[v5.15] INFO: rcu detected stall in process_one_work

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 574362648507 Linux 5.15.151
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=14dff7ea180000
kernel config: https://syzkaller.appspot.com/x/.config?x=6c9a42d9e3519ca9
dashboard link: https://syzkaller.appspot.com/bug?extid=927883d76da2fbdde4d8
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

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

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/f00d4062000b/disk-57436264.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/3a74c2b6ca62/vmlinux-57436264.xz
kernel image: https://storage.googleapis.com/syzbot-assets/93bd706dc219/bzImage-57436264.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+927883...@syzkaller.appspotmail.com

rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 GPs behind) idle=bd7/1/0x4000000000000000 softirq=94263/94267 fqs=0
(detected by 1, t=10502 jiffies, g=155825, q=38)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2221 Comm: kworker/0:30 Not tainted 5.15.151-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Workqueue: rcu_gp srcu_invoke_callbacks
RIP: 0010:lock_acquire+0xe5/0x4f0 kernel/locking/lockdep.c:5596
Code: 8d 3c c5 e8 8c e3 8d be 08 00 00 00 e8 74 6b 67 00 89 d8 48 0f a3 05 c2 04 81 0c 73 0d e8 43 67 08 00 84 c0 0f 84 b9 02 00 00 <48> c7 c0 84 c0 e3 8d 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 dd 02
RSP: 0018:ffffc90000007b60 EFLAGS: 00000002
RAX: 000000000018db01 RBX: 0000000000000000 RCX: ffffffff8162881c
RDX: 0000000000000000 RSI: ffffffff8ad88f20 RDI: ffffffff8ad88ee0
RBP: ffffc90000007ca8 R08: dffffc0000000000 R09: fffffbfff1bc719e
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000000f74
R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33b21000 CR3: 00000000510a2000 CR4: 00000000003506f0
Call Trace:
<NMI>
</NMI>
<IRQ>
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline]
_raw_spin_lock_irq+0xcf/0x110 kernel/locking/spinlock.c:170
__run_hrtimer kernel/time/hrtimer.c:1690 [inline]
__hrtimer_run_queues+0x662/0xcf0 kernel/time/hrtimer.c:1750
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
__sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 02 cc a4 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 77 17 32 f7 65 8b 05 a8 49 dd 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc900030f7aa0 EFLAGS: 00000206
RAX: 8e61ddf9420fc700 RBX: 1ffff9200061ef58 RCX: ffffffff8162f4e8
RDX: dffffc0000000000 RSI: ffffffff8a8b1500 RDI: 0000000000000001
RBP: ffffc900030f7b30 R08: dffffc0000000000 R09: fffffbfff1f79e1b
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff9200061ef54 R14: ffffc900030f7ac0 R15: 0000000000000246
srcu_invoke_callbacks+0x1b9/0x400 kernel/rcu/srcutree.c:1272
process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
kthread+0x3f6/0x4f0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
</TASK>
rcu: rcu_preempt kthread starved for 10502 jiffies! g155825 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:27000 pid: 15 ppid: 2 flags:0x00004000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5030 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
schedule+0x11b/0x1f0 kernel/sched/core.c:6459
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1884
rcu_gp_fqs_loop+0x2bf/0x1080 kernel/rcu/tree.c:1972
rcu_gp_kthread+0xa4/0x360 kernel/rcu/tree.c:2145
kthread+0x3f6/0x4f0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
</TASK>
rcu: Stack dump where RCU GP kthread last ran:
NMI backtrace for cpu 1
CPU: 1 PID: 8652 Comm: kworker/1:32 Not tainted 5.15.151-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Workqueue: events bpf_prog_free_deferred
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline]
rcu_check_gp_kthread_starvation+0x1d2/0x240 kernel/rcu/tree_stall.h:487
print_other_cpu_stall+0x137a/0x14d0 kernel/rcu/tree_stall.h:592
check_cpu_stall kernel/rcu/tree_stall.h:745 [inline]
rcu_pending kernel/rcu/tree.c:3932 [inline]
rcu_sched_clock_irq+0xa38/0x1150 kernel/rcu/tree.c:2619
update_process_times+0x196/0x200 kernel/time/timer.c:1788
tick_sched_handle kernel/time/tick-sched.c:254 [inline]
tick_sched_timer+0x386/0x550 kernel/time/tick-sched.c:1473
__run_hrtimer kernel/time/hrtimer.c:1686 [inline]
__hrtimer_run_queues+0x55b/0xcf0 kernel/time/hrtimer.c:1750
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
__sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:csd_lock_wait kernel/smp.c:440 [inline]
RIP: 0010:smp_call_function_many_cond+0xa93/0xd90 kernel/smp.c:969
Code: 04 03 84 c0 0f 85 84 00 00 00 45 8b 7d 00 44 89 fe 83 e6 01 31 ff e8 ac ce 0b 00 41 83 e7 01 75 07 e8 41 cb 0b 00 eb 41 f3 90 <48> b8 00 00 00 00 00 fc ff df 0f b6 04 03 84 c0 75 11 41 f7 45 00
RSP: 0018:ffffc9000f1378a0 EFLAGS: 00000293
RAX: ffffffff81746a74 RBX: 1ffff11017348541 RCX: ffff888075ae3b80
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000f1379e0 R08: ffffffff81746a44 R09: fffffbfff1f79e1a
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff8880b9a42a08 R14: ffff8880b9b3b380 R15: 0000000000000001
on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1135
__purge_vmap_area_lazy+0x294/0x1740 mm/vmalloc.c:1683
_vm_unmap_aliases+0x453/0x4e0 mm/vmalloc.c:2107
vm_remove_mappings mm/vmalloc.c:2584 [inline]
__vunmap+0x72e/0xa20 mm/vmalloc.c:2611
bpf_jit_binary_free kernel/bpf/core.c:914 [inline]
bpf_jit_free+0x92/0x180 kernel/bpf/core.c:927
process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
kthread+0x3f6/0x4f0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
</TASK>


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