.c:265
Free swap = 0kB
Total swap = 0kB
2097051 pages RAM
hsr_announce+0x125/0x3a0 net/hsr/hsr_device.c:350
0 pages HighMem/MovableOnly
call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
369648 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
cron: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
cron cpuset=/ mems_allowed=0-1
expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
__run_timers kernel/time/timer.c:1696 [inline]
run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
__do_softirq+0x265/0x980 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x215/0x260 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:slab_alloc mm/slab.c:3390 [inline]
RIP: 0010:kmem_cache_alloc+0x2c4/0x370 mm/slab.c:3557
Code: 00 48 c7 c7 ab 65 b8 89 e8 59 68 a9 ff e9 b5 fd ff ff e8 4f 9b cf ff 48 83 3d 7f 67 59 08 00 0f 84 ae 00 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 1c fe ff ff 65 ff 05 eb c3 69 7e 48 8b 05 9c dd
RSP: 0000:ffff88802e69f810 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000007 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff888090c0edc8 RDI: 0000000000000286
RBP: 0000000000480020 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88823b33a540 R14: ffff88823b33a540 R15: 0000000000000286
skb_clone+0x151/0x3d0 net/core/skbuff.c:1293
____bpf_clone_redirect net/core/filter.c:2079 [inline]
bpf_clone_redirect+0xaf/0x430 net/core/filter.c:2066
___bpf_prog_run+0x1c20/0x50b0 kernel/bpf/core.c:1184
CPU: 0 PID: 7784 Comm: cron Not tainted 4.19.205-syzkaller #0
kworker/1:4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kworker/1:4 cpuset=/ mems_allowed=0-1
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
__alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
__alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
__alloc_pages include/linux/gfp.h:496 [inline]
__alloc_pages_node include/linux/gfp.h:509 [inline]
kmem_getpages mm/slab.c:1412 [inline]
cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
fallback_alloc+0x213/0x2e0 mm/slab.c:3224
slab_alloc_node mm/slab.c:3332 [inline]
kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
__alloc_skb+0x71/0x560 net/core/skbuff.c:193
__netdev_alloc_skb+0x76/0x460 net/core/skbuff.c:407
netdev_alloc_skb include/linux/skbuff.h:2680 [inline]
dev_alloc_skb include/linux/skbuff.h:2693 [inline]
send_hsr_supervision_frame+0x107/0xf70 net/hsr/hsr_device.c:265
hsr_announce+0x125/0x3a0 net/hsr/hsr_device.c:350
call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
__run_timers kernel/time/timer.c:1696 [inline]
run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
__do_softirq+0x265/0x980 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x215/0x260 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:debug_lockdep_rcu_enabled+0x50/0xe0 kernel/rcu/update.c:253
Code: 08 84 d2 0f 85 87 00 00 00 8b 35 7f 30 d6 09 85 f6 74 79 48 c7 c0 a0 f1 45 8a 48 ba 00 00 00 00 00 fc ff df 48 89 c1 83 e0 07 <48> c1 e9 03 83 c0 03 0f b6 14 11 38 d0 7c 04 84 d2 75 64 8b 0d e7
RSP: 0000:ffff8880a9617408 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffff8880981d9140 RCX: ffffffff8a45f1a0
RDX: dffffc0000000000 RSI: 0000000000000002 RDI: 0000000000000286
RBP: ffff8880b59f68c0 R08: 000000009f34173b R09: 0000000000000004
