INFO: rcu detected stall in __tasklet_hrtimer_trampoline
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syzbot
Dec 23, 2020, 2:18:21 PM12/23/20
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 13d2ce42 Linux 4.19.163
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=167ac4c0d00000
kernel config: https://syzkaller.appspot.com/x/.config?x=fac7c3360835a4e0
dashboard link: https://syzkaller.appspot.com/bug?extid=8ad05af39a7c32ab44a3
compiler: gcc (GCC) 10.1.0-syz 20200507
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+8ad05a...@syzkaller.appspotmail.com
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
Bluetooth: hci3: command 0x0406 tx timeout
Bluetooth: hci2: command 0x0406 tx timeout
Bluetooth: hci0: command 0x0406 tx timeout
Bluetooth: hci4: command 0x0406 tx timeout
rcu: INFO: rcu_sched self-detected stall on CPU
rcu: 0-....: (10450 ticks this GP) idle=e16/1/0x4000000000000004 softirq=172407/172795 fqs=5182
rcu: (t=10502 jiffies g=13701 q=9)
NMI backtrace for cpu 0
CPU: 0 PID: 6540 Comm: syz-executor.1 Not tainted 4.19.163-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2fe lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1a6/0x1eb lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x15f/0x19c kernel/rcu/tree.c:1340
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
update_process_times+0x2a/0x70 kernel/time/timer.c:1650
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:168
tick_sched_timer+0xfc/0x290 kernel/time/tick-sched.c:1278
__run_hrtimer kernel/time/hrtimer.c:1401 [inline]
__hrtimer_run_queues+0x3f6/0xe60 kernel/time/hrtimer.c:1463
hrtimer_interrupt+0x32a/0x930 kernel/time/hrtimer.c:1521
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1067 [inline]
smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1092
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:109 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find.part.0+0x3e/0x270 kernel/bpf/core.c:511
Code: df 55 53 48 83 ec 10 e8 f0 7c f5 ff 8b 35 5a 88 71 08 89 f3 89 74 24 0c 83 e3 01 48 8d 3c dd a8 db e0 89 48 8d 6b 05 48 89 f8 <48> c1 e8 03 42 80 3c 20 00 0f 85 0f 02 00 00 48 8b 2c ed 80 db e0
RSP: 0018:ffff8880ba0077c0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffffff89e0dba8 RBX: 0000000000000000 RCX: ffffffff816f74ea
RDX: 0000000000000100 RSI: 0000000000000094 RDI: ffffffff89e0dba8
RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000005 R11: 0000000000000001 R12: dffffc0000000000
R13: 000000000045e149 R14: ffff8880b5bbec00 R15: 00000000000000e8
bpf_prog_kallsyms_find include/linux/rcupdate.h:628 [inline]
is_bpf_text_address+0x196/0x1b0 kernel/bpf/core.c:546
kernel_text_address kernel/extable.c:152 [inline]
kernel_text_address+0xbd/0xf0 kernel/extable.c:122
__kernel_text_address+0x9/0x30 kernel/extable.c:107
unwind_get_return_address arch/x86/kernel/unwind_orc.c:297 [inline]
unwind_get_return_address+0x51/0x90 arch/x86/kernel/unwind_orc.c:292
__save_stack_trace+0xaf/0x190 arch/x86/kernel/stacktrace.c:45
save_stack mm/kasan/kasan.c:448 [inline]
set_track mm/kasan/kasan.c:460 [inline]
kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553
kmem_cache_alloc+0x122/0x370 mm/slab.c:3559
__build_skb+0x39/0x300 net/core/skbuff.c:281
__netdev_alloc_skb+0x2a7/0x460 net/core/skbuff.c:426
netdev_alloc_skb include/linux/skbuff.h:2675 [inline]
dev_alloc_skb include/linux/skbuff.h:2688 [inline]
__ieee80211_beacon_get+0xc7d/0x1a30 net/mac80211/tx.c:4332
ieee80211_beacon_get_tim+0x88/0x890 net/mac80211/tx.c:4443
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+0x26c/0x9a0 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:544 [inline]
smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1094
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:compound_head include/linux/page-flags.h:142 [inline]
RIP: 0010:PageMlocked include/linux/page-flags.h:354 [inline]
RIP: 0010:page_remove_file_rmap+0x385/0xa30 mm/rmap.c:1246
Code: e7 ed 01 4c 89 e2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 20 06 00 00 48 8b 83 88 00 00 00 65 4c 89 68 68 <e8> 26 96 d2 ff 49 8d 7e 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa
RSP: 0018:ffff88805ab6f6f8 EFLAGS: 00000296 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff83801ea3
RDX: 0000000000000000 RSI: ffffffff83801eb1 RDI: 0000000000000005
RBP: ffff88813fffb000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000
R13: ffffffffffffffff R14: ffffea000268fa00 R15: 00007efd9d540000
page_remove_rmap+0xe5/0x120 mm/rmap.c:1300
zap_pte_range mm/memory.c:1350 [inline]
zap_pmd_range mm/memory.c:1452 [inline]
zap_pud_range mm/memory.c:1481 [inline]
zap_p4d_range mm/memory.c:1502 [inline]
unmap_page_range+0x12f6/0x2a70 mm/memory.c:1523
unmap_single_vma+0x198/0x300 mm/memory.c:1568
unmap_vmas+0xa9/0x180 mm/memory.c:1598
exit_mmap+0x2b9/0x530 mm/mmap.c:3093
__mmput kernel/fork.c:1015 [inline]
mmput+0x14e/0x4a0 kernel/fork.c:1036
exit_mm kernel/exit.c:549 [inline]
do_exit+0xaf0/0x2be0 kernel/exit.c:877
do_group_exit+0x125/0x310 kernel/exit.c:993
get_signal+0x3f2/0x1f70 kernel/signal.c:2589
do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:821
exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45e149
Code: Bad RIP value.
