rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (0 ticks this GP) idle=3774/1/0x4000000000000000 softirq=9774/9774 fqs=0
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6066/2:b..l
rcu: (detected by 1, t=10506 jiffies, g=14089, q=313 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 6078 Comm: syz-executor.3 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:26 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0xc/0x60 kernel/kcov.c:207
Code: c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 48 8b 15 04 db 76 7e <65> 8b 05 05 db 76 7e a9 00 01 ff 00 48 8b 34 24 74 0f f6 c4 01 74
RSP: 0018:ffffc90000007db8 EFLAGS: 00000046
RAX: 0000000000010002 RBX: ffff8880790f9340 RCX: ffffffff8ac37828
RDX: ffff888021a1da00 RSI: ffff8880790f9340 RDI: 0000000000000006
RBP: ffff8880790f9340 R08: 0000000000000006 R09: ffff8880790f9340
R10: ffff8880790f9340 R11: ffffffff8b0f38c0 R12: ffff8880b942c9c0
R13: 0000000000000002 R14: 0000000000000000 R15: ffffffff88e73220
FS: 00007f44bbbff6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020003c80 CR3: 0000000023a1a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
timerqueue_add+0x56/0x330 lib/timerqueue.c:40
enqueue_hrtimer+0x1c9/0x390 kernel/time/hrtimer.c:1098
__run_hrtimer kernel/time/hrtimer.c:1709 [inline]
__hrtimer_run_queues+0xa15/0xc20 kernel/time/hrtimer.c:1756
hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1818
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x10f/0x410 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x90/0xb0 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_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:194
Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 a6 3f 95 f6 48 89 df e8 0e bb 95 f6 f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 01 00 00 00 e8 95 08 87 f6 65 8b 05 e6 d0 2d 75 85 c0 74 16 5b
RSP: 0018:ffffc90003b4fca8 EFLAGS: 00000246
RAX: 0000000000000002 RBX: ffff8880b942c9c0 RCX: 1ffffffff27b4f6f
RDX: 0000000000000000 RSI: ffffffff8b0cb740 RDI: ffffffff8b6e88a0
RBP: 0000000000000286 R08: 0000000000000001 R09: fffffbfff27b4e30
R10: ffffffff93da7187 R11: 0000000000000002 R12: fbff5d465e044e2b
R13: 0000000000000000 R14: 0000001b8ccdcf71 R15: dffffc0000000000
clock_was_set+0x591/0x850 kernel/time/hrtimer.c:973
do_settimeofday64+0x3a6/0x5c0 kernel/time/timekeeping.c:1346
do_sys_settimeofday64+0x1dc/0x260 kernel/time/time.c:195
__do_sys_clock_settime kernel/time/posix-timers.c:1129 [inline]
__se_sys_clock_settime kernel/time/posix-timers.c:1113 [inline]
__x64_sys_clock_settime+0x1bf/0x2a0 kernel/time/posix-timers.c:1113
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f44bc87dda9
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:00007f44bbbff0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3
RAX: ffffffffffffffda RBX: 00007f44bc9ac2c0 RCX: 00007f44bc87dda9
RDX: 0000000000000000 RSI: 0000000020003c80 RDI: 0000000000000000
RBP: 00007f44bc8ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f44bc9ac2c0 R15: 00007ffd4b0cdd38
task:syz-executor.0 state:R running task stack:28016 pid:6066 tgid:6063 ppid:5077 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5c70 kernel/sched/core.c:6736
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7058
irqentry_exit+0x36/0x90 kernel/entry/common.c:348
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lockdep_enabled kernel/locking/lockdep.c:122 [inline]
RIP: 0010:lock_acquire kernel/locking/lockdep.c:5730 [inline]
RIP: 0010:lock_acquire+0x138/0x540 kernel/locking/lockdep.c:5719
Code: 0f 85 1d 01 00 00 65 48 8b 15 14 81 98 7e 48 8d ba d4 0a 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 0f b6 0c 01 <48> 89 f8 83 e0 07 83 c0 03 38 c8 7c 08 84 c9 0f 85 91 03 00 00 8b
RSP: 0000:ffffc90003b0fbc0 EFLAGS: 00000a07
RAX: dffffc0000000000 RBX: 1ffff92000761f7a RCX: 0000000000000000
RDX: ffff888023c18000 RSI: ffffffff8b6e8820 RDI: ffff888023c18ad4
RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff1f3cdf2
R10: ffffffff8f9e6f97 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff8d7b08e0 R15: 0000000000000000
rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
rcu_read_lock include/linux/rcupdate.h:750 [inline]
percpu_ref_tryget_many include/linux/percpu-refcount.h:241 [inline]
percpu_ref_tryget include/linux/percpu-refcount.h:266 [inline]
css_tryget include/linux/cgroup_refcnt.h:45 [inline]
css_tryget include/linux/cgroup_refcnt.h:42 [inline]
get_mem_cgroup_from_mm+0x27e/0x4c0 mm/memcontrol.c:1111
__mem_cgroup_charge+0x1c/0x140 mm/memcontrol.c:7290
mem_cgroup_charge include/linux/memcontrol.h:690 [inline]
do_anonymous_page mm/memory.c:4301 [inline]
do_pte_missing mm/memory.c:3743 [inline]
handle_pte_fault mm/memory.c:5164 [inline]
__handle_mm_fault+0x26d9/0x4920 mm/memory.c:5305
handle_mm_fault+0x476/0xa00 mm/memory.c:5470
do_user_addr_fault+0x426/0x1080 arch/x86/mm/fault.c:1362
handle_page_fault arch/x86/mm/fault.c:1505 [inline]
exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1563
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f7cde029840
RSP: 002b:00007f7cdeec5530 EFLAGS: 00010202
RAX: 0000000000429000 RBX: 00007f7cdeec55d0 RCX: 000000000000001e
RDX: 00000000000003ff RSI: 0000000000001000 RDI: 00007f7cdeec5670
RBP: 000000000000001f R08: 00007f7cd4600000 R09: 0000000000000001
R10: 0000000020014bc2 R11: 0000000000012729 R12: 0000000000000c01
R13: 00007f7cde0ecde0 R14: 0000000000000017 R15: 00007f7cdeec5670
rcu: rcu_preempt kthread timer wakeup didn't happen for 10505 jiffies! g14089 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=7800
rcu: rcu_preempt kthread starved for 10506 jiffies! g14089 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:28144 pid:16 tgid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5c70 kernel/sched/core.c:6736
__schedule_loop kernel/sched/core.c:6813 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6828
schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2572
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:1663
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:1862
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243