rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (0 ticks this GP) idle=c09/1/0x4000000000000000 softirq=70072/70072 fqs=0
(detected by 1, t=10502 jiffies, g=109321, q=88)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 20040 Comm: syz-executor.0 Not tainted 5.17.0-rc2-syzkaller-00060-g88808fbbead4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:lookup_chain_cache kernel/locking/lockdep.c:3695 [inline]
RIP: 0010:lookup_chain_cache_add kernel/locking/lockdep.c:3714 [inline]
RIP: 0010:validate_chain+0x1c3/0x8240 kernel/locking/lockdep.c:3769
Code: 83 c3 f8 75 15 eb 5a 48 8b 03 48 8d 58 f8 48 85 c0 48 0f 44 d8 48 85 db 74 47 4c 8d 7b 18 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 <74> 08 4c 89 ff e8 53 74 69 00 49 8b 07 4c 39 f0 74 1c 48 83 c3 08
RSP: 0018:ffffc90000007620 EFLAGS: 00000046
RAX: 1ffffffff1f7374f RBX: ffffffff8fb9ba60 RCX: ffffffff8167c648
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8ffdfe20
RBP: ffffc90000007930 R08: dffffc0000000000 R09: fffffbfff1ffbfc5
R10: fffffbfff1ffbfc5 R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff92000000ee4 R14: 66be3427081b2437 R15: ffffffff8fb9ba78
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb94a732090 CR3: 0000000027c18000 CR4: 00000000003506f0
Call Trace:
__lock_acquire+0x1382/0x2b00 kernel/locking/lockdep.c:5027
lock_acquire+0x19f/0x4d0 kernel/locking/lockdep.c:5639
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
debug_object_deactivate+0x61/0x400 lib/debugobjects.c:735
debug_hrtimer_deactivate kernel/time/hrtimer.c:425 [inline]
debug_deactivate kernel/time/hrtimer.c:481 [inline]
__run_hrtimer kernel/time/hrtimer.c:1653 [inline]
__hrtimer_run_queues+0x2f9/0xa60 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x3b3/0x1040 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0xf9/0x270 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: 11 41 fd ff 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 4e e9 51 f7 48 89 df e8 66 9a 53 f7 e8 91 27 77 f7 fb bf 01 00 00 00 06 ea 45 f7 65 8b 05 67 46 ed 75 85 c0 74 02 5b c3 e8 0c 30 eb
RSP: 0018:ffffc90003f0fce8 EFLAGS: 00000282
RAX: cf65ecdcf1136d00 RBX: ffffffff8cb43ee0 RCX: ffffffff90bf7803
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff88807e6d8118 R08: ffffffff818c50d0 R09: fffffbfff19687dd
R10: fffffbfff19687dd R11: 0000000000000000 R12: ffff88801d53ba00
R13: dffffc0000000000 R14: 1ffff11003aa7745 R15: ffff88801d53ba2c
spin_unlock_irq include/linux/spinlock.h:399 [inline]
cgroup_exit+0x3e6/0x800 kernel/cgroup/cgroup.c:6409
do_exit+0x653/0x2140 kernel/exit.c:818
do_group_exit+0x2af/0x2b0 kernel/exit.c:935
__do_sys_exit_group+0x13/0x20 kernel/exit.c:946
__se_sys_exit_group+0x10/0x10 kernel/exit.c:944
__x64_sys_exit_group+0x37/0x40 kernel/exit.c:944
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fb94a61e059
Code: Unable to access opcode bytes at RIP 0x7fb94a61e02f.