RSP: 002b:00007efd9ad68c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: 0000000000000018 RBX: 0000000000000004 RCX: 000000000045e149
RDX: 0400000000000018 RSI: 0000000020007fc0 RDI: 0000000000000005
RBP: 000000000119bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c
R13: 00007ffff266ab6f R14: 00007efd9ad699c0 R15: 000000000119bf8c
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
batman_adv: batadv0: Interface deactivated: batadv_slave_0
batman_adv: batadv0: Removing interface: batadv_slave_0
batman_adv: batadv0: Interface deactivated: batadv_slave_1
batman_adv: batadv0: Removing interface: batadv_slave_1
device bridge_slave_1 left promiscuous mode
bridge0: port 2(bridge_slave_1) entered disabled state
device bridge_slave_0 left promiscuous mode
bridge0: port 1(bridge_slave_0) entered disabled state
device veth1_macvtap left promiscuous mode
device veth0_macvtap left promiscuous mode
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
device veth1_vlan left promiscuous mode
device veth0_vlan left promiscuous mode
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
device hsr_slave_1 left promiscuous mode
device hsr_slave_0 left promiscuous mode
team0 (unregistering): Port device team_slave_1 removed
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
team0 (unregistering): Port device team_slave_0 removed
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
bond0 (unregistering): Releasing backup interface bond_slave_1
bond0 (unregistering): Releasing backup interface bond_slave_0
bond0 (unregistering): Released all slaves
IPVS: ftp: loaded support on port[0] = 21
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot found the following issue on:
HEAD commit: 13d2ce42 Linux 4.19.163
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=167ac4c0d00000
kernel config: https://syzkaller.appspot.com/x/.config?x=fac7c3360835a4e0
dashboard link: https://syzkaller.appspot.com/bug?extid=8ad05af39a7c32ab44a3
compiler: gcc (GCC) 10.1.0-syz 20200507
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+8ad05a...@syzkaller.appspotmail.com
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
Bluetooth: hci3: command 0x0406 tx timeout
Bluetooth: hci2: command 0x0406 tx timeout
Bluetooth: hci0: command 0x0406 tx timeout
Bluetooth: hci4: command 0x0406 tx timeout
rcu: INFO: rcu_sched self-detected stall on CPU
rcu: 0-....: (10450 ticks this GP) idle=e16/1/0x4000000000000004 softirq=172407/172795 fqs=5182
rcu: (t=10502 jiffies g=13701 q=9)
NMI backtrace for cpu 0
CPU: 0 PID: 6540 Comm: syz-executor.1 Not tainted 4.19.163-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2fe lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1a6/0x1eb lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x15f/0x19c kernel/rcu/tree.c:1340
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
update_process_times+0x2a/0x70 kernel/time/timer.c:1650
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:168
tick_sched_timer+0xfc/0x290 kernel/time/tick-sched.c:1278
__run_hrtimer kernel/time/hrtimer.c:1401 [inline]
__hrtimer_run_queues+0x3f6/0xe60 kernel/time/hrtimer.c:1463
hrtimer_interrupt+0x32a/0x930 kernel/time/hrtimer.c:1521
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1067 [inline]
smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1092
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:109 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find.part.0+0x3e/0x270 kernel/bpf/core.c:511
Code: df 55 53 48 83 ec 10 e8 f0 7c f5 ff 8b 35 5a 88 71 08 89 f3 89 74 24 0c 83 e3 01 48 8d 3c dd a8 db e0 89 48 8d 6b 05 48 89 f8 <48> c1 e8 03 42 80 3c 20 00 0f 85 0f 02 00 00 48 8b 2c ed 80 db e0
RSP: 0018:ffff8880ba0077c0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffffff89e0dba8 RBX: 0000000000000000 RCX: ffffffff816f74ea
RDX: 0000000000000100 RSI: 0000000000000094 RDI: ffffffff89e0dba8
RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000005 R11: 0000000000000001 R12: dffffc0000000000
R13: 000000000045e149 R14: ffff8880b5bbec00 R15: 00000000000000e8
bpf_prog_kallsyms_find include/linux/rcupdate.h:628 [inline]
is_bpf_text_address+0x196/0x1b0 kernel/bpf/core.c:546
kernel_text_address kernel/extable.c:152 [inline]
kernel_text_address+0xbd/0xf0 kernel/extable.c:122