R10: ffff8880a97cef28 R11: 0000000000000000 R12: ffff88809aa28e00
R13: ffff8880a9617560 R14: ffff8880a9617564 R15: ffff8880a9617578
rcu_read_lock include/linux/rcupdate.h:628 [inline]
list_lru_count_one+0x66/0x360 mm/list_lru.c:189
list_lru_shrink_count include/linux/list_lru.h:123 [inline]
super_cache_count+0x14f/0x2e0 fs/super.c:144
do_shrink_slab+0x10b/0xa40 mm/vmscan.c:464
shrink_slab+0x16f/0x550 mm/vmscan.c:693
shrink_node.isra.0+0x2d3/0x1300 mm/vmscan.c:2748
shrink_zones mm/vmscan.c:2977 [inline]
do_try_to_free_pages+0x38e/0xfe0 mm/vmscan.c:3035
try_to_free_pages+0x27f/0x7c0 mm/vmscan.c:3251
__perform_reclaim mm/page_alloc.c:3800 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3821 [inline]
__alloc_pages_slowpath mm/page_alloc.c:4211 [inline]
__alloc_pages_nodemask+0xcc8/0x2890 mm/page_alloc.c:4419
alloc_pages_current+0x193/0x2a0 mm/mempolicy.c:2197
alloc_pages include/linux/gfp.h:532 [inline]
__page_cache_alloc mm/filemap.c:969 [inline]
page_cache_read mm/filemap.c:2408 [inline]
filemap_fault+0x146e/0x2180 mm/filemap.c:2592
ext4_filemap_fault+0x84/0xb0 fs/ext4/inode.c:6379
__do_fault+0x10b/0x4b0 mm/memory.c:3403
do_read_fault mm/memory.c:3815 [inline]
do_fault mm/memory.c:3944 [inline]
handle_pte_fault mm/memory.c:4175 [inline]
__handle_mm_fault+0x273b/0x41c0 mm/memory.c:4299
handle_mm_fault+0x436/0xb10 mm/memory.c:4336
__do_page_fault+0x68e/0xd60 arch/x86/mm/fault.c:1412
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205
RIP: 0033:0x7f730b784270
Code: Bad RIP value.
RSP: 002b:00007ffe17ec5338 EFLAGS: 00010246
RAX: 0000000000000000 RBX: fffffffffffffeb0 RCX: 00007f730b784270
RDX: 0000000000000080 RSI: 00007ffe17ec5340 RDI: 00007ffe17ec5340
RBP: 0000000000000002 R08: 0000000000000004 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe17ec5490 R14: 0000000000000000 R15: 0000000000000000
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 9351 Comm: kworker/1:4 Not tainted 4.19.205-syzkaller #0
Mem-Info:
active_anon:294658 inactive_anon:8982 isolated_anon:0
active_file:14 inactive_file:11 isolated_file:0
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:17985 slab_unreclaimable:1257889
mapped:57624 shmem:9199 pagetables:24092 bounce:0
free:11095 free_pcp:202 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:1157748kB inactive_anon:35928kB active_file:44kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:230496kB dirty:0kB writeback:0kB shmem:36792kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 423936kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Workqueue: events defense_work_handler
Node 1 active_anon:20884kB inactive_anon:0kB active_file:12kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:4kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 0 DMA free:10852kB min:204kB low:252kB high:300kB active_anon:4136kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:32kB pagetables:20kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
<IRQ>
lowmem_reserve[]: 0 2693 2695 2695 2695
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
Node 0 DMA32 free:13480kB min:35996kB low:44992kB high:53988kB active_anon:1153612kB inactive_anon:35928kB active_file:44kB inactive_file:52kB unevictable:0kB writepending:0kB present:3129332kB managed:2763456kB mlocked:0kB kernel_stack:28096kB pagetables:77116kB bounce:0kB free_pcp:328kB local_pcp:296kB free_cma:0kB
warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
lowmem_reserve[]: 0 0 1 1 1
Node 0 Normal free:0kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:20048kB min:53876kB low:67344kB high:80812kB active_anon:20884kB inactive_anon:0kB active_file:12kB inactive_file:0kB unevictable:0kB writepending:0kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:7872kB pagetables:19232kB bounce:0kB free_pcp:480kB local_pcp:232kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 5*4kB (ME) 2*8kB (ME) 4*16kB (UME) 2*32kB (ME) 1*64kB (E) 3*128kB (UME) 2*256kB (ME) 3*512kB (UME) 2*1024kB (ME) 1*2048kB (E) 1*4096kB (M) = 10852kB
Node 0 DMA32: 1908*4kB (UMEH) 447*8kB (UMEH) 112*16kB (UMEH) 15*32kB (UH) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13480kB
__alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
__alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB
Node 1 Normal: 356*4kB (UM) 72*8kB (ME) 16*16kB (M) 8*32kB (UME) 2*64kB (UE) 0*128kB 2*256kB (UM) 3*512kB (UME) 1*1024kB (U) 1*2048kB (U) 3*4096kB (M) = 20048kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
9224 total pagecache pages
0 pages in swap cache
__alloc_pages include/linux/gfp.h:496 [inline]
__alloc_pages_node include/linux/gfp.h:509 [inline]
kmem_getpages mm/slab.c:1412 [inline]
cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
Swap cache stats: add 0, delete 0, find 0/0
fallback_alloc+0x213/0x2e0 mm/slab.c:3224
Free swap = 0kB
Total swap = 0kB
slab_alloc_node mm/slab.c:3332 [inline]
kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
2097051 pages RAM
__alloc_skb+0x71/0x560 net/core/skbuff.c:193
0 pages HighMem/MovableOnly
__netdev_alloc_skb+0x76/0x460 net/core/skbuff.c:407
369648 pages reserved
0 pages cma reserved
netdev_alloc_skb include/linux/skbuff.h:2680 [inline]
dev_alloc_skb include/linux/skbuff.h:2693 [inline]
__ieee80211_beacon_get+0xc7d/0x1a30 net/mac80211/tx.c:4338
cron: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
cron cpuset=/ mems_allowed=0-1
ieee80211_beacon_get_tim+0x88/0x890 net/mac80211/tx.c:4449
ieee80211_beacon_get include/net/mac80211.h:4484 [inline]
mac80211_hwsim_beacon_tx+0xff/0x680 drivers/net/wireless/mac80211_hwsim.c:1577
__iterate_interfaces+0x2e1/0x4a0 net/mac80211/util.c:614
ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:650
mac80211_hwsim_beacon+0xc9/0x190 drivers/net/wireless/mac80211_hwsim.c:1615
__tasklet_hrtimer_trampoline+0x29/0xa0 kernel/softirq.c:601
tasklet_action_common.constprop.0+0x265/0x360 kernel/softirq.c:522
__do_softirq+0x265/0x980 kernel/softirq.c:292
do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1092
</IRQ>
do_softirq.part.0+0x160/0x1c0 kernel/softirq.c:336
do_softirq kernel/softirq.c:328 [inline]
__local_bh_enable_ip+0x20e/0x270 kernel/softirq.c:189
local_bh_enable include/linux/bottom_half.h:32 [inline]
update_defense_level+0xa6a/0x10f0 net/netfilter/ipvs/ip_vs_ctl.c:215
defense_work_handler+0x25/0xe0 net/netfilter/ipvs/ip_vs_ctl.c:229
process_one_work+0x864/0x1570 kernel/workqueue.c:2153
worker_thread+0x64c/0x1130 kernel/workqueue.c:2296
kthread+0x33f/0x460 kernel/kthread.c:259
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
CPU: 0 PID: 7784 Comm: cron Not tainted 4.19.205-syzkaller #0
