rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-...!: (1 GPs behind) idle=75fc/1/0x4000000000000000 softirq=9230/9231 fqs=0
(t=10500 jiffies g=9841 q=55 ncpus=2)
rcu: rcu_preempt kthread timer wakeup didn't happen for 10499 jiffies! g9841 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=1 timer-softirq=6034
rcu: rcu_preempt kthread starved for 10500 jiffies! g9841 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:26680 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1965
rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706
rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
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: 3894 Comm: syz-executor.4 Not tainted 6.1.92-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:lockdep_hardirqs_off+0xbf/0x100 kernel/locking/lockdep.c:4423
Code: 00 eb 17 48 c7 c7 e0 01 ec 8a e8 6c 17 00 00 65 8b 05 a5 6e 77 75 85 c0 74 84 65 48 8b 04 25 28 00 00 00 48 3b 44 24 08 75 31 <48> 83 c4 10 5b 41 5e c3 e8 a4 11 aa f9 85 c0 74 df 83 3d e1 b3 e8
RSP: 0018:ffffc90005067ed0 EFLAGS: 00000046
RAX: 0dba7f1ffb9def00 RBX: ffff88807b030000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8aec01c0 RDI: ffffffff8b3d45e0
RBP: ffffc90005067f48 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 000000000000000f R14: ffffffff8a8abcce R15: 0000000000000000
FS: 00007f45d433b6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f45d4319f00 CR3: 0000000019f93000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__enter_from_user_mode kernel/entry/common.c:22 [inline]
syscall_enter_from_user_mode+0x1a/0x230 kernel/entry/common.c:114
do_syscall_64+0x1e/0xb0 arch/x86/entry/common.c:77
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f45d36403b9
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:00007f45d433abc0 EFLAGS: 00000202 ORIG_RAX: 000000000000000f
RAX: ffffffffffffffda RBX: 00007f45d37b4058 RCX: 00007f45d36403b9
RDX: 00007f45d433abc0 RSI: 00007f45d433acf0 RDI: 0000000000000021
RBP: 00007f45d37b4050 R08: 00007f45d433b6c0 R09: 00007f45d433b6c0
R10: 0000000000000000 R11: 0000000000000202 R12: 00007f45d37b405c
R13: 000000000000006e R14: 00007ffc6d76c490 R15: 00007ffc6d76c578
CPU: 0 PID: 3883 Comm: syz-executor.4 Not tainted 6.1.92-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:finish_task_switch+0x1d3/0x810 kernel/sched/core.c:5124
Code: 37 0b 00 48 83 c4 08 4c 89 f7 e8 98 30 00 00 0f 1f 44 00 00 4c 89 f7 e8 7b 20 36 09 e8 36 26 32 00 fb 49 8d bc 24 f8 15 00 00 <48> 89 f8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df 42 0f b6 04 28
RSP: 0018:ffffc90005047748 EFLAGS: 00000286
RAX: 632edbd036e0b900 RBX: ffff88807ef5d974 RCX: ffffffff91c94103
RDX: dffffc0000000000 RSI: ffffffff8aec01c0 RDI: ffff88802895d178
RBP: ffffc90005047790 R08: dffffc0000000000 R09: ffffed1017307541
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802895bb80
R13: 1ffff110173076eb R14: ffff8880b983aa00 R15: ffff8880b983b758
FS: 00005555565f0480(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc8e8969f00 CR3: 0000000019f93000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
context_switch kernel/sched/core.c:5248 [inline]
__schedule+0x1435/0x4550 kernel/sched/core.c:6558
preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
irqentry_exit+0x53/0x80 kernel/entry/common.c:439
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:schedule+0xac/0x180 kernel/sched/core.c:6636
Code: 89 f7 e8 f7 83 4e f7 49 8b 3e 48 85 ff 74 0a be 01 00 00 00 e8 65 a5 87 f9 4c 89 e3 48 c1 eb 03 eb 0a 49 f7 04 24 08 00 00 00 <74> 39 bf 01 00 00 00 e8 48 c9 ca f6 31 ff e8 f1 b9 ff ff bf 01 00
RSP: 0018:ffffc90005047ad0 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 1ffff1100512b770 RCX: ffffffff8a938926
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88802895bb80
RBP: 1ffff1100512ba5d R08: dffffc0000000000 R09: ffffed100512b771
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802895bb80
R13: ffffc90005047c68 R14: ffff88802895cdf8 R15: dffffc0000000000
futex_wait_queue+0x149/0x1d0 kernel/futex/waitwake.c:355
futex_wait+0x203/0x5c0 kernel/futex/waitwake.c:656
do_futex+0x3b5/0x490 kernel/futex/syscalls.c:106
__do_sys_futex kernel/futex/syscalls.c:183 [inline]
__se_sys_futex+0x3d7/0x460 kernel/futex/syscalls.c:164
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f45d367cf69
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc6d76c658 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 0000000000019542 RCX: 00007f45d367cf69
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f45d37b412c
RBP: 0000000000019574 R08: 0000000000000010 R09: 0000001800000000
R10: 00007ffc6d76c740 R11: 0000000000000246 R12: 00007ffc6d76c740
R13: 00007f45d37b412c R14: 0000000000000032 R15: 00007ffc6d76c760
sched: RT throttling activated