watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-fuzzer:3995]
Modules linked in:
irq event stamp: 275247
hardirqs last  enabled at (275246): [<ffff80001194e720>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline]
hardirqs last  enabled at (275246): [<ffff80001194e720>] exit_to_kernel_mode+0x100/0x178 arch/arm64/kernel/entry-common.c:91
hardirqs last disabled at (275247): [<ffff80001194e968>] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227
softirqs last  enabled at (270908): [<ffff8000080300b4>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31
softirqs last disabled at (270913): [<ffff8000081b573c>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (270913): [<ffff8000081b573c>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (270913): [<ffff8000081b573c>] __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:636
CPU: 0 PID: 3995 Comm: syz-fuzzer Not tainted 5.15.116-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : queued_spin_lock_slowpath+0x160/0x938 kernel/locking/qspinlock.c:382
lr : queued_spin_lock_slowpath+0x16c/0x938 kernel/locking/qspinlock.c:382
sp : ffff8000080078e0
x29: ffff800008007980 x28: 1ffff00001000f28 x27: 1fffe0001a17441f
x26: dfff800000000000 x25: ffff700001000f20 x24: ffff800008007900
x23: 1fffe0001a17441e x22: ffff800008007940 x21: 0000000000000001
x20: 0000000000000001 x19: ffff0000d0ba20f0 x18: 0000000000010000
x17: ff808000083ec9d4 x16: ffff80000830309c x15: ffff8000083ec9d4
x14: 1ffff0000291e06a x13: ffffffffffffffff x12: 0000000000000001
x11: 1fffe0001a17441e x10: 0000000000000000 x9 : 0000000000000000
x8 : 0000000000000101 x7 : ffff80001009bd78 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000083023a8
x2 : 0000000000000000 x1 : 0000000000000004 x0 : 0000000000000001
Call trace:
 __cmpwait_case_32 arch/arm64/include/asm/cmpxchg.h:252 [inline]
 __cmpwait arch/arm64/include/asm/cmpxchg.h:278 [inline]
 queued_spin_lock_slowpath+0x160/0x938 kernel/locking/qspinlock.c:382
 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
 do_raw_spin_lock+0x334/0x35c kernel/locking/spinlock_debug.c:115
 __raw_spin_lock include/linux/spinlock_api_smp.h:143 [inline]
 _raw_spin_lock+0xb8/0x10c kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:363 [inline]
 fq_pie_timer+0x94/0x248 net/sched/sch_fq_pie.c:380
 call_timer_fn+0x19c/0x8f0 kernel/time/timer.c:1421
 expire_timers kernel/time/timer.c:1466 [inline]
 __run_timers+0x554/0x718 kernel/time/timer.c:1737
 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:1750
 __do_softirq+0x344/0xe20 kernel/softirq.c:558
 do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
 invoke_softirq kernel/softirq.c:439 [inline]
 __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:636
 irq_exit+0x14/0x88 kernel/softirq.c:660
 handle_domain_irq+0xf4/0x178 kernel/irq/irqdesc.c:710
 gic_handle_irq+0x78/0x1c8 drivers/irqchip/irq-gic-v3.c:757
 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:899
 do_interrupt_handler+0x74/0x94 arch/arm64/kernel/entry-common.c:267
 el0_interrupt+0x98/0x2d4 arch/arm64/kernel/entry-common.c:671
 __el0_irq_handler_common+0x18/0x24 arch/arm64/kernel/entry-common.c:678
 el0t_64_irq_handler+0x10/0x1c arch/arm64/kernel/entry-common.c:683
 el0t_64_irq+0x1a0/0x1a4 arch/arm64/kernel/entry.S:585