rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 GPs behind) idle=da44/1/0x4000000000000000 softirq=148139/148142 fqs=5
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P7685/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=235369, q=27046 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 20007 Comm: kworker/0:1 Not tainted 6.5.0-rc3-syzkaller-00700-g64a37272fa5f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Workqueue: events_power_efficient gc_worker
RIP: 0010:__lock_acquire+0x90/0x5de0 kernel/locking/lockdep.c:5000
Code: 00 68 06 16 8c 48 89 44 24 20 48 c7 84 24 a0 00 00 00 80 24 67 81 c7 02 f1 f1 f1 f1 c7 42 04 f1 f1 04 f2 c7 42 08 00 f3 f3 f3 <65> 48 8b 14 25 28 00 00 00 48 89 94 24 08 01 00 00 31 d2 48 c7 c2
RSP: 0018:ffffc90000007b20 EFLAGS: 00000082
RAX: 0000000000000000 RBX: 1ffff92000000f94 RCX: dffffc0000000000
RDX: fffff52000000f76 RSI: 0000000000000000 RDI: ffff888047c33300
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000001
R10: ffff888047c33300 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005602e7c8c680 CR3: 000000000c776000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire kernel/locking/lockdep.c:5761 [inline]
lock_acquire+0x1ae/0x510 kernel/locking/lockdep.c:5726
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:351 [inline]
advance_sched+0xd5/0xc60 net/sched/sch_taprio.c:935
__run_hrtimer kernel/time/hrtimer.c:1688 [inline]
__hrtimer_run_queues+0x203/0xc10 kernel/time/hrtimer.c:1752
hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1098 [inline]
__sysvec_apic_timer_interrupt+0x14a/0x430 arch/x86/kernel/apic/apic.c:1115
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1109
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:lock_acquire+0x1ef/0x510 kernel/locking/lockdep.c:5729
Code: c1 05 d5 f1 9a 7e 83 f8 01 0f 85 b0 02 00 00 9c 58 f6 c4 02 0f 85 9b 02 00 00 48 85 ed 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc9000620fb00 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff92000c41f62 RCX: 0000000000000001
RDX: 1ffff1100857b8c8 RSI: ffffffff8a6c7b80 RDI: ffffffff8ac812e0
RBP: 0000000000000200 R08: 0000000000000000 R09: fffffbfff230a7d0
R10: ffffffff91853e87 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff8c9a6700 R15: 0000000000000000
rcu_lock_acquire include/linux/rcupdate.h:303 [inline]
rcu_read_lock include/linux/rcupdate.h:749 [inline]
gc_worker+0x24f/0x17f0 net/netfilter/nf_conntrack_core.c:1488
process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2597
worker_thread+0x687/0x1110 kernel/workqueue.c:2748
kthread+0x33a/0x430 kernel/kthread.c:389
ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
task:udevd state:R running task stack:26912 pid:7685 ppid:4480 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0xee1/0x59f0 kernel/sched/core.c:6710
preempt_schedule_irq+0x52/0x90 kernel/sched/core.c:7022
irqentry_exit+0x35/0x80 kernel/entry/common.c:433
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__preempt_count_add arch/x86/include/asm/preempt.h:80 [inline]
RIP: 0010:rcu_is_watching+0x6/0xb0 kernel/rcu/tree.c:694
Code: 00 00 00 00 f3 0f 1e fa 48 c7 c7 20 0d 6e 8a e8 a0 99 c4 08 65 8a 05 d5 92 94 7e 0f b6 c0 c3 0f 1f 44 00 00 f3 0f 1e fa 55 53 <65> ff 05 1b 78 94 7e e8 5e 99 c4 08 48 c7 c3 e8 6c 03 00 83 f8 07
RSP: 0018:ffffc90003e07620 EFLAGS: 00000247
RAX: 0000000000000001 RBX: 1ffff920007c0ec9 RCX: ffffffff81679697
RDX: fffffbfff1d57ca3 RSI: 0000000000000008 RDI: ffffffff8eabe510
RBP: 0000000000000001 R08: 0000000000000000 R09: fffffbfff1d57ca2
R10: ffffffff8eabe517 R11: 0000000000094000 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff8c9a6700 R15: 0000000000000000
