rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
(detected by 1, t=10502 jiffies, g=3253, q=58)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294952444-4294941942), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g3253 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:26816 pid: 15 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1914
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:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
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: 3580 Comm: syz-executor421 Not tainted 5.15.165-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:kasan_check_range+0x1/0x290 mm/kasan/generic.c:188
Code: 01 c6 48 89 c7 e8 9f c5 69 08 31 c0 c3 0f 0b b8 ea ff ff ff c3 0f 0b b8 ea ff ff ff c3 cc cc cc cc cc cc cc cc cc cc cc cc 55 <41> 57 41 56 53 b0 01 48 85 f6 0f 84 9a 01 00 00 48 89 fd 48 01 f5
RSP: 0018:ffffc90002d67a48 EFLAGS: 00000046
RAX: 0000000000000002 RBX: 00000000000000a1 RCX: ffffffff81631a88
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff9070f0d0
RBP: 0000000000000008 R08: dffffc0000000000 R09: fffffbfff20e1e1b
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000100 R15: ffff888078a9a8b0
FS: 00007f5cb4cc36c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5cb4cc2e40 CR3: 000000007daff000 CR4: 00000000003506f0
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:197 [inline]
mark_lock+0x98/0x340 kernel/locking/lockdep.c:4569
mark_usage kernel/locking/lockdep.c:4512 [inline]
__lock_acquire+0xc97/0x1ff0 kernel/locking/lockdep.c:4966
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline]
_raw_spin_lock_irq+0xcf/0x110 kernel/locking/spinlock.c:170
spin_lock_irq include/linux/spinlock.h:388 [inline]
__set_current_blocked+0x11b/0x2f0 kernel/signal.c:3083
__do_sys_rt_sigreturn+0x181/0x250 arch/x86/kernel/signal.c:672
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f5cb4d199d9
Code: 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 90 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 c7 c0 0f 00 00 00 0f 05 <0f> 1f 80 00 00 00 00 48 81 ec 48 01 00 00 49 89 d0 64 48 8b 04 25
RSP: 002b:00007f5cb4cc2c80 EFLAGS: 00000202 ORIG_RAX: 000000000000000f
RAX: ffffffffffffffda RBX: 00007f5cb4d8c308 RCX: 00007f5cb4d199d9
RDX: 00007f5cb4cc2c80 RSI: 00007f5cb4cc2db0 RDI: 0000000000000021
RBP: 00007f5cb4d8c300 R08: 00007f5cb4cc36c0 R09: 00007f5cb4cc36c0
R10: 0000000000000000 R11: 0000000000000202 R12: 00007f5cb4d8c30c
R13: 0000000000000000 R14: 00007ffe9b5796d0 R15: 00007ffe9b5797b8