RSP: 002b:00007ffe97654f38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007fb94a61e059
RDX: 00007fb94a5d0c9b RSI: ffffffffffffffb8 RDI: 0000000000000000
RBP: 0000000000000000 R08: 00007fb94a7351f0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffe97655020
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g109321 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=39939
rcu: rcu_preempt kthread starved for 10502 jiffies! g109321 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:26480 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0x926/0x1080 kernel/sched/core.c:6295
schedule+0x12b/0x1f0 kernel/sched/core.c:6368
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1881
rcu_gp_fqs_loop+0x1fd/0x770 kernel/rcu/tree.c:1963
rcu_gp_kthread+0xa5/0x350 kernel/rcu/tree.c:2136
kthread+0x2a3/0x2d0 kernel/kthread.c:377
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: 20040 Comm: syz-executor.0 Not tainted 5.17.0-rc2-syzkaller-00060-g88808fbbead4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_acquire+0x4b0/0x2b00 kernel/locking/lockdep.c:4967
Code: 83 e5 03 41 c1 e5 10 8b 4c 24 70 83 e1 01 c1 e1 12 31 d2 83 7c 24 54 00 0f 95 c2 c1 e2 13 8b 45 20 c1 e0 14 45 09 c5 41 09 d5 <41> 09 c5 41 09 cd 45 09 f5 41 09 dd 48 8b 44 24 38 8a 04 30 84 c0
RSP: 0018:ffffc90000007920 EFLAGS: 00000006
RAX: 0000000000000000 RBX: 0000000000004000 RCX: 0000000000040000
RDX: 0000000000080000 RSI: dffffc0000000000 RDI: ffff88801d53ba00
RBP: ffffc90000007a70 R08: 0000000000000000 R09: 0000000000000001
R10: fffffbfff1c01546 R11: 0000000000000000 R12: ffff88801d53c444
R13: 0000000000080000 R14: 0000000000000000 R15: ffff88801d53c4a0
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb94a732090 CR3: 0000000027c18000 CR4: 00000000003506f0
Call Trace:
lock_acquire+0x19f/0x4d0 kernel/locking/lockdep.c:5639
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
debug_object_activate+0x97/0x6a0 lib/debugobjects.c:661
debug_hrtimer_activate kernel/time/hrtimer.c:420 [inline]
debug_activate kernel/time/hrtimer.c:475 [inline]
enqueue_hrtimer kernel/time/hrtimer.c:1084 [inline]
__run_hrtimer kernel/time/hrtimer.c:1702 [inline]
__hrtimer_run_queues+0x594/0xa60 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x3b3/0x1040 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0xf9/0x270 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: 11 41 fd ff 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 4e e9 51 f7 48 89 df e8 66 9a 53 f7 e8 91 27 77 f7 fb bf 01 00 00 00 06 ea 45 f7 65 8b 05 67 46 ed 75 85 c0 74 02 5b c3 e8 0c 30 eb
RSP: 0018:ffffc90003f0fce8 EFLAGS: 00000282
RAX: cf65ecdcf1136d00 RBX: ffffffff8cb43ee0 RCX: ffffffff90bf7803
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff88807e6d8118 R08: ffffffff818c50d0 R09: fffffbfff19687dd
R10: fffffbfff19687dd R11: 0000000000000000 R12: ffff88801d53ba00
R13: dffffc0000000000 R14: 1ffff11003aa7745 R15: ffff88801d53ba2c
spin_unlock_irq include/linux/spinlock.h:399 [inline]
cgroup_exit+0x3e6/0x800 kernel/cgroup/cgroup.c:6409
do_exit+0x653/0x2140 kernel/exit.c:818
do_group_exit+0x2af/0x2b0 kernel/exit.c:935
__do_sys_exit_group+0x13/0x20 kernel/exit.c:946
__se_sys_exit_group+0x10/0x10 kernel/exit.c:944
__x64_sys_exit_group+0x37/0x40 kernel/exit.c:944
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fb94a61e059
Code: Unable to access opcode bytes at RIP 0x7fb94a61e02f.
RSP: 002b:00007ffe97654f38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007fb94a61e059
RDX: 00007fb94a5d0c9b RSI: ffffffffffffffb8 RDI: 0000000000000000
RBP: 0000000000000000 R08: 00007fb94a7351f0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffe97655020
----------------
Code disassembly (best guess):
0: 83 c3 f8 add $0xfffffff8,%ebx
3: 75 15 jne 0x1a
5: eb 5a jmp 0x61
7: 48 8b 03 mov (%rbx),%rax
a: 48 8d 58 f8 lea -0x8(%rax),%rbx
e: 48 85 c0 test %rax,%rax
11: 48 0f 44 d8 cmove %rax,%rbx
15: 48 85 db test %rbx,%rbx
18: 74 47 je 0x61
1a: 4c 8d 7b 18 lea 0x18(%rbx),%r15
1e: 4c 89 f8 mov %r15,%rax
21: 48 c1 e8 03 shr $0x3,%rax
25: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1)
* 2a: 74 08 je 0x34 <-- trapping instruction
2c: 4c 89 ff mov %r15,%rdi
2f: e8 53 74 69 00 callq 0x697487
34: 49 8b 07 mov (%r15),%rax
37: 4c 39 f0 cmp %r14,%rax
3a: 74 1c je 0x58
3c: 48 83 c3 08 add $0x8,%rbx