watchdog: BUG: soft lockup - CPU#1 stuck for 111s! [syz.8.4639:22729] Modules linked in: irq event stamp: 12578277 hardirqs last enabled at (12578276): [] irqentry_exit+0x5dd/0x660 kernel/entry/common.c:219 hardirqs last disabled at (12578277): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1056 softirqs last enabled at (2488280): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last enabled at (2488280): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last enabled at (2488280): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723 softirqs last disabled at (2488283): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last disabled at (2488283): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last disabled at (2488283): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723 CPU: 1 UID: 0 PID: 22729 Comm: syz.8.4639 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xa8/0x110 kernel/locking/spinlock.c:194 Code: 74 05 e8 eb 29 7d f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 73 e5 44 f6 65 8b 05 ec 22 2b 07 85 c0 74 40 48 c7 04 24 0e 36 RSP: 0018:ffffc90000a089a0 EFLAGS: 00000206 RAX: b132b740c7408900 RBX: 0000000000000a02 RCX: b132b740c7408900 RDX: 0000000000000002 RSI: ffffffff8d76bea1 RDI: 0000000000000001 RBP: ffffc90000a08a20 R08: ffffffff8f805b77 R09: 1ffffffff1f00b6e R10: dffffc0000000000 R11: fffffbfff1f00b6f R12: dffffc0000000000 R13: dffffc0000000000 R14: ffffffff99ba8060 R15: 1ffff92000141134 FS: 00007fa72eea26c0(0000) GS:ffff8881261b0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000291d8000 CR4: 00000000003526f0 DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] aoenet_xmit+0x123/0x1a0 drivers/block/aoe/aoenet.c:122 aoecmd_cfg+0x765/0x7c0 drivers/block/aoe/aoecmd.c:1375 call_timer_fn+0x16e/0x590 kernel/time/timer.c:1748 expire_timers kernel/time/timer.c:1799 [inline] __run_timers kernel/time/timer.c:2373 [inline] __run_timer_base+0x61a/0x860 kernel/time/timer.c:2385 run_timer_base kernel/time/timer.c:2394 [inline] run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2404 handle_softirqs+0x27d/0x850 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1056 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:preempt_schedule_irq+0xb0/0x150 kernel/sched/core.c:7190 Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 10 00 00 00 74 64 bf 01 00 00 00 e8 cb 4d 46 f6 e8 b6 93 7e f6 fb bf 01 00 00 00 1b a8 ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24 RSP: 0018:ffffc90003c0f800 EFLAGS: 00000286 RAX: b132b740c7408900 RBX: 0000000000000000 RCX: b132b740c7408900 RDX: 0000000000000006 RSI: ffffffff8d76bea1 RDI: 0000000000000001 RBP: ffffc90003c0f8b0 R08: ffffffff8f805b77 R09: 1ffffffff1f00b6e R10: dffffc0000000000 R11: fffffbfff1f00b6f R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000781f00 irqentry_exit+0x5d8/0x660 kernel/entry/common.c:216 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:__preempt_count_add arch/x86/include/asm/preempt.h:80 [inline] RIP: 0010:preempt_schedule_common+0x1e/0xd0 kernel/sched/core.c:7045 Code: 90 90 90 90 90 90 90 90 90 90 90 90 41 57 41 56 53 49 bf 00 00 00 00 00 fc ff df eb 0d 48 f7 03 10 00 00 00 0f 84 9b 00 00 00 <65> ff 05 6b 8f 2c 07 65 8b 05 64 8f 2c 07 25 ff ff ff 7f 83 f8 01 RSP: 0018:ffffc90003c0f9c0 EFLAGS: 00000202 RAX: 1ffff11005454b70 RBX: ffff88802a2a5b80 RCX: b132b740c7408900 RDX: 0000000000000000 RSI: ffffffff8bbfc640 RDI: ffffffff8bbfc600 RBP: ffffc90003c0fa58 R08: