rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
(detected by 1, t=10502 jiffies, g=137521, q=149 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4295087959-4295077457), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g137521 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R running task stack:28248 pid: 16 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5146 [inline]
__schedule+0xa00/0x4b50 kernel/sched/core.c:6458
schedule+0xd2/0x1f0 kernel/sched/core.c:6530
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1935
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1999
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2187
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
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: 25907 Comm: syz-executor.2 Not tainted 5.19.0-rc5-syzkaller-00187-ge8a4e1c1bb69 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
RIP: 0010:__kasan_check_read+0x0/0x10 mm/kasan/shadow.c:31
Code: 39 c7 73 0b 0f 0b 48 83 c4 60 5b 5d 41 5c c3 48 05 00 80 00 00 48 89 fb 48 39 c7 0f 82 65 7f 6d 07 eb e1 cc cc cc cc cc cc cc <48> 8b 0c 24 89 f6 31 d2 e9 b3 fa ff ff 0f 1f 00 48 8b 0c 24 89 f6
RSP: 0018:ffffc90000007948 EFLAGS: 00000056
RAX: 0000000000000000 RBX: 1ffff92000000f31 RCX: 0000000000000008
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff90680900
RBP: 0000000000000100 R08: 0000000000000000 R09: ffffffff90680907
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880252a4588
R13: 0000000000000008 R14: 0000000000000000 R15: ffff8880252a45a8
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000180 CR3: 0000000035389000 CR4: 0000000000350ef0
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]
mark_lock.part.0+0xee/0x1910 kernel/locking/lockdep.c:4610
mark_lock kernel/locking/lockdep.c:4596 [inline]
mark_usage kernel/locking/lockdep.c:4553 [inline]
__lock_acquire+0x8ab/0x5660 kernel/locking/lockdep.c:5007
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__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_activate+0x12e/0x3e0 lib/debugobjects.c:658
debug_hrtimer_activate kernel/time/hrtimer.c:420 [inline]
debug_activate kernel/time/hrtimer.c:475 [inline]
enqueue_hrtimer+0x27/0x3e0 kernel/time/hrtimer.c:1084
__run_hrtimer kernel/time/hrtimer.c:1702 [inline]
__hrtimer_run_queues+0xb02/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:stack_not_used include/linux/sched/task_stack.h:107 [inline]
RIP: 0010:check_stack_usage kernel/exit.c:719 [inline]
RIP: 0010:do_exit+0x184b/0x2a00 kernel/exit.c:839
Code: c1 ea 03 80 3c 02 00 0f 85 7b 0e 00 00 49 bd 00 00 00 00 00 fc ff df 4c 8b 63 20 4c 89 e3 e8 4c 67 32 00 48 83 c3 08 48 89 d8 <48> c1 e8 03 42 80 3c 28 00 0f 85 3a 0c 00 00 48 8b 2b 31 ff 48 89
RSP: 0018:ffffc9000370fe10 EFLAGS: 00000292
RAX: ffffc9000370b0b0 RBX: ffffc9000370b0b0 RCX: 0000000000000000
RDX: ffff8880252a3b00 RSI: ffffffff8147ff44 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffffc90003708000
R13: dffffc0000000000 R14: ffff8880252a3b00 R15: ffffc9000370fe80
do_group_exit+0xd2/0x2f0 kernel/exit.c:925
__do_sys_exit_group kernel/exit.c:936 [inline]
__se_sys_exit_group kernel/exit.c:934 [inline]
__x64_sys_exit_group+0x3a/0x50 kernel/exit.c:934
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+0x46/0xb0
RIP: 0033:0x7f119d489109
Code: Unable to access opcode bytes at RIP 0x7f119d4890df.
RSP: 002b:00007ffc78470058 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007f119d489109
RDX: 00007f119d43bd4b RSI: ffffffffffffffb8 RDI: 0000000000000000
RBP: 0000000000000000 R08: 00007f119d5a0160 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffc78470140
----------------
Code disassembly (best guess):
0: 39 c7 cmp %eax,%edi
2: 73 0b jae 0xf
4: 0f 0b ud2
6: 48 83 c4 60 add $0x60,%rsp
a: 5b pop %rbx
b: 5d pop %rbp
c: 41 5c pop %r12
e: c3 retq
f: 48 05 00 80 00 00 add $0x8000,%rax
15: 48 89 fb mov %rdi,%rbx
18: 48 39 c7 cmp %rax,%rdi
1b: 0f 82 65 7f 6d 07 jb 0x76d7f86
21: eb e1 jmp 0x4
23: cc int3
24: cc int3
25: cc int3
26: cc int3
27: cc int3
28: cc int3
29: cc int3
* 2a: 48 8b 0c 24 mov (%rsp),%rcx <-- trapping instruction
2e: 89 f6 mov %esi,%esi
30: 31 d2 xor %edx,%edx
32: e9 b3 fa ff ff jmpq 0xfffffaea
37: 0f 1f 00 nopl (%rax)
3a: 48 8b 0c 24 mov (%rsp),%rcx
3e: 89 f6 mov %esi,%esi