kworker/1:4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kworker/1:4 cpuset=/ mems_allowed=0-1
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
__alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
__alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
__alloc_pages include/linux/gfp.h:496 [inline]
__alloc_pages_node include/linux/gfp.h:509 [inline]
kmem_getpages mm/slab.c:1412 [inline]
cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
fallback_alloc+0x213/0x2e0 mm/slab.c:3224
slab_alloc_node mm/slab.c:3332 [inline]
kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
__alloc_skb+0x71/0x560 net/core/skbuff.c:193
__netdev_alloc_skb+0x76/0x460 net/core/skbuff.c:407
netdev_alloc_skb include/linux/skbuff.h:2680 [inline]
dev_alloc_skb include/linux/skbuff.h:2693 [inline]
send_hsr_supervision_frame+0x107/0xf70 net/hsr/hsr_device.c:265
hsr_announce+0x125/0x3a0 net/hsr/hsr_device.c:350
call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
__run_timers kernel/time/timer.c:1696 [inline]
run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
__do_softirq+0x265/0x980 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x215/0x260 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:debug_lockdep_rcu_enabled+0x50/0xe0 kernel/rcu/update.c:253
Code: 08 84 d2 0f 85 87 00 00 00 8b 35 7f 30 d6 09 85 f6 74 79 48 c7 c0 a0 f1 45 8a 48 ba 00 00 00 00 00 fc ff df 48 89 c1 83 e0 07 <48> c1 e9 03 83 c0 03 0f b6 14 11 38 d0 7c 04 84 d2 75 64 8b 0d e7
RSP: 0000:ffff8880a9617408 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffff8880981d9140 RCX: ffffffff8a45f1a0
RDX: dffffc0000000000 RSI: 0000000000000002 RDI: 0000000000000286
RBP: ffff8880b59f68c0 R08: 000000009f34173b R09: 0000000000000004
R10: ffff8880a97cef28 R11: 0000000000000000 R12: ffff88809aa28e00
R13: ffff8880a9617560 R14: ffff8880a9617564 R15: ffff8880a9617578
rcu_read_lock include/linux/rcupdate.h:628 [inline]
list_lru_count_one+0x66/0x360 mm/list_lru.c:189
list_lru_shrink_count include/linux/list_lru.h:123 [inline]
super_cache_count+0x14f/0x2e0 fs/super.c:144
do_shrink_slab+0x10b/0xa40 mm/vmscan.c:464
shrink_slab+0x16f/0x550 mm/vmscan.c:693
shrink_node.isra.0+0x2d3/0x1300 mm/vmscan.c:2748
shrink_zones mm/vmscan.c:2977 [inline]
do_try_to_free_pages+0x38e/0xfe0 mm/vmscan.c:3035
try_to_free_pages+0x27f/0x7c0 mm/vmscan.c:3251
__perform_reclaim mm/page_alloc.c:3800 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3821 [inline]
__alloc_pages_slowpath mm/page_alloc.c:4211 [inline]
__alloc_pages_nodemask+0xcc8/0x2890 mm/page_alloc.c:4419
alloc_pages_current+0x193/0x2a0 mm/mempolicy.c:2197
alloc_pages include/linux/gfp.h:532 [inline]
__page_cache_alloc mm/filemap.c:969 [inline]
page_cache_read mm/filemap.c:2408 [inline]
filemap_fault+0x146e/0x2180 mm/filemap.c:2592
ext4_filemap_fault+0x84/0xb0 fs/ext4/inode.c:6379
__do_fault+0x10b/0x4b0 mm/memory.c:3403
do_read_fault mm/memory.c:3815 [inline]
do_fault mm/memory.c:3944 [inline]
handle_pte_fault mm/memory.c:4175 [inline]
__handle_mm_fault+0x273b/0x41c0 mm/memory.c:4299
handle_mm_fault+0x436/0xb10 mm/memory.c:4336
__do_page_fault+0x68e/0xd60 arch/x86/mm/fault.c:1412
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205
RIP: 0033:0x7f730b784270
Code: Bad RIP value.
