watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz.7.7553:2645] Modules linked in: irq event stamp: 12979951 hardirqs last enabled at (12979950): [] irqentry_exit+0x59e/0x620 kernel/entry/common.c:242 hardirqs last disabled at (12979951): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1056 softirqs last enabled at (11751302): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last enabled at (11751302): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last enabled at (11751302): [] __irq_exit_rcu+0x5f/0x150 kernel/softirq.c:723 softirqs last disabled at (11751305): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last disabled at (11751305): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last disabled at (11751305): [] __irq_exit_rcu+0x5f/0x150 kernel/softirq.c:723 CPU: 1 UID: 0 PID: 2645 Comm: syz.7.7553 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:perf_trace_run_bpf_submit+0xee/0x170 kernel/events/core.c:11306 Code: 03 0f b6 04 28 84 c0 75 6e 41 0f b7 7d 00 48 8b 74 24 08 4c 89 e2 8b 4c 24 04 4d 89 f0 4c 8b 4c 24 48 41 57 53 e8 92 00 00 00 <48> 83 c4 20 eb 37 e8 37 1f cd ff eb 05 e8 30 1f cd ff 65 48 8b 05 RSP: 0018:ffffc90000a08278 EFLAGS: 00000246 RAX: 4c11fc774255bf00 RBX: 0000000000000001 RCX: f8f8f8f8f8f8f8f8 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffffc90000a08097 R09: 0000000000000000 R10: ffffc90000a08088 R11: fffff52000141013 R12: ffffe8ffffde4000 R13: ffffffff8e62c350 R14: ffff8880b87331f8 R15: 0000000000000000 FS: 00007fe57367e6c0(0000) GS:ffff888125596000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe57365cff8 CR3: 000000003adb4000 CR4: 00000000003526f0 DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: do_perf_trace_lock_acquire include/trace/events/lock.h:24 [inline] perf_trace_lock_acquire+0x33e/0x420 include/trace/events/lock.h:24 __do_trace_lock_acquire include/trace/events/lock.h:24 [inline] trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x2ea/0x330 kernel/locking/lockdep.c:5831 rcu_lock_acquire include/linux/rcupdate.h:312 [inline] rcu_read_lock include/linux/rcupdate.h:850 [inline] class_rcu_constructor include/linux/rcupdate.h:1193 [inline] unwind_next_frame+0xc2/0x23c0 arch/x86/kernel/unwind_orc.c:495 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122 ref_tracker_alloc+0x1b6/0x4d0 lib/ref_tracker.c:277 __netdev_tracker_alloc include/linux/netdevice.h:4403 [inline] netdev_hold include/linux/netdevice.h:4432 [inline] ___neigh_create+0xc9a/0x2230 net/core/neighbour.c:664 ip6_finish_output2+0x729/0x13e0 net/ipv6/ip6_output.c:128 NF_HOOK_COND include/linux/netfilter.h:307 [inline] ip6_output+0x340/0x550 net/ipv6/ip6_output.c:246 NF_HOOK include/linux/netfilter.h:318 [inline] ndisc_send_skb+0xbaa/0x14e0 net/ipv6/ndisc.c:512 addrconf_rs_timer+0x395/0x6d0 net/ipv6/addrconf.c:4042 call_timer_fn+0x192/0x5a0 kernel/time/timer.c:1748 expire_timers kernel/time/timer.c:1799 [inline] __run_timers kernel/time/timer.c:2373 [inline] __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2385 run_timer_base kernel/time/timer.c:2394 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2404 handle_softirqs+0x22a/0x7c0 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0x5f/0x150 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:finish_task_switch+0x245/0x920 kernel/sched/core.c:5152 Code: 00 00 48 85 