rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (0 ticks this GP) idle=ed3/1/0x4000000000000000 softirq=24773/24773 fqs=0
(detected by 0, t=10506 jiffies, g=32081, q=181)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 9267 Comm: syz-executor.0 Not tainted 5.18.0-rc3-syzkaller-00190-gc00c5e1d157b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:hlock_class kernel/locking/lockdep.c:197 [inline]
RIP: 0010:__lock_acquire+0x145a/0x56c0 kernel/locking/lockdep.c:5025
Code: f8 66 81 e3 ff 1f 0f b7 db be 08 00 00 00 48 89 d8 48 c1 f8 06 48 8d 3c c5 00 b9 05 90 e8 0e e0 66 00 48 0f a3 1d 76 3a a9 0e <0f> 83 2c 06 00 00 48 8d 1c 5b 48 c1 e3 06 48 81 c3 20 bd 05 90 48
RSP: 0018:ffffc90000ff8af0 EFLAGS: 00000047
RAX: 0000000000000001 RBX: 000000000000005b RCX: ffffffff815c7e82
RDX: fffffbfff200b722 RSI: 0000000000000008 RDI: ffffffff9005b908
RBP: ffff8880303f2c6a R08: 0000000000000000 R09: ffffffff9005b90f
R10: fffffbfff200b721 R11: 0000000000000001 R12: ffff8880303f2c48
R13: ffff8880303f21c0 R14: 0000000000000000 R15: 221e6d18987de8af
FS: 00005555557a7400(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e221000 CR3: 0000000023eae000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire kernel/locking/lockdep.c:5641 [inline]
lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5606
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162
debug_object_deactivate lib/debugobjects.c:735 [inline]
debug_object_deactivate+0x101/0x300 lib/debugobjects.c:723
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+0x3f8/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:finish_task_switch.isra.0+0x323/0xb80 kernel/sched/core.c:4953
Code: c3 a5 18 08 85 c0 75 02 0f 0b 48 85 db 0f 85 25 01 00 00 4c 89 f7 e8 fc f7 ff ff e8 a7 c7 2d 00 fb 65 48 8b 1c 25 00 70 02 00 <48> 8d bb 80 15 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1
RSP: 0018:ffffc90005d17a00 EFLAGS: 00000206
RAX: 00000000000006db RBX: ffff8880303f21c0 RCX: 1ffffffff1b6ff11
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90005d17a48 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff817eae28 R11: 0000000000000001 R12: ffff8880b9d3add8
R13: ffff88802b59e100 R14: ffff8880b9d3a080 R15: ffff8880b9d3aab8
context_switch kernel/sched/core.c:5076 [inline]
__schedule+0xaa2/0x4cc0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
freezable_schedule include/linux/freezer.h:172 [inline]
futex_wait_queue+0x144/0x3b0 kernel/futex/waitwake.c:355
futex_wait+0x2c9/0x670 kernel/futex/waitwake.c:656
do_futex+0x1af/0x300 kernel/futex/syscalls.c:106
__do_sys_futex kernel/futex/syscalls.c:183 [inline]
__se_sys_futex kernel/futex/syscalls.c:164 [inline]
__x64_sys_futex+0x1b0/0x4a0 kernel/futex/syscalls.c:164
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f1edfe890e9
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:00007ffe42ac92b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f1edff9bf6c RCX: 00007f1edfe890e9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f1edff9bf6c
RBP: 00007f1edff9bf60 R08: 00007ffe42b20080 R09: 0000000000000000
R10: 00007ffe42ac93a0 R11: 0000000000000246 R12: 0000000000054c60
R13: 00007ffe42ac93a0 R14: 00007ffe42ac93c0 R15: 0000000000000032
rcu: rcu_preempt kthread timer wakeup didn't happen for 10505 jiffies! g32081 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=1 timer-softirq=21893
rcu: rcu_preempt kthread starved for 10506 jiffies! g32081 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:28080 pid: 16 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0xa9a/0x4cc0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1884
