watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [swapper/1:0] CPU#1 Utilization every 4s during lockup: #1: 27% system, 2% softirq, 1% hardirq, 72% idle #2: 24% system, 2% softirq, 43% hardirq, 7% idle #3: 1% system, 0% softirq, 232% hardirq, 3% idle #4: 0% system, 0% softirq, 0% hardirq, 0% idle #5: 0% system, 0% softirq, 0% hardirq, 0% idle Modules linked in: irq event stamp: 508638 hardirqs last enabled at (508637): [] default_idle_call+0xcc/0xfc kernel/sched/idle.c:124 hardirqs last disabled at (508638): [] __el1_irq arch/arm64/kernel/entry-common.c:557 [inline] hardirqs last disabled at (508638): [] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:575 softirqs last enabled at (508602): [] softirq_handle_end kernel/softirq.c:425 [inline] softirqs last enabled at (508602): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607 softirqs last disabled at (507505): [] __do_softirq+0x14/0x20 kernel/softirq.c:613 CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.15.0-rc6-syzkaller-00085-gc94d59a126cb #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 80400005 (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:124 sp : ffff800094a87d60 x29: ffff800094a87d60 x28: 0000000000000002 x27: dfff800000000000 x26: 1ffff00012950fb4 x25: 0000000000000000 x24: 0000000000000000 x23: 1fffe000181507a0 x22: ffff80008d3be640 x21: 1ffff00011a77cc8 x20: 0000000000000000 x19: ffff80008047610c x18: 1fffe00033ee68b6 x17: ffff80008d3be000 x16: ffff800080475a6c x15: 0000000000000001 x14: 1fffe00033ee8569 x13: 0000000000000000 x12: 0000000000000000 x11: ffff600033ee856a x10: 0000000000000003 x9 : 0000000000000000 x8 : 000000000007c2dd x7 : ffff800080605104 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff800089c21c18 x2 : 0000000000000000 x1 : ffff80008caa5157 x0 : ffff800112423000 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:185 [inline] do_idle+0x1d8/0x454 kernel/sched/idle.c:325 cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:423 secondary_start_kernel+0x194/0x1bc arch/arm64/kernel/smp.c:279 __secondary_switched+0xc0/0xc4 arch/arm64/kernel/head.S:401 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.15.0-rc6-syzkaller-00085-gc94d59a126cb #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 80400005 (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:124 sp : ffff80008d337d00 x29: ffff80008d337d00 x28: 0000000000000001 x27: dfff800000000000 x26: 1ffff00011a66fa8 x25: 0000000000000000 x24: 0000000000000000 x23: 1ffff00011a7cb60 x22: ffff80008d3be640 x21: 1ffff00011a77cc8 x20: 0000000000000000 x19: ffff80008047610c x18: 1fffe00033ee20b6 x17: ffff80008d3be000 x16: ffff800080475a6c x15: 0000000000000001 x14: 1fffe00033ee3d69 x13: 0000000000000000 x12: 0000000000000000 x11: ffff600033ee3d6a x10: 0000000000000003 x9 : 0000000000000000 x8 : 0000000000072c89 x7 : ffff800080605104 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff800089c21c18 x2 : 0000000000000000 x1 : ffff80008caa5157 x0 : ffff8001123ff000 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:185 [inline] do_idle+0x1d8/0x454 kernel/sched/idle.c:325 cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:423 rest_init+0x2d8/0x2f4 init/main.c:743 start_kernel+0x44c/0x4a8 init/main.c:1099 __primary_switched+0x8c/0x94 arch/arm64/kernel/head.S:246