rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 GPs behind) idle=0dc4/1/0x4000000000000000 softirq=13909/13910 fqs=0
(detected by 1, t=10506 jiffies, g=17293, q=108 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4843 Comm: syz-executor.0 Not tainted 6.1.84-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__lock_release kernel/locking/lockdep.c:5367 [inline]
RIP: 0010:lock_release+0x353/0xa20 kernel/locking/lockdep.c:5682
Code: 10 48 81 c3 d0 0a 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 14 48 89 df 4d 89 fc 49 89 d7 e8 43 81 77 00 4c 89 fa 4d 89 e7 <4c> 89 33 44 39 ea 0f 84 4e 02 00 00 ff c2 48 8b 7c 24 10 48 8b 74
RSP: 0018:ffffc90000007b80 EFLAGS: 00000046
RAX: 1ffff110032dcc82 RBX: ffff8880196e6410 RCX: ffffc90000007c03
RDX: 0000000000000001 RSI: ffff8880196e6418 RDI: ffff8880196e6448
RBP: ffffc90000007cb0 R08: dffffc0000000000 R09: fffffbfff1ce6d46
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880196e6448
R13: 0000000000000001 R14: da2e616334457c0f R15: dffffc0000000000
FS: 00007efc6e5b46c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8e90cd56c6 CR3: 00000000595ae000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline]
_raw_spin_unlock_irqrestore+0x75/0x130 kernel/locking/spinlock.c:194
__run_hrtimer kernel/time/hrtimer.c:1682 [inline]
__hrtimer_run_queues+0x4b0/0xe50 kernel/time/hrtimer.c:1750
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline]
RIP: 0010:rcu_is_watching+0x2d/0xb0 kernel/rcu/tree.c:721
Code: 56 53 65 ff 05 5c 2f 8f 7e e8 2f f0 16 09 89 c3 83 f8 08 73 76 49 bf 00 00 00 00 00 fc ff df 4c 8d 34 dd 50 08 b1 8c 4c 89 f0 <48> c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 60 bd 6e 00 48 c7 c3
RSP: 0018:ffffc90006447aa0 EFLAGS: 00000293
RAX: ffffffff8cb10850 RBX: 0000000000000000 RCX: ffffffff816a7a37
RDX: 0000000000000000 RSI: ffffffff8b3d2d00 RDI: ffffffff8b3d2cc0
RBP: ffffc90006447bf0 R08: dffffc0000000000 R09: fffffbfff1ce6d46
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000c88f64
R13: ffffffff8205e07d R14: ffffffff8cb10850 R15: dffffc0000000000
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0xd6/0xa20 kernel/locking/lockdep.c:5673
clock_was_set+0x86e/0x900 kernel/time/hrtimer.c:980
do_settimeofday64+0x673/0x7e0 kernel/time/timekeeping.c:1345
__do_sys_clock_settime kernel/time/posix-timers.c:1119 [inline]
__se_sys_clock_settime kernel/time/posix-timers.c:1107 [inline]
__x64_sys_clock_settime+0x232/0x270 kernel/time/posix-timers.c:1107
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7efc6d87de69
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:00007efc6e5b40c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3
RAX: ffffffffffffffda RBX: 00007efc6d9ac120 RCX: 00007efc6d87de69
RDX: 0000000000000000 RSI: 0000000020003c80 RDI: 0000000000000000
RBP: 00007efc6d8ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007efc6d9ac120 R15: 00007ffcb89076c8
rcu: rcu_preempt kthread starved for 10506 jiffies! g17293 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R running task stack:27032 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+0x2d2/0x1120 kernel/rcu/tree.c:1706
rcu_gp_kthread+0xa3/0x3a0 kernel/rcu/tree.c:1905
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:307
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 4837 Comm: syz-executor.0 Not tainted 6.1.84-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:csd_lock_wait kernel/smp.c:424 [inline]
RIP: 0010:smp_call_function_many_cond+0x1fb0/0x3460 kernel/smp.c:998
Code: 2f 44 89 ee 83 e6 01 31 ff e8 ec 42 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 0a e8 77 3f 0b 00 e9 1b ff ff ff f3 90 <42> 0f b6 04 2b 84 c0 75 14 41 f7 07 01 00 00 00 0f 84 fe fe ff ff
RSP: 0000:ffffc90003e4f560 EFLAGS: 00000293
RAX: ffffffff817f479b RBX: 1ffff1101730859d RCX: ffff88802283bb80
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90003e4f940 R08: ffffffff817f4764 R09: fffffbfff2093045
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000800000000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880b9842ce8
FS: 00005555556a7480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200013c0 CR3: 00000000595ae000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1166
__flush_tlb_multi arch/x86/include/asm/paravirt.h:87 [inline]
flush_tlb_multi arch/x86/mm/tlb.c:924 [inline]
flush_tlb_mm_range+0x353/0x590 arch/x86/mm/tlb.c:1010
flush_tlb_page arch/x86/include/asm/tlbflush.h:240 [inline]
ptep_clear_flush+0x116/0x160 mm/pgtable-generic.c:98
wp_page_copy+0xc51/0x18c0 mm/memory.c:3202
handle_pte_fault mm/memory.c:5031 [inline]
__handle_mm_fault mm/memory.c:5155 [inline]
handle_mm_fault+0x2525/0x5340 mm/memory.c:5276
do_user_addr_fault arch/x86/mm/fault.c:1371 [inline]
handle_page_fault arch/x86/mm/fault.c:1462 [inline]
exc_page_fault+0x26f/0x660 arch/x86/mm/fault.c:1518
asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7efc6d85eefc
Code: 7c 10 8a 0e 74 0a 0f b7 74 16 fe 66 89 74 17 fe 88 0f c3 8b 4c 16 fc 8b 36 89 4c 17 fc 89 37 c3 c5 fa 6f 06 c5 fa 6f 4c 16 f0 fa 7f 07 c5 fa 7f 4c 17 f0 c3 66 0f 1f 84 00 00 00 00 00 48 8b
RSP: 002b:00007ffcb89077a8 EFLAGS: 00010202
RAX: 00000000200013c0 RBX: 00007ffcb89078b8 RCX: 00007efc6d400000
RDX: 000000000000001e RSI: 00007efc6d401048 RDI: 00000000200013c0
RBP: 0000000000000048 R08: 00007efc6d800000 R09: 00007efc6d9ac1fc
R10: 0000000000000000 R11: 0000000000000246 R12: 00007efc6d401028
R13: fffffffffffffffe R14: 00007efc6d400000 R15: 00007efc6d401030