db 0f 85 e8 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 49 83 c4 48 4c 89 e7 e8 95 07 0f 0a e8 80 3a 38 00 fb 4c 8b 65 c0 <49> 8d bc 24 30 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0 RSP: 0018:ffffc900033f6a98 EFLAGS: 00000202 RAX: 0000000000001867 RBX: 0000000000000000 RCX: 0000000080000001 RDX: 0000000000000000 RSI: ffffffff8deec7f5 RDI: ffffffff8c278880 RBP: ffffc900033f6af0 R08: ffffffff90111eb7 R09: 1ffffffff20223d6 R10: dffffc0000000000 R11: fffffbfff20223d7 R12: ffff8880598e3c80 R13: dffffc0000000000 R14: ffff888048c05ac0 R15: ffff8880b873b718 context_switch kernel/sched/core.c:5298 [inline] __schedule+0x1584/0x52b0 kernel/sched/core.c:6907 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7234 irqentry_exit+0x599/0x620 kernel/entry/common.c:239 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:deref_stack_reg+0x1cd/0x230 arch/x86/kernel/unwind_orc.c:424 Code: 8b 5c 24 18 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 b3 00 b8 00 4c 89 33 b0 01 eb 02 31 c0 48 83 c4 20 5b 41 5c <41> 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 44 89 f9 80 e1 07 80 c1 03 RSP: 0018:ffffc900033f6e30 EFLAGS: 00000282 RAX: 1ffff9200067ed01 RBX: ffffffff90b1f5ae RCX: 0000000000000001 RDX: ffffc900033f6f68 RSI: dffffc0000000000 RDI: ffffc900033f7578 RBP: 1ffff9200067ede5 R08: ffffc900033f7578 R09: 0000000000000000 R10: ffffc900033f6f78 R11: fffff5200067edf1 R12: ffffc900033f6f78 R13: 1ffff9200067ede7 R14: 1ffffffff34542d4 R15: dffffc0000000000 unwind_next_frame+0x18c6/0x23c0 arch/x86/kernel/unwind_orc.c:-1 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122 save_stack+0x122/0x230 mm/page_owner.c:165 __set_page_owner+0x8d/0x4c0 mm/page_owner.c:341 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1888 prep_new_page mm/page_alloc.c:1896 [inline] get_page_from_freelist+0x24dc/0x2580 mm/page_alloc.c:3961 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5249 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2485 alloc_frozen_pages_noprof mm/mempolicy.c:2556 [inline] alloc_pages_noprof+0xa8/0x190 mm/mempolicy.c:2576 get_free_pages_noprof+0xf/0x80 mm/page_alloc.c:5308 __kasan_populate_vmalloc_do mm/kasan/shadow.c:364 [inline] __kasan_populate_vmalloc+0x38/0x1d0 mm/kasan/shadow.c:424 kasan_populate_vmalloc include/linux/kasan.h:580 [inline] alloc_vmap_area+0xd21/0x1460 mm/vmalloc.c:2129 __get_vm_area_node+0x1f8/0x300 mm/vmalloc.c:3232 __vmalloc_node_range_noprof+0x372/0x1730 mm/vmalloc.c:4024 __vmalloc_node_noprof mm/vmalloc.c:4124 [inline] __vmalloc_noprof+0xd2/0x120 mm/vmalloc.c:4140 bpf_prog_alloc_no_stats+0x4a/0x4f0 kernel/bpf/core.c:107 bpf_prog_alloc+0x3c/0x1a0 kernel/bpf/core.c:156 bpf_prog_load+0x7ba/0x1ae0 kernel/bpf/syscall.c:2993 __sys_bpf+0x618/0x950 kernel/bpf/syscall.c:6229 __do_sys_bpf kernel/bpf/syscall.c:6342 [inline] __se_sys_bpf kernel/bpf/syscall.c:6340 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6340 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe57279c629 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe57367e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fe572a15fa0 RCX: 00007fe57279c629 RDX: 0000000000000094 RSI: 0000200000000440 RDI: 0000000000000005 RBP: 00007fe572832b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe572a16038 R14: 00007fe572a15fa0 R15: 00007ffe80e25fc8 