RSP: 002b:00007ffe17ec5338 EFLAGS: 00010246
RAX: 0000000000000000 RBX: fffffffffffffeb0 RCX: 00007f730b784270
RDX: 0000000000000080 RSI: 00007ffe17ec5340 RDI: 00007ffe17ec5340
RBP: 0000000000000002 R08: 0000000000000004 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe17ec5490 R14: 0000000000000000 R15: 0000000000000000
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 9351 Comm: kworker/1:4 Not tainted 4.19.205-syzkaller #0
Mem-Info:
active_anon:294658 inactive_anon:8982 isolated_anon:0
active_file:14 inactive_file:11 isolated_file:0
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:17985 slab_unreclaimable:1257889
mapped:57624 shmem:9199 pagetables:24092 bounce:0
free:11095 free_pcp:202 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:1157748kB inactive_anon:35928kB active_file:44kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:230496kB dirty:0kB writeback:0kB shmem:36792kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 423936kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Workqueue: events defense_work_handler
Node 1 active_anon:20884kB inactive_anon:0kB active_file:12kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:4kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 0 DMA free:10852kB min:204kB low:252kB high:300kB active_anon:4136kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:32kB pagetables:20kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
<IRQ>
lowmem_reserve[]: 0 2693 2695 2695 2695
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
Node 0 DMA32 free:13480kB min:35996kB low:44992kB high:53988kB active_anon:1153612kB inactive_anon:35928kB active_file:44kB inactive_file:52kB unevictable:0kB writepending:0kB present:3129332kB managed:2763456kB mlocked:0kB kernel_stack:28096kB pagetables:77116kB bounce:0kB free_pcp:328kB local_pcp:296kB free_cma:0kB
warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
lowmem_reserve[]: 0 0 1 1 1
Node 0 Normal free:0kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:20048kB min:53876kB low:67344kB high:80812kB active_anon:20884kB inactive_anon:0kB active_file:12kB inactive_file:0kB unevictable:0kB writepending:0kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:7872kB pagetables:19232kB bounce:0kB free_pcp:480kB local_pcp:232kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 5*4kB (ME) 2*8kB (ME) 4*16kB (UME) 2*32kB (ME) 1*64kB (E) 3*128kB (UME) 2*256kB (ME) 3*512kB (UME) 2*1024kB (ME) 1*2048kB (E) 1*4096kB (M) = 10852kB
__alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
__alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
Node 0 DMA32: 1908*4kB (UMEH) 447*8kB (UMEH) 112*16kB (UMEH) 15*32kB (UH) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13480kB
Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB
Node 1 Normal: 356*4kB (UM) 72*8kB (ME) 16*16kB (M) 8*32kB (UME) 2*64kB (UE) 0*128kB 2*256kB (UM) 3*512kB (UME) 1*1024kB (U) 1*2048kB (U) 3*4096kB (M) = 20048kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
__alloc_pages include/linux/gfp.h:496 [inline]
__alloc_pages_node include/linux/gfp.h:509 [inline]
kmem_getpages mm/slab.c:1412 [inline]
cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
fallback_alloc+0x213/0x2e0 mm/slab.c:3224
9224 total pagecache pages
slab_alloc_node mm/slab.c:3332 [inline]
kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
0 pages in swap cache
__alloc_skb+0x71/0x560 net/core/skbuff.c:193
Swap cache stats: add 0, delete 0, find 0/0
__netdev_alloc_skb+0x76/0x460 net/core/skbuff.c:407
Free swap = 0kB
netdev_alloc_skb include/linux/skbuff.h:2680 [inline]
dev_alloc_skb include/linux/skbuff.h:2693 [inline]
__ieee80211_beacon_get+0xc7d/0x1a30 net/mac80211/tx.c:4338
Total swap = 0kB
2097051 pages RAM
0 pages HighMem/MovableOnly
369648 pages reserved
ieee80211_beacon_get_tim+0x88/0x890 net/mac80211/tx.c:4449
0 pages cma reserved
cron: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
cron cpuset=/ mems_allowed=0-1
ieee80211_beacon_get include/net/mac80211.h:4484 [inline]
mac80211_hwsim_beacon_tx+0xff/0x680 drivers/net/wireless/mac80211_hwsim.c:1577
__iterate_interfaces+0x2e1/0x4a0 net/mac80211/util.c:614
ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:650
