watchdog: BUG: soft lockup - CPU#1 stuck for 36s! [syz-executor.0:6890]
Modules linked in:
irq event stamp: 909302
hardirqs last  enabled at (909301): [<ffff80008b0047cc>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:86 [inline]
hardirqs last  enabled at (909301): [<ffff80008b0047cc>] exit_to_kernel_mode+0xc0/0xf0 arch/arm64/kernel/entry-common.c:96
hardirqs last disabled at (909302): [<ffff80008b001c0c>] __el1_irq arch/arm64/kernel/entry-common.c:650 [inline]
hardirqs last disabled at (909302): [<ffff80008b001c0c>] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:668
softirqs last  enabled at (909282): [<ffff800080201608>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (909280): [<ffff8000802015d4>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
CPU: 1 UID: 0 PID: 6890 Comm: syz-executor.0 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : seqcount_lockdep_reader_access+0xd8/0xf8 include/linux/seqlock.h:75
lr : seqcount_lockdep_reader_access+0xd4/0xf8 include/linux/seqlock.h:74
sp : ffff8000a3a97a60
x29: ffff8000a3a97a60 x28: dfff800000000000 x27: 1fffe0001bbd651f
x26: ffff8000a3a97b20 x25: 1ffff00014752f6a x24: 1ffff00014752f6b
x23: ffff80008f745780 x22: ffff8000a3a97b40 x21: 0000000000000000
x20: ffff800080dc45a4 x19: 00000000000000c0 x18: 0000000000000000
x17: 0000000000000000 x16: ffff80008052932c x15: 0000000000000001
x14: 000000008b001fe4 x13: 000000009fa3e809 x12: ffff80008002359c
x11: ffff800093306be8 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : ffff0000c24f8000 x7 : ffff800080dc45a4 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000010
x2 : 0000000000000006 x1 : 0000000000000080 x0 : 0000000000000000
Call trace:
 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] (P)
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] (P)
 seqcount_lockdep_reader_access+0xd8/0xf8 include/linux/seqlock.h:74 (P)
 read_seqbegin include/linux/seqlock.h:836 [inline]
 read_seqbegin_or_lock include/linux/seqlock.h:1130 [inline]
 d_walk+0x44/0x668 fs/dcache.c:1297
 shrink_dcache_parent+0xec/0x27c fs/dcache.c:1553
 vfs_rmdir+0x368/0x464 fs/namei.c:4465
 do_rmdir+0x214/0x4c4 fs/namei.c:4516
 __do_sys_unlinkat fs/namei.c:4690 [inline]
 __se_sys_unlinkat fs/namei.c:4684 [inline]
 __arm64_sys_unlinkat+0xc8/0xf8 fs/namei.c:4684
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:50
lr : default_idle_call+0xd0/0xfc kernel/sched/idle.c:129
sp : ffff80008f737d20
x29: ffff80008f737d20 x28: 0000000000000001 x27: dfff800000000000
x26: 1ffff00011ee6fac x25: 0000000000000000 x24: 0000000000000000
x23: 1ffff00011efcba8 x22: ffff80008f7be768 x21: 1ffff00011ef7ced
x20: 0000000000000000 x19: ffff8000804c9a58 x18: 1fffe0003379be88
x17: ffff80008f7be000 x16: ffff8000804c937c x15: 0000000000000001
x14: 1fffe0003379db40 x13: 0000000000000000 x12: 0000000000000000
x11: ffff60003379db41 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000001556ab x7 : ffff80008065e88c x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008b006be4
x2 : 0000000000000000 x1 : ffff80008edc22d4 x0 : ffff80010c5d9000
Call trace:
 __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:26 [inline] (P)
 arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:48 (P)
 cpuidle_idle_call kernel/sched/idle.c:190 [inline]
 do_idle+0x1d8/0x454 kernel/sched/idle.c:330
 cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:428
 rest_init+0x2d8/0x2f4 init/main.c:744
 start_kernel+0x390/0x3e0 init/main.c:1097
 __primary_switched+0x8c/0x94 arch/arm64/kernel/head.S:246