watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:0]
Modules linked in:
irq event stamp: 294039
hardirqs last  enabled at (294038): [<ffff800011c31d74>] __el1_irq arch/arm64/kernel/entry-common.c:476 [inline]
hardirqs last  enabled at (294038): [<ffff800011c31d74>] el1_interrupt+0x58/0x68 arch/arm64/kernel/entry-common.c:486
hardirqs last disabled at (294039): [<ffff800011c31d40>] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline]
hardirqs last disabled at (294039): [<ffff800011c31d40>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:486
softirqs last  enabled at (289822): [<ffff800008020c1c>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last  enabled at (289822): [<ffff800008020c1c>] __do_softirq+0xac0/0xd54 kernel/softirq.c:600
softirqs last disabled at (289943): [<ffff80000802a65c>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.4.0-rc4-syzkaller-00265-g4ecd704a4c51 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : queued_spin_lock_slowpath+0x15c/0xcf8 kernel/locking/qspinlock.c:383
lr : queued_spin_lock_slowpath+0x168/0xcf8 kernel/locking/qspinlock.c:383
sp : ffff8000080079c0
x29: ffff800008007a60 x28: 1fffe0001a84171e x27: 1ffff00001000f44
x26: dfff800000000000 x25: 1fffe0001a841720 x24: ffff8000080079e0
x23: ffff800008007a20 x22: ffff700001000f3c x21: 0000000000000001
x20: 0000000000000001 x19: ffff0000d420b8f0 x18: ffff800008007880
x17: ffff80019f839000 x16: ffff800008987e7c x15: 0000000000017cbc
x14: 0000000085d30aea x13: dfff800000000000 x12: 0000000000000001
x11: 1fffe0001a84171e x10: 0000000000000000 x9 : 0000000000000000
x8 : 0000000000000001 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff800017e16738 x4 : 0000000000000008 x3 : ffff800011d0dc78
x2 : 0000000000000000 x1 : 0000000000000001 x0 : 0000000000000001
Call trace:
 __cmpwait_case_8 arch/arm64/include/asm/cmpxchg.h:249 [inline]
 __cmpwait arch/arm64/include/asm/cmpxchg.h:277 [inline]
 queued_spin_lock_slowpath+0x15c/0xcf8 kernel/locking/qspinlock.c:383
 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
 do_raw_spin_lock+0x320/0x348 kernel/locking/spinlock_debug.c:115
 __raw_spin_lock include/linux/spinlock_api_smp.h:134 [inline]
 _raw_spin_lock+0x50/0x60 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:350 [inline]
 fq_pie_timer+0x94/0x248 net/sched/sch_fq_pie.c:377
 call_timer_fn+0x19c/0x8cc kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x55c/0x734 kernel/time/timer.c:2022
 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:2035
 __do_softirq+0x2d0/0xd54 kernel/softirq.c:571
 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:899
 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:85
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:650
 irq_exit_rcu+0x14/0x84 kernel/softirq.c:662
 __el1_irq arch/arm64/kernel/entry-common.c:472 [inline]
 el1_interrupt+0x38/0x68 arch/arm64/kernel/entry-common.c:486
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:491
 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:587
 __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:33 [inline]
 arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:55
 cpuidle_idle_call kernel/sched/idle.c:170 [inline]
 do_idle+0x1f0/0x4e8 kernel/sched/idle.c:282
 cpu_startup_entry+0x24/0x28 kernel/sched/idle.c:379
 rest_init+0x2dc/0x2f4 init/main.c:735
 start_kernel+0x0/0x55c init/main.c:834
 start_kernel+0x3f0/0x55c init/main.c:1088
 __primary_switched+0xb8/0xc0 arch/arm64/kernel/head.S:523