ffffffff8f805b77 R09: 1ffffffff1f00b6e R10: dffffc0000000000 R11: fffffbfff1f00b6f R12: 0000000000000000 R13: dffffc0000000000 R14: ffff88802a2a70a0 R15: dffffc0000000000 preempt_schedule+0xae/0xc0 kernel/sched/core.c:7071 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12 smp_call_function_single+0x470/0x590 kernel/smp.c:689 task_function_call kernel/events/core.c:122 [inline] perf_install_in_context+0x593/0x8f0 kernel/events/core.c:3108 __do_sys_perf_event_open kernel/events/core.c:13816 [inline] __se_sys_perf_event_open+0x1966/0x1d90 kernel/events/core.c:13458 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa72df8f749 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa72eea2038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007fa72e1e6180 RCX: 00007fa72df8f749 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000480 RBP: 00007fa72e013f91 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fa72e1e6218 R14: 00007fa72e1e6180 R15: 00007ffe3f1c8a88 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 1302 Comm: aoe_tx0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:put_dec_trunc8+0x85/0x340 lib/vsprintf.c:252 Code: 83 ff 63 0f 87 e2 01 00 00 e8 27 9a 7b f6 4e 8d 3c 7d 60 37 96 8c 4c 89 f8 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85 da 01 00 00 <45> 0f b7 3f 48 89 d8 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85 df 01 RSP: 0018:ffffc9000447e988 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffc9000447ea40 RCX: ffff888027498000 RDX: 0000000000000000 RSI: 000000000000002c RDI: 0000000000000064 RBP: 0000000000000540 R08: ffffc9000447ea57 R09: 0000000000000000 R10: ffffc9000447ea40 R11: fffff5200088fd4b R12: dffffc0000000000 R13: 0000000000000540 R14: 000000000000000d R15: ffffffff8c9637b8 FS: 0000000000000000(0000) GS:ffff8881260b0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000291d8000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: number+0x2f8/0xf60 lib/vsprintf.c:519 vsnprintf+0x8e5/0xee0 lib/vsprintf.c:2911 sprintf+0xd9/0x120 lib/vsprintf.c:3110 print_time kernel/printk/printk.c:1357 [inline] info_print_prefix+0x155/0x310 kernel/printk/printk.c:1383 record_print_text+0x154/0x420 kernel/printk/printk.c:1432 printk_get_next_message+0x26d/0x7b0 kernel/printk/printk.c:3018 console_emit_next_record kernel/printk/printk.c:3083 [inline] console_flush_one_record kernel/printk/printk.c:3215 [inline] console_flush_all+0x514/0xb60 kernel/printk/printk.c:3289 __console_flush_and_unlock kernel/printk/printk.c:3319 [inline] console_unlock+0xbb/0x190 kernel/printk/printk.c:3359 vprintk_emit+0x4f8/0x5f0 kernel/printk/printk.c:2426 dev_vprintk_emit+0x337/0x3f0 drivers/base/core.c:4914 dev_printk_emit+0xe0/0x130 drivers/base/core.c:4925 __netdev_printk+0x3e1/0x480 net/core/dev.c:12901 netdev_warn+0x10a/0x160 net/core/dev.c:12954 ieee802154_subif_start_xmit+0x136/0x190 net/mac802154/tx.c:232 __netdev_start_xmit include/linux/netdevice.h:5272 [inline] netdev_start_xmit include/linux/netdevice.h:5281 [inline] xmit_one net/core/dev.c:3853 [inline] dev_hard_start_xmit+0x2cd/0x800 net/core/dev.c:3869 sch_direct_xmit+0x241/0x4b0 net/sched/sch_generic.c:347 __dev_xmit_skb net/core/dev.c:4169 [inline] __dev_queue_xmit+0x136f/0x3140 net/core/dev.c:4783 dev_queue_xmit include/linux/netdevice.h:3381 [inline] tx+0x6b/0x190 drivers/block/aoe/aoenet.c:62 kthread+0x1d0/0x3e0 drivers/block/aoe/aoecmd.c:1241 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246