rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (0 ticks this GP) idle=b74c/1/0x4000000000000000 softirq=72751/72751 fqs=0
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5108/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=126213, q=313 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 28090 Comm: syz-executor.4 Not tainted 6.6.0-next-20231113-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
RIP: 0010:__lock_acquire+0x146/0x5dc0 kernel/locking/lockdep.c:5033
Code: 89 ee 4c 89 f7 44 89 4c 24 08 e8 75 7a 00 00 44 8b 4c 24 08 48 85 c0 48 89 c3 0f 84 84 0e 00 00 48 8b 04 24 48 05 b8 0a 00 00 <48> 89 c2 48 89 44 24 38 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03
RSP: 0018:ffffc90000007ab8 EFLAGS: 00000086
RAX: ffff88805a832878 RBX: ffffffff91f2e430 RCX: 0000000000000000
RDX: 1ffffffff253de1b RSI: 0000000000000000 RDI: ffffffff929ef0d8
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8f1a2117 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff929ef0d0 R15: 0000000000000000
FS: 00007f79030196c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7903019d58 CR3: 0000000027b68000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire kernel/locking/lockdep.c:5753 [inline]
lock_acquire+0x1b1/0x530 kernel/locking/lockdep.c:5718
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x3a/0x50 kernel/locking/spinlock.c:162
debug_object_deactivate lib/debugobjects.c:783 [inline]
debug_object_deactivate+0x113/0x320 lib/debugobjects.c:771
debug_hrtimer_deactivate kernel/time/hrtimer.c:427 [inline]
debug_deactivate kernel/time/hrtimer.c:483 [inline]
__run_hrtimer kernel/time/hrtimer.c:1656 [inline]
__hrtimer_run_queues+0x47a/0xc00 kernel/time/hrtimer.c:1752
hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1065 [inline]
__sysvec_apic_timer_interrupt+0x10c/0x400 arch/x86/kernel/apic/apic.c:1082
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1076
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x70 kernel/locking/spinlock.c:194
Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 86 49 dd f6 48 89 df e8 be c8 dd f6 f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f 01 00 00 00 e8 f5 12 cf f6 65 8b 05 36 b3 77 75 85 c0 74 12 5b
RSP: 0018:ffffc900036f7a40 EFLAGS: 00000246
RAX: 0000000000000006 RBX: ffff888028ec8488 RCX: 1ffffffff1e33dd1
RDX: 0000000000000000 RSI: ffffffff8accbfe0 RDI: ffffffff8b2f2620
RBP: 0000000000000283 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8f1a2117 R11: 0000000000000000 R12: dffffc0000000000
R13: 1973e9f975ff9dd5 R14: 179713a975ff9dd5 R15: ffff888028ec8488
spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
timerfd_clock_was_set+0x164/0x310 fs/timerfd.c:113
clock_was_set+0x67c/0x850 kernel/time/hrtimer.c:982
timekeeping_inject_offset+0x4d1/0x640 kernel/time/timekeeping.c:1395
do_adjtimex+0x373/0xaa0 kernel/time/timekeeping.c:2444
do_clock_adjtime kernel/time/posix-timers.c:1159 [inline]
__do_sys_clock_adjtime+0x173/0x280 kernel/time/posix-timers.c:1171
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x62/0x6a
RIP: 0033:0x7f790227cae9
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:00007f79030190c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007f790239c050 RCX: 00007f790227cae9
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007f79022c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f790239c050 R15: 00007ffed18955f8
task:syz-executor.0 state:R running task stack:23760 pid:5108 tgid:5108 ppid:5098 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0xee5/0x59b0 kernel/sched/core.c:6688
preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6865
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3a/0x40 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
copy_pte_range mm/memory.c:1119 [inline]
copy_pmd_range mm/memory.c:1180 [inline]
copy_pud_range mm/memory.c:1217 [inline]
copy_p4d_range mm/memory.c:1241 [inline]
copy_page_range+0x12ae/0x3c40 mm/memory.c:1339
dup_mmap kernel/fork.c:765 [inline]
dup_mm kernel/fork.c:1709 [inline]
copy_mm kernel/fork.c:1758 [inline]
copy_process+0x5edd/0x9b40 kernel/fork.c:2520
kernel_clone+0xfd/0x940 kernel/fork.c:2925
__do_sys_clone+0xba/0x100 kernel/fork.c:3068
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x62/0x6a
RIP: 0033:0x7fe8a7879b13
RSP: 002b:00007fff4a851478 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe8a7879b13
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 00005555558a3750 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g126213 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=160366
rcu: rcu_preempt kthread starved for 10502 jiffies! g126213 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:28048 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0xee5/0x59b0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0xe5/0x270 kernel/sched/core.c:6778
schedule_timeout+0x156/0x2b0 kernel/time/timer.c:2167
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:1631
rcu_gp_kthread+0x243/0x380 kernel/rcu/tree.c:1830
kthread+0x337/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242