mac80211_hwsim_beacon+0xc9/0x190 drivers/net/wireless/mac80211_hwsim.c:1615
__tasklet_hrtimer_trampoline+0x29/0xa0 kernel/softirq.c:601
tasklet_action_common.constprop.0+0x265/0x360 kernel/softirq.c:522
__do_softirq+0x265/0x980 kernel/softirq.c:292
do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1092
</IRQ>
do_softirq.part.0+0x160/0x1c0 kernel/softirq.c:336
do_softirq kernel/softirq.c:328 [inline]
__local_bh_enable_ip+0x20e/0x270 kernel/softirq.c:189
local_bh_enable include/linux/bottom_half.h:32 [inline]
update_defense_level+0xa6a/0x10f0 net/netfilter/ipvs/ip_vs_ctl.c:215
defense_work_handler+0x25/0xe0 net/netfilter/ipvs/ip_vs_ctl.c:229
process_one_work+0x864/0x1570 kernel/workqueue.c:2153
worker_thread+0x64c/0x1130 kernel/workqueue.c:2296
kthread+0x33f/0x460 kernel/kthread.c:259
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
CPU: 0 PID: 7784 Comm: cron Not tainted 4.19.205-syzkaller #0
kworker/1:4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kworker/1:4 cpuset=/ mems_allowed=0-1
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
__alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
__alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
__alloc_pages include/linux/gfp.h:496 [inline]
__alloc_pages_node include/linux/gfp.h:509 [inline]
kmem_getpages mm/slab.c:1412 [inline]
cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682
fallback_alloc+0x213/0x2e0 mm/slab.c:3224
slab_alloc_node mm/slab.c:3332 [inline]
kmem_cache_alloc_node+0xe3/0x3b0 mm/slab.c:3647
__alloc_skb+0x71/0x560 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:995 [inline]
ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403
ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835
call_timer_fn+0x177/0x700 kernel/time/timer.c:1338
expire_timers+0x243/0x4e0 kernel/time/timer.c:1375
__run_timers kernel/time/timer.c:1696 [inline]
run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709
__do_softirq+0x265/0x980 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x215/0x260 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:debug_lockdep_rcu_enabled+0x50/0xe0 kernel/rcu/update.c:253
Code: 08 84 d2 0f 85 87 00 00 00 8b 35 7f 30 d6 09 85 f6 74 79 48 c7 c0 a0 f1 45 8a 48 ba 00 00 00 00 00 fc ff df 48 89 c1 83 e0 07 <48> c1 e9 03 83 c0 03 0f b6 14 11 38 d0 7c 04 84 d2 75 64 8b 0d e7
RSP: 0000:ffff8880a9617408 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffff8880981d9140 RCX: ffffffff8a45f1a0
RDX: dffffc0000000000 RSI: 0000000000000002 RDI: 0000000000000286
RBP: ffff8880b59f68c0 R08: 000000009f34173b R09: 0000000000000004
R10: ffff8880a97cef28 R11: 0000000000000000 R12: ffff88809aa28e00
R13: ffff8880a9617560 R14: ffff8880a9617564 R15: ffff8880a9617578
rcu_read_lock include/linux/rcupdate.h:628 [inline]
list_lru_count_one+0x66/0x360 mm/list_lru.c:189
list_lru_shrink_count include/linux/list_lru.h:123 [inline]
super_cache_count+0x14f/0x2e0 fs/super.c:144
do_shrink_slab+0x10b/0xa40 mm/vmscan.c:464
shrink_slab+0x16f/0x550 mm/vmscan.c:693
shrink_node.isra.0+0x2d3/0x1300 mm/vmscan.c:2748
shrink_zones mm/vmscan.c:2977 [inline]
do_try_to_free_pages+0x38e/0xfe0 mm/vmscan.c:3035
try_to_free_pages+0x27f/0x7c0 mm/vmscan.c:3251
__perform_reclaim mm/page_alloc.c:3800 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3821 [inline]
__alloc_pages_slowpath mm/page_alloc.c:4211 [inline]
__alloc_pages_nodemask+0xcc8/0x2890 mm/page_alloc.c:4419
alloc_pages_current+0x193/0x2a0 mm/mempolicy.c:2197
alloc_pages include/linux/gfp.h:532 [inline]
__page_cache_alloc mm/filemap.c:969 [inline]
page_cache_read mm/filemap.c:2408 [inline]
filemap_fault+0x146e/0x2180 mm/filemap.c:2592
ext4_filemap_fault+0x84/0xb0 fs/ext4/inode.c:6379
__do_fault+0x10b/0x4b0 mm/memory.c:3403
do_read_fault mm/memory.c:3815 [inline]
do_fault mm/memory.c:3944 [inline]
handle_pte_fault mm/memory.c:4175 [inline]
__handle_mm_fault+0x273b/0x41c0 mm/memory.c:4299
handle_mm_fault+0x436/0xb10 mm/memory.c:4336
__do_page_fault+0x68e/0xd60 arch/x86/mm/fault.c:1412
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205
RIP: 0033:0x7f730b784270
Code: Bad RIP value.
