rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 GPs behind) idle=69b4/1/0x4000000000000000 softirq=40761/40762 fqs=0
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P11320/1:b..l
rcu: (detected by 1, t=10505 jiffies, g=40985, q=668 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 6081 Comm: udevd Not tainted 6.12.0-syzkaller-09435-g2c22dc1ee3a1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:86 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x79/0x290 mm/kasan/generic.c:189
Code: 4d 89 c1 49 c1 e9 03 49 be 01 00 00 00 00 fc ff df 4f 8d 3c 31 4c 89 fd 4c 29 dd 48 83 fd 10 7f 29 48 85 ed 0f 84 3e 01 00 00 <4c> 89 cd 48 f7 d5 48 01 dd 41 80 3b 00 0f 85 c9 01 00 00 49 ff c3
RSP: 0018:ffffc90000007b90 EFLAGS: 00000002
RAX: 0000000000000001 RBX: 1ffff110170c5910 RCX: ffffffff81728112
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff8880b862c880
RBP: 0000000000000001 R08: ffff8880b862c883 R09: 1ffff110170c5910
R10: dffffc0000000000 R11: ffffed10170c5910 R12: ffff8880b862c880
R13: 1ffff92000000f84 R14: dffffc0000000001 R15: ffffed10170c5911
FS: 00007fb493195c80(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2a69ac CR3: 000000003542e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:1300 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:111 [inline]
do_raw_spin_lock+0x142/0x370 kernel/locking/spinlock_debug.c:116
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:120 [inline]
_raw_spin_lock_irq+0xdf/0x120 kernel/locking/spinlock.c:170
__run_hrtimer kernel/time/hrtimer.c:1743 [inline]
__hrtimer_run_queues+0x670/0xd50 kernel/time/hrtimer.c:1803
hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_release+0x658/0xa30 kernel/locking/lockdep.c:5874
Code: 3c 3b 00 74 08 4c 89 f7 e8 95 55 8c 00 f6 84 24 91 00 00 00 02 75 77 41 f7 c5 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 4b c7 44 27 08 00 00 00 00 65 48 8b 04 25
RSP: 0018:ffffc900049a78c0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000934f2a RCX: ffffc900049a7903
RDX: 0000000000000004 RSI: ffffffff8c0aea80 RDI: ffffffff8c6076a0
RBP: ffffc900049a79f0 R08: ffffffff901d0c37 R09: 1ffffffff203a186
R10: dffffc0000000000 R11: fffffbfff203a187 R12: 1ffff92000934f24
R13: 0000000000000246 R14: ffffc900049a7950 R15: dffffc0000000000
rcu_lock_release include/linux/rcupdate.h:347 [inline]
rcu_read_unlock include/linux/rcupdate.h:880 [inline]
dput+0x179/0x2b0 fs/dcache.c:862
shmem_unlink+0x1eb/0x2b0 mm/shmem.c:3807
shmem_rename2+0x214/0x350 mm/shmem.c:3892
vfs_rename+0xbdb/0xf00 fs/namei.c:5067
do_renameat2+0xd94/0x13f0 fs/namei.c:5224
__do_sys_rename fs/namei.c:5271 [inline]
__se_sys_rename fs/namei.c:5269 [inline]
__x64_sys_rename+0x82/0x90 fs/namei.c:5269
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb492c9a93b
Code: 48 8b 15 f0 64 15 00 83 c8 ff 64 83 3a 15 75 0e 48 8b 7c 24 08 e8 d5 d4 07 00 f7 d8 19 c0 48 83 c4 18 c3 b8 52 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 10 48 8b 15 be 64 15 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffdc098c4a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb492c9a93b
RDX: 000055e529112a34 RSI: 00007ffdc098c4c8 RDI: 00007ffdc098c8c8
RBP: 000055e077153ec0 R08: 0000000000000006 R09: 2182b581b45f7dca
R10: 00000000000001b6 R11: 0000000000000202 R12: 000055e077164e70
R13: 00007ffdc098c4c8 R14: 00007ffdc098c8c8 R15: 000055e06108a160
task:syz.3.1660 state:R running task stack:25952 pid:11320 tgid:11320 ppid:5840 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6935
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6959
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
_raw_spin_unlock_irqrestore+0x130/0x140 kernel/locking/spinlock.c:194
spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
__wake_up_common_lock+0x18c/0x1e0 kernel/sched/wait.c:108
sock_def_readable+0x20f/0x5b0 net/core/sock.c:3453
__netlink_sendskb net/netlink/af_netlink.c:1268 [inline]
netlink_broadcast_deliver net/netlink/af_netlink.c:1398 [inline]
do_one_broadcast net/netlink/af_netlink.c:1485 [inline]
netlink_broadcast_filtered+0xe9f/0x12a0 net/netlink/af_netlink.c:1530
netlink_broadcast+0x39/0x50 net/netlink/af_netlink.c:1554
uevent_net_broadcast_untagged lib/kobject_uevent.c:331 [inline]
kobject_uevent_net_broadcast+0x38f/0x580 lib/kobject_uevent.c:410
kobject_uevent_env+0x57d/0x8e0 lib/kobject_uevent.c:608
kvm_uevent_notify_change+0x302/0x3a0 virt/kvm/kvm_main.c:6182
kvm_destroy_vm virt/kvm/kvm_main.c:1265 [inline]
kvm_put_kvm+0xa1/0xf60 virt/kvm/kvm_main.c:1340
kvm_vm_release+0x43/0x50 virt/kvm/kvm_main.c:1363
__fput+0x23c/0xa50 fs/file_table.c:450
task_work_run+0x24f/0x310 kernel/task_work.c:239
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff41257e819
RSP: 002b:00007ffe1a0b2ec8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 000000000007b21b RCX: 00007ff41257e819
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007ff412737ba0 R08: 0000000000000001 R09: 00007ffe1a0b31bf
R10: 00007ff412400000 R11: 0000000000000246 R12: 000000000007b271
R13: 00007ff412735fa0 R14: 0000000000000032 R15: ffffffffffffffff
rcu: rcu_preempt kthread starved for 10505 jiffies! g40985 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:25360 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.12.0-syzkaller-09435-g2c22dc1ee3a1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:92 [inline]
RIP: 0010:acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:112
Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 80 d4 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 05 96 a0 00 f3 0f 1e fa fb f4 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffc900001a7d08 EFLAGS: 00000246
RAX: ffff88801cee0000 RBX: ffff888141ac9064 RCX: 000000000075d659
RDX: 0000000000000001 RSI: ffff888141ac9000 RDI: ffff888141ac9064
RBP: 000000000003a878 R08: ffff8880b8737cdb R09: 1ffff110170e6f9b
R10: dffffc0000000000 R11: ffffffff8bc9af50 R12: ffff88801cbaf000
R13: 0000000000000001 R14: 0000000000000001 R15: ffffffff8f129a00
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556d57808 CR3: 0000000061bd8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:699
cpuidle_enter_state+0x109/0x470 drivers/cpuidle/cpuidle.c:268
cpuidle_enter+0x5d/0xa0 drivers/cpuidle/cpuidle.c:389
call_cpuidle kernel/sched/idle.c:155 [inline]
cpuidle_idle_call kernel/sched/idle.c:230 [inline]
do_idle+0x372/0x5c0 kernel/sched/idle.c:325
cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:423
start_secondary+0x102/0x110 arch/x86/kernel/smpboot.c:314
common_startup_64+0x13e/0x147