rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (0 ticks this GP) idle=457/1/0x4000000000000000 softirq=172680/172680 fqs=0
(detected by 1, t=10502 jiffies, g=249861, q=362 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 18676 Comm: syz-executor.0 Not tainted 5.19.0-rc3-syzkaller-00048-gde5c208d533a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:85 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x84/0x2e0 mm/kasan/generic.c:189
Code: da 4d 89 d6 4d 29 ce 49 83 fe 10 7f 30 4d 85 f6 0f 84 8e 01 00 00 4c 89 cb 4c 29 d3 66 2e 0f 1f 84 00 00 00 00 00 41 80 39 00 <0f> 85 e7 01 00 00 49 ff c1 48 ff c3 75 ee e9 67 01 00 00 44 89 cd
RSP: 0018:ffffc900000076d8 EFLAGS: 00000046
RAX: 0000000000000001 RBX: ffffffffffffffff RCX: ffffffff81688ce6
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fd48008
RBP: 000000000001ffff R08: dffffc0000000000 R09: fffffbfff1fa9001
R10: fffffbfff1fa9002 R11: 1ffffffff1fa9001 R12: dffffc0000000000
R13: ffff888079fd9d80 R14: 0000000000000001 R15: ffff888079fd9d80
FS: 00007f4bc6d08700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4bc5d9d090 CR3: 000000001db60000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:71 [inline]
test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline]
hlock_class kernel/locking/lockdep.c:227 [inline]
lookup_chain_cache_add kernel/locking/lockdep.c:3741 [inline]
validate_chain+0x126/0x65c0 kernel/locking/lockdep.c:3797
__lock_acquire+0x129a/0x1f80 kernel/locking/lockdep.c:5053
lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5665
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
_raw_spin_lock_irq+0xcf/0x110 kernel/locking/spinlock.c:170
__run_hrtimer kernel/time/hrtimer.c:1689 [inline]
__hrtimer_run_queues+0x546/0xa60 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x3a6/0xfd0 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0xf9/0x280 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20
RIP: 0010:finish_lock_switch+0x90/0x100 kernel/sched/core.c:4907
Code: 45 31 c9 68 96 39 5e 81 e8 fd 92 09 00 48 83 c4 08 4c 89 ff e8 21 c5 fe ff 66 90 4c 89 ff e8 57 bc d5 08 e8 82 1a 30 00 fb 5b <41> 5c 41 5d 41 5e 41 5f c3 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 87
RSP: 0018:ffffc90003a3f918 EFLAGS: 00000282
RAX: 78319ade6024b300 RBX: ffff88801c10bb34 RCX: ffffffff9153fe03
RDX: dffffc0000000000 RSI: ffffffff8a8d22c0 RDI: ffffffff8ae99380
RBP: ffffc90003a3f990 R08: dffffc0000000000 R09: ffffed1017347371
R10: ffffed1017347371 R11: 1ffff11017347370 R12: dffffc0000000000
R13: 1ffff1101734751b R14: ffff8880b9a3a8d8 R15: ffff8880b9a39b80
finish_task_switch+0x140/0x610 kernel/sched/core.c:5024
context_switch kernel/sched/core.c:5149 [inline]
__schedule+0x95f/0xe20 kernel/sched/core.c:6458
schedule+0xeb/0x1b0 kernel/sched/core.c:6530
freezable_schedule include/linux/freezer.h:172 [inline]
futex_wait_queue+0x159/0x330 kernel/futex/waitwake.c:355
futex_wait+0x21b/0x5d0 kernel/futex/waitwake.c:656
do_futex+0x3af/0x490 kernel/futex/syscalls.c:106
__do_sys_futex kernel/futex/syscalls.c:183 [inline]
__se_sys_futex+0x413/0x4a0 kernel/futex/syscalls.c:164
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f4bc5c89109
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4bc6d08218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f4bc5d9bf68 RCX: 00007f4bc5c89109
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4bc5d9bf68
RBP: 00007f4bc5d9bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4bc5d9bf6c
R13: 00007ffcff15920f R14: 00007f4bc6d08300 R15: 0000000000022000
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g249861 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=143632
rcu: rcu_preempt kthread starved for 10502 jiffies! g249861 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
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:I stack:26424 pid: 17 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5146 [inline]
__schedule+0x957/0xe20 kernel/sched/core.c:6458
schedule+0xeb/0x1b0 kernel/sched/core.c:6530
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1935