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1971
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2144
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 9267 Comm: syz-executor.0 Not tainted 5.18.0-rc3-syzkaller-00190-gc00c5e1d157b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:write_comp_data kernel/kcov.c:221 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x15/0x80 kernel/kcov.c:273
Code: 00 48 89 4c 38 f0 4e 89 54 c8 20 48 89 10 c3 66 0f 1f 44 00 00 53 41 89 fb 41 89 f1 bf 03 00 00 00 65 48 8b 0c 25 00 70 02 00 <48> 89 ce 4c 8b 54 24 08 e8 ae f7 ff ff 84 c0 74 51 48 8b 81 88 15
RSP: 0018:ffffc90000ff8db8 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffff8880303f21c0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003
RBP: 0000000140000002 R08: 0000000000000000 R09: 0000000000000001
R10: fffffbfff200b720 R11: 0000000000000000 R12: ffff888016938b00
R13: 17a920dcaf5241b9 R14: ffff888016938b20 R15: 17a920dcaf5241b9
FS: 00005555557a7400(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e221000 CR3: 0000000023eae000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_read_lock include/linux/rcupdate.h:695 [inline]
advance_sched+0x4b5/0x9a0 net/sched/sch_taprio.c:768
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:finish_task_switch.isra.0+0x323/0xb80 kernel/sched/core.c:4953
Code: c3 a5 18 08 85 c0 75 02 0f 0b 48 85 db 0f 85 25 01 00 00 4c 89 f7 e8 fc f7 ff ff e8 a7 c7 2d 00 fb 65 48 8b 1c 25 00 70 02 00 <48> 8d bb 80 15 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1
RSP: 0018:ffffc90005d17a00 EFLAGS: 00000206
RAX: 00000000000006db RBX: ffff8880303f21c0 RCX: 1ffffffff1b6ff11
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90005d17a48 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff817eae28 R11: 0000000000000001 R12: ffff8880b9d3add8
R13: ffff88802b59e100 R14: ffff8880b9d3a080 R15: ffff8880b9d3aab8
context_switch kernel/sched/core.c:5076 [inline]
__schedule+0xaa2/0x4cc0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
freezable_schedule include/linux/freezer.h:172 [inline]
futex_wait_queue+0x144/0x3b0 kernel/futex/waitwake.c:355
futex_wait+0x2c9/0x670 kernel/futex/waitwake.c:656
do_futex+0x1af/0x300 kernel/futex/syscalls.c:106
__do_sys_futex kernel/futex/syscalls.c:183 [inline]
__se_sys_futex kernel/futex/syscalls.c:164 [inline]
__x64_sys_futex+0x1b0/0x4a0 kernel/futex/syscalls.c:164
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f1edfe890e9
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:00007ffe42ac92b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f1edff9bf6c RCX: 00007f1edfe890e9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f1edff9bf6c
RBP: 00007f1edff9bf60 R08: 00007ffe42b20080 R09: 0000000000000000
R10: 00007ffe42ac93a0 R11: 0000000000000246 R12: 0000000000054c60
R13: 00007ffe42ac93a0 R14: 00007ffe42ac93c0 R15: 0000000000000032
----------------
Code disassembly (best guess):
0: f8 clc
1: 66 81 e3 ff 1f and $0x1fff,%bx
6: 0f b7 db movzwl %bx,%ebx
9: be 08 00 00 00 mov $0x8,%esi
e: 48 89 d8 mov %rbx,%rax
11: 48 c1 f8 06 sar $0x6,%rax
15: 48 8d 3c c5 00 b9 05 lea -0x6ffa4700(,%rax,8),%rdi
1c: 90
1d: e8 0e e0 66 00 callq 0x66e030
22: 48 0f a3 1d 76 3a a9 bt %rbx,0xea93a76(%rip) # 0xea93aa0
29: 0e
* 2a: 0f 83 2c 06 00 00 jae 0x65c <-- trapping instruction
30: 48 8d 1c 5b lea (%rbx,%rbx,2),%rbx
34: 48 c1 e3 06 shl $0x6,%rbx
38: 48 81 c3 20 bd 05 90 add $0xffffffff9005bd20,%rbx
3f: 48 rex.W