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 1299 Comm: aoe_tx0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:cpuacct_account_field+0xc5/0x1d0 kernel/sched/cpuacct.c:356 Code: e8 80 da 0b 00 85 c0 0f 84 be 00 00 00 49 83 c6 10 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 5e f6 90 00 4d 8b 36 <49> 81 fe 20 19 62 8e 0f 84 80 00 00 00 4c 63 fd 44 89 f8 48 89 04 RSP: 0018:ffffc90000007b80 EFLAGS: 00000046 RAX: 1ffffffff1cf41b2 RBX: 00000000007372e9 RCX: 0000000080010203 RDX: 00000000007372e9 RSI: ffffffff8e15b390 RDI: ffffffff8c278880 RBP: 0000000000000002 R08: ffffffff81b1f485 R09: ffffffff9a284508 R10: dffffc0000000000 R11: ffffffff816ac320 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffffffff8e621920 R15: ffff888028c09e40 FS: 0000000000000000(0000) GS:ffff888125496000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000001440 CR3: 00000000394e6000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: cgroup_account_cputime_field include/linux/cgroup.h:755 [inline] task_group_account_field+0x49/0x1a0 kernel/sched/cputime.c:115 irqtime_account_process_tick+0x1f1/0x410 kernel/sched/cputime.c:-1 update_process_times+0x24/0x2f0 kernel/time/timer.c:2472 tick_sched_handle kernel/time/tick-sched.c:298 [inline] tick_nohz_handler+0x42b/0x770 kernel/time/tick-sched.c:319 __run_hrtimer kernel/time/hrtimer.c:1785 [inline] __hrtimer_run_queues+0x4d6/0xc30 kernel/time/hrtimer.c:1849 hrtimer_interrupt+0x42b/0x1010 kernel/time/hrtimer.c:1911 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1045 [inline] __sysvec_apic_timer_interrupt+0x102/0x3d0 arch/x86/kernel/apic/apic.c:1062 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline] sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1056 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:console_trylock_spinning kernel/printk/printk.c:2039 [inline] RIP: 0010:vprintk_emit+0x45d/0x560 kernel/printk/printk.c:2478 Code: 0f 84 44 ff ff ff e8 c2 f8 20 00 fb eb 44 e8 ba f8 20 00 e8 25 08 fd 09 4d 85 f6 74 94 e8 ab f8 20 00 fb 48 c7 c7 00 28 75 8e <31> f6 ba 01 00 00 00 31 c9 41 b8 01 00 00 00 45 31 c9 53 e8 2b 1b RSP: 0018:ffffc9000439f3a0 EFLAGS: 00000293 RAX: ffffffff81a3ba75 RBX: ffffffff81a3b8ef RCX: ffff888028c09e40 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8e752800 RBP: ffffc9000439f450 R08: ffffffff90111eb7 R09: 1ffffffff20223d6 R10: dffffc0000000000 R11: fffffbfff20223d7 R12: 0000000000000000 R13: 000000000000002d R14: 0000000000000200 R15: 1ffff92000873e78 dev_vprintk_emit+0x355/0x420 drivers/base/core.c:4913 dev_printk_emit+0xee/0x140 drivers/base/core.c:4924 __netdev_printk+0x3e1/0x480 net/core/dev.c:12916 netdev_warn+0x11e/0x180 net/core/dev.c:12969 ieee802154_subif_start_xmit+0x136/0x190 net/mac802154/tx.c:232 __netdev_start_xmit include/linux/netdevice.h:5275 [inline] netdev_start_xmit include/linux/netdevice.h:5284 [inline] xmit_one net/core/dev.c:3864 [inline] dev_hard_start_xmit+0x2cd/0x7f0 net/core/dev.c:3880 sch_direct_xmit+0x251/0x4c0 net/sched/sch_generic.c:347 __dev_xmit_skb net/core/dev.c:4179 [inline] __dev_queue_xmit+0x1538/0x3850 net/core/dev.c:4795 dev_queue_xmit include/linux/netdevice.h:3384 [inline] tx+0x6b/0x190 drivers/block/aoe/aoenet.c:62 kthread+0x1e0/0x3f0 drivers/block/aoe/aoecmd.c:1241 kthread+0x388/0x470 kernel/kthread.c:467 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245