rcu_gp_fqs_loop+0x2b9/0xfb0 kernel/rcu/tree.c:1999
rcu_gp_kthread+0xa5/0x360 kernel/rcu/tree.c:2187
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 18676 Comm: syz-executor.0 Not tainted 5.19.0-rc3-syzkaller-00048-gde5c208d533a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:do_raw_spin_unlock+0x11/0x8a0 kernel/locking/spinlock_debug.c:138
Code: 85 2c 71 00 e9 1f ff ff ff e8 6b a4 c1 08 66 2e 0f 1f 84 00 00 00 00 00 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 28 49 89 ff <48> bb 00 00 00 00 00 fc ff df 48 8d 57 04 48 89 d0 48 c1 e8 03 48
RSP: 0018:ffffc90000007c10 EFLAGS: 00000082
RAX: 78319ade6024b300 RBX: ffff88807c31f2e8 RCX: ffffc90000007b03
RDX: 0000000000000000 RSI: ffffffff8a8d3440 RDI: ffff88807c31f2e8
RBP: 000000000028f5c2 R08: dffffc0000000000 R09: fffffbfff1c071de
R10: fffffbfff1c071de R11: 1ffffffff1c071dd R12: dffffc0000000000
R13: ffff88807c31f340 R14: ffff88807c31f000 R15: ffff88807c31f2e8
FS: 00007f4bc6d08700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4bc5d9d090 CR3: 000000001db60000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_unlock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_unlock+0x1a/0x40 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:389 [inline]
advance_sched+0x634/0x8c0 net/sched/sch_taprio.c:764
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x50b/0xa60 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x3a6/0xfd0 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0xf9/0x280 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20
RIP: 0010:finish_lock_switch+0x90/0x100 kernel/sched/core.c:4907
Code: 45 31 c9 68 96 39 5e 81 e8 fd 92 09 00 48 83 c4 08 4c 89 ff e8 21 c5 fe ff 66 90 4c 89 ff e8 57 bc d5 08 e8 82 1a 30 00 fb 5b <41> 5c 41 5d 41 5e 41 5f c3 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 87
RSP: 0018:ffffc90003a3f918 EFLAGS: 00000282
RAX: 78319ade6024b300 RBX: ffff88801c10bb34 RCX: ffffffff9153fe03
RDX: dffffc0000000000 RSI: ffffffff8a8d22c0 RDI: ffffffff8ae99380
RBP: ffffc90003a3f990 R08: dffffc0000000000 R09: ffffed1017347371
R10: ffffed1017347371 R11: 1ffff11017347370 R12: dffffc0000000000
R13: 1ffff1101734751b R14: ffff8880b9a3a8d8 R15: ffff8880b9a39b80
finish_task_switch+0x140/0x610 kernel/sched/core.c:5024
context_switch kernel/sched/core.c:5149 [inline]
__schedule+0x95f/0xe20 kernel/sched/core.c:6458
schedule+0xeb/0x1b0 kernel/sched/core.c:6530
freezable_schedule include/linux/freezer.h:172 [inline]
futex_wait_queue+0x159/0x330 kernel/futex/waitwake.c:355
futex_wait+0x21b/0x5d0 kernel/futex/waitwake.c:656
do_futex+0x3af/0x490 kernel/futex/syscalls.c:106
__do_sys_futex kernel/futex/syscalls.c:183 [inline]
__se_sys_futex+0x413/0x4a0 kernel/futex/syscalls.c:164
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f4bc5c89109
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4bc6d08218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f4bc5d9bf68 RCX: 00007f4bc5c89109
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4bc5d9bf68
RBP: 00007f4bc5d9bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4bc5d9bf6c
R13: 00007ffcff15920f R14: 00007f4bc6d08300 R15: 0000000000022000
watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [kworker/1:36:3052]
Modules linked in:
irq event stamp: 1247070
hardirqs last enabled at (1247069): [] asm_sysvec_apic_timer_interrupt+0x1b/0x20
hardirqs last disabled at (1247070): [] sysvec_apic_timer_interrupt+0xa/0xb0 arch/x86/kernel/apic/apic.c:1106
softirqs last enabled at (1198074): [] __irq_exit_rcu+0xec/0x170 kernel/softirq.c:650
softirqs last disabled at (1197961): [] __irq_exit_rcu+0xec/0x170 kernel/softirq.c:650
CPU: 1 PID: 3052 Comm: kworker/1:36 Not tainted 5.19.0-rc3-syzkaller-00048-gde5c208d533a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events fqdir_free_fn
RIP: 0010:csd_lock_wait kernel/smp.c:414 [inline]
RIP: 0010:smp_call_function_single+0x402/0x760 kernel/smp.c:777
Code: 04 2b 84 c0 0f 85 4c 01 00 00 45 8b 26 44 89 e6 83 e6 01 31 ff e8 3e ff 0a 00 41 83 e4 01 75 08 e8 13 fb 0a 00 eb 3f 90 f3 90 <42> 0f b6 04 2b 84 c0 75 10 41 f7 06 01 00 00 00 74 25 e8 f7 fa 0a