RSP: 002b:00007ffe17ec5338 EFLAGS: 00010246
RAX: 0000000000000000 RBX: fffffffffffffeb0 RCX: 00007f730b784270
RDX: 0000000000000080 RSI: 00007ffe17ec5340 RDI: 00007ffe17ec5340
RBP: 0000000000000002 R08: 0000000000000004 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe17ec5490 R14: 0000000000000000 R15: 0000000000000000
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 9351 Comm: kworker/1:4 Not tainted 4.19.205-syzkaller #0
Mem-Info:
active_anon:294658 inactive_anon:8982 isolated_anon:0
active_file:14 inactive_file:11 isolated_file:0
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:17985 slab_unreclaimable:1257889
mapped:57624 shmem:9199 pagetables:24092 bounce:0
free:11095 free_pcp:202 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:1157748kB inactive_anon:35928kB active_file:44kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:230496kB dirty:0kB writeback:0kB shmem:36792kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 423936kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Workqueue: events defense_work_handler
Node 1 active_anon:20884kB inactive_anon:0kB active_file:12kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:4kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 0 DMA free:10852kB min:204kB low:252kB high:300kB active_anon:4136kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:32kB pagetables:20kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
<IRQ>
lowmem_reserve[]: 0 2693 2695 2695 2695
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
Node 0 DMA32 free:13480kB min:35996kB low:44992kB high:53988kB active_anon:1153612kB inactive_anon:35928kB active_file:44kB inactive_file:52kB unevictable:0kB writepending:0kB present:3129332kB managed:2763456kB mlocked:0kB kernel_stack:28096kB pagetables:77116kB bounce:0kB free_pcp:328kB local_pcp:296kB free_cma:0kB
warn_alloc.cold+0x7b/0x18f mm/page_alloc.c:3457
lowmem_reserve[]: 0 0 1 1 1
Node 0 Normal free:0kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:20048kB min:53876kB low:67344kB high:80812kB active_anon:20884kB inactive_anon:0kB active_file:12kB inactive_file:0kB unevictable:0kB writepending:0kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:7872kB pagetables:19232kB bounce:0kB free_pcp:480kB local_pcp:232kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 5*4kB (ME) 2*8kB (ME) 4*16kB (UME) 2*32kB (ME) 1*64kB (E) 3*128kB (UME) 2*256kB (ME) 3*512kB (UME) 2*1024kB (ME) 1*2048kB (E) 1*4096kB (M) = 10852kB
__alloc_pages_slowpath mm/page_alloc.c:4317 [inline]
__alloc_pages_nodemask+0x232f/0x2890 mm/page_alloc.c:4419
Node 0 DMA32: 1908*4kB (UMEH) 447*8kB (UMEH) 112*16kB (UMEH) 15*32kB (UH) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13480kB
Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB
Node 1 Normal: 356*4kB (UM) 72*8kB (ME) 16*16kB (M) 8*32kB (UME) 2*64kB (UE) 0*128kB 2*256kB (UM) 3*512kB (UME) 1*1024kB (U) 1*2048kB (U) 3*4096kB (M) = 20048kB
Node 0 hugepages_total=0 hugepages_free

---
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Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.