rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5080/3:b..l
rcu: (detected by 1, t=10503 jiffies, g=8873, q=11 ncpus=2)
task:syz-executor315 state:R running task stack:21840 pid:5080 tgid:5080 ppid:5077 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7058
irqentry_exit+0x5e/0x90 kernel/entry/common.c:348
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:security_task_kill+0x60/0xb0 security/security.c:3505
Code: c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 88 16 9f fd 48 8b 1b 48 85 db 74 3b 48 8d 6b 18 48 89 e8 48 c1 e8 03 42 80 3c 30 00 <74> 08 48 89 ef e8 66 16 9f fd 4c 8b 5d 00 4c 89 ef 4c 89 e6 44 89
RSP: 0018:ffffc90004387c60 EFLAGS: 00000246
RAX: 1ffffffff1b62958 RBX: ffffffff8db14aa8 RCX: ffff8880110c0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffffff8db14ac0 R08: ffffffff84629d6f R09: 1ffff110051ad8a0
R10: dffffc0000000000 R11: ffffed10051ad8a1 R12: ffffc90004387e40
R13: ffff88802a8a8000 R14: dffffc0000000000 R15: 0000000000000009
group_send_sig_info+0x136/0x310 kernel/signal.c:1449
kill_pid_info_type+0xfa/0x1f0 kernel/signal.c:1493
kill_pid_info kernel/signal.c:1507 [inline]
kill_proc_info+0xd6/0x180 kernel/signal.c:1514
kill_something_info kernel/signal.c:1611 [inline]
__do_sys_kill kernel/signal.c:3828 [inline]
__se_sys_kill+0x1e8/0x5d0 kernel/signal.c:3822
do_syscall_64+0xfd/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fcdc7df3667
RSP: 002b:00007ffd57a2e6f8 EFLAGS: 00000217 ORIG_RAX: 000000000000003e
RAX: ffffffffffffffda RBX: 0000000000000064 RCX: 00007fcdc7df3667
RDX: 00000000000f1978 RSI: 0000000000000009 RDI: 000000000000001d
RBP: 000000000000001d R08: 0000000000000010 R09: 00007fcdc7ddc0b0
R10: 00007fcdc7ddc080 R11: 0000000000000217 R12: 00007ffd57a2e888
R13: 00007ffd57a2e888 R14: 00007ffd57a2e8e0 R15: 00007ffd57a2e8d0
rcu: rcu_preempt kthread starved for 10535 jiffies! g8873 f0x0 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:24720 pid:16 tgid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
__schedule_loop kernel/sched/core.c:6813 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6828
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2572
rcu_gp_fqs_loop+0x2df/0x1370 kernel/rcu/tree.c:1663
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1862
kthread+0x2f2/0x390 kernel/kthread.c:388
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
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: 5288 Comm: syz-executor315 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline]
RIP: 0010:static_key_false include/linux/jump_label.h:207 [inline]
RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:162 [inline]
RIP: 0010:wrmsr arch/x86/include/asm/msr.h:269 [inline]
RIP: 0010:native_apic_msr_write+0x39/0x50 arch/x86/include/asm/apic.h:207
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 e9 70 28 40 0a f3 0f 1e fa 89 f6 31 d2 e9 93 f9 a0 03 0f 1f
RSP: 0018:ffffc90000007e68 EFLAGS: 00000046
RAX: 0000000000063ceb RBX: 0000000000000020 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 0000000000063ceb RDI: 0000000000000838
RBP: 0000000000063ceb R08: ffffffff8185b6f9 R09: 1ffffffff1f0e74d
R10: dffffc0000000000 R11: ffffffff813ded90 R12: 000000000063cec9
R13: dffffc0000000000 R14: 000000000ffffca5 R15: ffff8880b9428340
FS: 000055556ab8f3c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcdc7eac174 CR3: 0000000051ddc000 CR4: 0000000000350ef0
Call Trace:
apic_write arch/x86/include/asm/apic.h:408 [inline]
lapic_next_event+0x11/0x20 arch/x86/kernel/apic/apic.c:415
clockevents_program_event+0x1c3/0x350 kernel/time/clockevents.c:334
hrtimer_interrupt+0x54a/0x990 kernel/time/hrtimer.c:1831
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x109/0x3a0 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:202
Code: 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 0a b4 f2 f5 48 89 df e8 c2 f3 f3 f5 e8 1d 19 1d f6 fb bf 01 00 00 00 52 e0 e5 f5 65 8b 05 a3 c4 84 74 85 c0 74 06 5b e9 71 40 00 00
RSP: 0018:ffffc9000899fc70 EFLAGS: 00000282
RAX: 94894e988a867700 RBX: ffff888029542500 RCX: ffffffff944dd603
RDX: dffffc0000000000 RSI: ffffffff8baac1e0 RDI: 0000000000000001
RBP: ffffc9000899fdb0 R08: ffffffff8f873a6f R09: 1ffffffff1f0e74d
R10: dffffc0000000000 R11: fffffbfff1f0e74e R12: 1ffff110052a8533
R13: 000000001c000004 R14: 0000000000000021 R15: ffff888029542998
spin_unlock_irq include/linux/spinlock.h:401 [inline]
get_signal+0x156e/0x1850 kernel/signal.c:2910
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop kernel/entry/common.c:105 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline]
syscall_exit_to_user_mode+0xc9/0x360 kernel/entry/common.c:212
do_syscall_64+0x10a/0x240 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fcdc7e20e79
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 18 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:00007ffd57a2e868 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007fcdc7e20e79
RDX: 000000002006b000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000030ddc
R13: 00007ffd57a2e888 R14: 00007ffd57a2e8e0 R15: 00007ffd57a2e8d0
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.560 msecs
sched: RT throttling activated