RSP: 0018:ffffc90004a1fa40 EFLAGS: 00000293
RAX: ffffffff817cad19 RBX: 1ffff92000943f51 RCX: ffff888027310000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90004a1fb88 R08: ffffffff817cacf2 R09: ffffed1017347591
R10: ffffed1017347591 R11: 1ffff11017347590 R12: 0000000000000001
R13: dffffc0000000000 R14: ffffc90004a1fa88 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000100 CR3: 0000000079be0000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_barrier+0x2e3/0x620 kernel/rcu/tree.c:4157
fqdir_free_fn+0x2f/0x150 net/ipv4/inet_fragment.c:163
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 18676 Comm: syz-executor.0 Not tainted 5.19.0-rc3-syzkaller-00048-gde5c208d533a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:enqueue_hrtimer kernel/time/hrtimer.c:1089 [inline]
RIP: 0010:__run_hrtimer kernel/time/hrtimer.c:1702 [inline]
RIP: 0010:__hrtimer_run_queues+0x624/0xa60 kernel/time/hrtimer.c:1749
Code: 63 00 48 8b 1b 48 83 c3 44 48 89 d8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 9a 02 00 00 44 09 33 48 8b 44 24 60 42 0f b6 04 28 <84> c0 0f 85 a2 02 00 00 41 c6 47 38 01 48 8b 7c 24 48 4c 89 fe e8
RSP: 0018:ffffc90000007d20 EFLAGS: 00000006
RAX: 0000000000000000 RBX: ffff8880b9a2a484 RCX: 0000000000000001
RDX: 0000000000010002 RSI: 0000000000000001 RDI: 0000000000000020
RBP: ffffc90000007e78 R08: ffffffff817755f6 R09: fffffbfff1c071de
R10: fffffbfff1c071de R11: 1ffffffff1c071dd R12: ffff8880b9a2a440
R13: dffffc0000000000 R14: 0000000000000002 R15: ffff88807c31f340
FS: 00007f4bc6d08700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4bc5d9d090 CR3: 000000001db60000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
hrtimer_interrupt+0x3a6/0xfd0 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0xf9/0x280 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20
RIP: 0010:finish_lock_switch+0x90/0x100 kernel/sched/core.c:4907
Code: 45 31 c9 68 96 39 5e 81 e8 fd 92 09 00 48 83 c4 08 4c 89 ff e8 21 c5 fe ff 66 90 4c 89 ff e8 57 bc d5 08 e8 82 1a 30 00 fb 5b <41> 5c 41 5d 41 5e 41 5f c3 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 87
RSP: 0018:ffffc90003a3f918 EFLAGS: 00000282
RAX: 78319ade6024b300 RBX: ffff88801c10bb34 RCX: ffffffff9153fe03
RDX: dffffc0000000000 RSI: ffffffff8a8d22c0 RDI: ffffffff8ae99380
RBP: ffffc90003a3f990 R08: dffffc0000000000 R09: ffffed1017347371
R10: ffffed1017347371 R11: 1ffff11017347370 R12: dffffc0000000000
R13: 1ffff1101734751b R14: ffff8880b9a3a8d8 R15: ffff8880b9a39b80
finish_task_switch+0x140/0x610 kernel/sched/core.c:5024
context_switch kernel/sched/core.c:5149 [inline]
__schedule+0x95f/0xe20 kernel/sched/core.c:6458
schedule+0xeb/0x1b0 kernel/sched/core.c:6530
freezable_schedule include/linux/freezer.h:172 [inline]
futex_wait_queue+0x159/0x330 kernel/futex/waitwake.c:355
futex_wait+0x21b/0x5d0 kernel/futex/waitwake.c:656
do_futex+0x3af/0x490 kernel/futex/syscalls.c:106
__do_sys_futex kernel/futex/syscalls.c:183 [inline]
__se_sys_futex+0x413/0x4a0 kernel/futex/syscalls.c:164
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f4bc5c89109
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4bc6d08218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f4bc5d9bf68 RCX: 00007f4bc5c89109
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4bc5d9bf68
RBP: 00007f4bc5d9bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4bc5d9bf6c
R13: 00007ffcff15920f R14: 00007f4bc6d08300 R15: 0000000000022000
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 4d 89 d6 mov %r10,%r14
3: 4d 29 ce sub %r9,%r14
6: 49 83 fe 10 cmp $0x10,%r14
a: 7f 30 jg 0x3c
c: 4d 85 f6 test %r14,%r14
f: 0f 84 8e 01 00 00 je 0x1a3
15: 4c 89 cb mov %r9,%rbx
18: 4c 29 d3 sub %r10,%rbx
1b: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1)
22: 00 00 00
25: 41 80 39 00 cmpb $0x0,(%r9)
* 29: 0f 85 e7 01 00 00 jne 0x216 <-- trapping instruction
2f: 49 ff c1 inc %r9
32: 48 ff c3 inc %rbx
35: 75 ee jne 0x25
37: e9 67 01 00 00 jmpq 0x1a3
3c: 44 89 cd mov %r9d,%ebp