trace_lock_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0x464/0x510 kernel/locking/lockdep.c:5732
rcu_lock_acquire include/linux/rcupdate.h:303 [inline]
rcu_read_lock include/linux/rcupdate.h:749 [inline]
find_get_entries+0x10c/0xbd0 mm/filemap.c:2027
shmem_undo_range+0x4a7/0x1080 mm/shmem.c:998
shmem_truncate_range mm/shmem.c:1049 [inline]
shmem_evict_inode+0x331/0xb40 mm/shmem.c:1164
evict+0x2ed/0x6b0 fs/inode.c:665
iput_final fs/inode.c:1791 [inline]
iput.part.0+0x55e/0x7a0 fs/inode.c:1817
iput+0x5c/0x80 fs/inode.c:1807
dentry_unlink_inode+0x292/0x430 fs/dcache.c:401
__dentry_kill+0x3b8/0x640 fs/dcache.c:607
dentry_kill fs/dcache.c:745 [inline]
dput+0x703/0xfd0 fs/dcache.c:913
do_renameat2+0xc4c/0xdc0 fs/namei.c:5011
__do_sys_rename fs/namei.c:5055 [inline]
__se_sys_rename fs/namei.c:5053 [inline]
__x64_sys_rename+0x81/0xa0 fs/namei.c:5053
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff24009a93b
RSP: 002b:00007fffba7c3bd8 EFLAGS: 00000202 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007ff24009a93b
RDX: 00005656b87fb9f6 RSI: 00007fffba7c3bf8 RDI: 00007fffba7c3ff8
RBP: 00005653dd427550 R08: 0000000000000006 R09: ed537708e0c7f2db
R10: 000000000000010f R11: 0000000000000202 R12: 00005653dd426880
R13: 00007fffba7c3bf8 R14: 00007fffba7c3ff8 R15: 00005653dbf07ec8
rcu: rcu_preempt kthread starved for 10490 jiffies! g235369 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:28672 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0xee1/0x59f0 kernel/sched/core.c:6710
schedule+0xe7/0x1b0 kernel/sched/core.c:6786
schedule_timeout+0x157/0x2c0 kernel/time/timer.c:2167
rcu_gp_fqs_loop+0x1ec/0xa50 kernel/rcu/tree.c:1609
rcu_gp_kthread+0x249/0x380 kernel/rcu/tree.c:1808
kthread+0x33a/0x430 kernel/kthread.c:389
ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 3385 Comm: kworker/u4:3 Not tainted 6.5.0-rc3-syzkaller-00700-g64a37272fa5f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:csd_lock_wait kernel/smp.c:296 [inline]
RIP: 0010:smp_call_function_many_cond+0x4d6/0x1570 kernel/smp.c:835
Code: 0b 00 85 ed 74 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 fc 4c 89 fd 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 1c 5f 0b 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 3c 0e 00 00 8b 43 08 31
RSP: 0018:ffffc9000c78f938 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffff8880b9844fe0 RCX: 0000000000000000
RDX: ffff888013f71dc0 RSI: ffffffff817b1fb4 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffed10173089fd
R13: 0000000000000001 R14: ffff8880b993d580 R15: ffff8880b9844fe8
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000000c776000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1003
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:2001 [inline]
text_poke_bp_batch+0x250/0x780 arch/x86/kernel/alternative.c:2211
text_poke_flush arch/x86/kernel/alternative.c:2402 [inline]
text_poke_flush arch/x86/kernel/alternative.c:2399 [inline]
text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:2409
arch_jump_label_transform_apply+0x17/0x30 arch/x86/kernel/jump_label.c:146
jump_label_update+0x32e/0x410 kernel/jump_label.c:829
static_key_disable_cpuslocked+0x154/0x1b0 kernel/jump_label.c:235
static_key_disable+0x1a/0x20 kernel/jump_label.c:243
toggle_allocation_gate mm/kfence/core.c:836 [inline]
toggle_allocation_gate+0x13f/0x250 mm/kfence/core.c:823
process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2597
worker_thread+0x687/0x1110 kernel/workqueue.c:2748
kthread+0x33a/0x430 kernel/kthread.c:389
ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000