watchdog: BUG: soft lockup - CPU#1 stuck for 21s! [swapper/1:0]
Modules linked in:
irq event stamp: 456242
hardirqs last  enabled at (456241): [<ffff80001132dc34>] default_idle_call+0xb8/0x40c kernel/sched/idle.c:109
hardirqs last disabled at (456242): [<ffff800011253c84>] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227
softirqs last  enabled at (456146): [<ffff80000819fb84>] softirq_handle_end kernel/softirq.c:419 [inline]
softirqs last  enabled at (456146): [<ffff80000819fb84>] handle_softirqs+0xa40/0xbe4 kernel/softirq.c:604
softirqs last disabled at (455659): [<ffff8000081a0188>] __do_softirq kernel/softirq.c:610 [inline]
softirqs last disabled at (455659): [<ffff8000081a0188>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (455659): [<ffff8000081a0188>] invoke_softirq kernel/softirq.c:457 [inline]
softirqs last disabled at (455659): [<ffff8000081a0188>] __irq_exit_rcu+0x240/0x43c kernel/softirq.c:659
CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : arch_local_irq_enable+0xc/0x18 arch/arm64/include/asm/irqflags.h:44
lr : arch_cpu_idle+0x14/0x20 arch/arm64/kernel/idle.c:45
sp : ffff80001b487d10
x29: ffff80001b487d10 x28: dfff800000000000 x27: 0000000000000002
x26: ffff700003690fb0 x25: 0000000000000000 x24: 0000000000000000
x23: 1fffe0001814d000 x22: 0000000000000001 x21: dfff800000000000
x20: ffff80001428d110 x19: ffff0000c0a68000 x18: 0000000000000002
x17: 0000000040000000 x16: ffff80000805e6c8 x15: 0000000000000002
x14: 0000000000000001 x13: 1fffe000341f7119 x12: 0000000000ff0100
x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000000e0 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff800011254cc8
x2 : 0000000000000001 x1 : ffff8000113ab3c0 x0 : ffff80018cdc1000
Call trace:
 arch_local_irq_enable+0xc/0x18 arch/arm64/include/asm/irqflags.h:35
 default_idle_call+0xcc/0x40c kernel/sched/idle.c:112
 cpuidle_idle_call kernel/sched/idle.c:194 [inline]
 do_idle+0x1c8/0x48c kernel/sched/idle.c:306
 cpu_startup_entry+0x24/0x28 kernel/sched/idle.c:403
 secondary_start_kernel+0x23c/0x28c arch/arm64/kernel/smp.c:265
 __secondary_switched+0x94/0x98 arch/arm64/kernel/head.S:661