__kernel_text_address+0x9/0x30 kernel/extable.c:107
unwind_get_return_address arch/x86/kernel/unwind_orc.c:297 [inline]
unwind_get_return_address+0x51/0x90 arch/x86/kernel/unwind_orc.c:292
__save_stack_trace+0xaf/0x190 arch/x86/kernel/stacktrace.c:45
save_stack mm/kasan/kasan.c:448 [inline]
set_track mm/kasan/kasan.c:460 [inline]
kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553
kmem_cache_alloc+0x122/0x370 mm/slab.c:3559
__build_skb+0x39/0x300 net/core/skbuff.c:281
__netdev_alloc_skb+0x2a7/0x460 net/core/skbuff.c:426
netdev_alloc_skb include/linux/skbuff.h:2675 [inline]
dev_alloc_skb include/linux/skbuff.h:2688 [inline]
__ieee80211_beacon_get+0xc7d/0x1a30 net/mac80211/tx.c:4332
ieee80211_beacon_get_tim+0x88/0x890 net/mac80211/tx.c:4443
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+0x26c/0x9a0 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:544 [inline]
smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1094
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:compound_head include/linux/page-flags.h:142 [inline]
RIP: 0010:PageMlocked include/linux/page-flags.h:354 [inline]
RIP: 0010:page_remove_file_rmap+0x385/0xa30 mm/rmap.c:1246
Code: e7 ed 01 4c 89 e2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 20 06 00 00 48 8b 83 88 00 00 00 65 4c 89 68 68 <e8> 26 96 d2 ff 49 8d 7e 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa
RSP: 0018:ffff88805ab6f6f8 EFLAGS: 00000296 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff83801ea3
RDX: 0000000000000000 RSI: ffffffff83801eb1 RDI: 0000000000000005
RBP: ffff88813fffb000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000
R13: ffffffffffffffff R14: ffffea000268fa00 R15: 00007efd9d540000
page_remove_rmap+0xe5/0x120 mm/rmap.c:1300
zap_pte_range mm/memory.c:1350 [inline]
zap_pmd_range mm/memory.c:1452 [inline]
zap_pud_range mm/memory.c:1481 [inline]
zap_p4d_range mm/memory.c:1502 [inline]
unmap_page_range+0x12f6/0x2a70 mm/memory.c:1523
unmap_single_vma+0x198/0x300 mm/memory.c:1568
unmap_vmas+0xa9/0x180 mm/memory.c:1598
exit_mmap+0x2b9/0x530 mm/mmap.c:3093
__mmput kernel/fork.c:1015 [inline]
mmput+0x14e/0x4a0 kernel/fork.c:1036
exit_mm kernel/exit.c:549 [inline]
do_exit+0xaf0/0x2be0 kernel/exit.c:877
do_group_exit+0x125/0x310 kernel/exit.c:993
get_signal+0x3f2/0x1f70 kernel/signal.c:2589
do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:821
exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45e149
Code: Bad RIP value.
RSP: 002b:00007efd9ad68c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: 0000000000000018 RBX: 0000000000000004 RCX: 000000000045e149
RDX: 0400000000000018 RSI: 0000000020007fc0 RDI: 0000000000000005
RBP: 000000000119bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c
R13: 00007ffff266ab6f R14: 00007efd9ad699c0 R15: 000000000119bf8c
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
batman_adv: batadv0: Interface deactivated: batadv_slave_0
batman_adv: batadv0: Removing interface: batadv_slave_0
batman_adv: batadv0: Interface deactivated: batadv_slave_1
batman_adv: batadv0: Removing interface: batadv_slave_1
device bridge_slave_1 left promiscuous mode
bridge0: port 2(bridge_slave_1) entered disabled state
device bridge_slave_0 left promiscuous mode
bridge0: port 1(bridge_slave_0) entered disabled state
device veth1_macvtap left promiscuous mode
device veth0_macvtap left promiscuous mode
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
device veth1_vlan left promiscuous mode
device veth0_vlan left promiscuous mode
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
device hsr_slave_1 left promiscuous mode
device hsr_slave_0 left promiscuous mode
team0 (unregistering): Port device team_slave_1 removed
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
team0 (unregistering): Port device team_slave_0 removed
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
bond0 (unregistering): Releasing backup interface bond_slave_1
bond0 (unregistering): Releasing backup interface bond_slave_0
bond0 (unregistering): Released all slaves
IPVS: ftp: loaded support on port[0] = 21
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot
Jun 30, 2021, 4:43:17 PM6/30/21
to syzkaller...@googlegroups.com
Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
Crashes did not happen for a while, no reproducer and no activity.
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