watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [ksoftirqd/1:20] Modules linked in: irq event stamp: 4725129 hardirqs last enabled at (4725128): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] hardirqs last enabled at (4725128): [] _raw_spin_unlock_irq+0x3c/0x70 kernel/locking/spinlock.c:202 hardirqs last disabled at (4725129): [] __el1_irq arch/arm64/kernel/entry-common.c:467 [inline] hardirqs last disabled at (4725129): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:485 softirqs last enabled at (4141800): [] _stext+0x2e4/0x37c softirqs last disabled at (4141805): [] run_ksoftirqd+0x4c/0x21c kernel/softirq.c:934 CPU: 1 PID: 20 Comm: ksoftirqd/1 Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : preempt_count arch/arm64/include/asm/preempt.h:13 [inline] pc : check_kcov_mode kernel/kcov.c:166 [inline] pc : write_comp_data kernel/kcov.c:229 [inline] pc : __sanitizer_cov_trace_const_cmp8+0x14/0xbc kernel/kcov.c:304 lr : pie_calculate_probability+0xa8/0x3e0 net/sched/sch_pie.c:327 sp : ffff80000f263b60 x29: ffff80000f263b90 x28: dead000000000122 x27: ffff80000f263cb8 x26: ffff00010306af00 x25: 0019999999999998 x24: ffff80000b374e4c x23: 0000000000000383 x22: 0000000000000000 x21: 0000000000000000 x20: 0000000000000000 x19: ffff00011b8588e0 x18: 0000000076dbeddc x17: 00000000c1af6bc6 x16: ffff80000db49158 x15: ffff0000c02f0000 x14: 00000000000000b8 x13: 00000000ffffffff x12: ffff0000c02f0000 x11: ff8080000b371e30 x10: 0000000000000000 x9 : ffff0000c02f0000 x8 : 0000000000000101 x7 : ffff80000b374e88 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: preempt_count arch/arm64/include/asm/preempt.h:13 [inline] check_kcov_mode kernel/kcov.c:166 [inline] write_comp_data kernel/kcov.c:229 [inline] __sanitizer_cov_trace_const_cmp8+0x14/0xbc kernel/kcov.c:304 fq_pie_timer+0x70/0xec net/sched/sch_fq_pie.c:383 call_timer_fn+0x90/0x144 kernel/time/timer.c:1474 expire_timers kernel/time/timer.c:1519 [inline] __run_timers+0x280/0x374 kernel/time/timer.c:1790 run_timer_softirq+0x34/0x5c kernel/time/timer.c:1803 _stext+0x168/0x37c run_ksoftirqd+0x4c/0x21c kernel/softirq.c:934 smpboot_thread_fn+0x248/0x3e4 kernel/smpboot.c:164 kthread+0x12c/0x158 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860