watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [syz.4.41:6050] Modules linked in: irq event stamp: 10985859 hardirqs last enabled at (10985858): [] irqentry_exit+0x74/0x90 kernel/entry/common.c:310 hardirqs last disabled at (10985859): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1050 softirqs last enabled at (111408): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last enabled at (111408): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last enabled at (111408): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 softirqs last disabled at (111411): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last disabled at (111411): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last disabled at (111411): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 CPU: 0 UID: 0 PID: 6050 Comm: syz.4.41 Not tainted 6.15.0-syzkaller-g99fe8af069a9 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:expire_timers kernel/time/timer.c:1798 [inline] RIP: 0010:__run_timers kernel/time/timer.c:2372 [inline] RIP: 0010:__run_timer_base+0x610/0x860 kernel/time/timer.c:2384 Code: e6 31 ff e8 e2 85 12 00 b8 00 00 20 00 41 21 c4 75 2c e8 93 81 12 00 4c 8b 64 24 18 4c 89 e7 e8 16 ad ba 09 4c 89 f7 48 89 de <48> 8b 54 24 20 e8 d6 40 00 00 4c 89 e7 e8 1e aa ba 09 eb 2a e8 67 RSP: 0018:ffffc90000007ca0 EFLAGS: 00000202 RAX: 0000000000000102 RBX: ffffffff8666ccd0 RCX: 0000000000000100 RDX: 0000000000000002 RSI: ffffffff8666ccd0 RDI: ffff888027128de8 RBP: ffffc90000007e10 R08: ffffffff8fa101f7 R09: 1ffffffff1f4203e R10: dffffc0000000000 R11: fffffbfff1f4203f R12: ffff8880b8625940 R13: 1ffff92000000fac R14: ffff888027128de8 R15: ffffc90000007d60 FS: 00007f5edad8b6c0(0000) GS:ffff888125c54000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2b48e6 CR3: 0000000033826000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: run_timer_base kernel/time/timer.c:2393 [inline] run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2403 handle_softirqs+0x286/0x870 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:23 [inline] RIP: 0010:raw_atomic_read include/linux/atomic/atomic-arch-fallback.h:457 [inline] RIP: 0010:rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline] RIP: 0010:rcu_is_watching+0x5a/0xb0 kernel/rcu/tree.c:745 Code: f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 cc 08 7d 00 48 c7 c3 58 ef 9d 92 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 38 <84> c0 75 34 8b 03 65 ff 0d 89 99 f5 10 74 11 83 e0 04 c1 e8 02 5b RSP: 0018:ffffc9000498f6d0 EFLAGS: 00000a06 RAX: 0000000000000000 RBX: ffff8880b8632f58 RCX: 6422fa0eab8db400 RDX: ffff888027293c00 RSI: ffffffff8be287e0 RDI: ffffffff8be287a0 RBP: ffffc9000498f7f8 R08: 0000000000000000 R09: ffffffff81cb84c7 R10: dffffc0000000000 R11: fffff91ffff940ff R12: 0000000000000001 R13: ffffc9000498f780 R14: ffffffff8dba2c60 R15: dffffc0000000000 rcu_read_lock_held_common kernel/rcu/update.c:109 [inline] rcu_read_lock_held+0x15/0x50 kernel/rcu/update.c:349 trace_call_bpf+0x1ad/0x850 kernel/trace/bpf_trace.c:146 perf_trace_run_bpf_submit+0x78/0x170 kernel/events/core.c:10866 do_perf_trace_lock include/trace/events/lock.h:50 [inline] perf_trace_lock+0x2f8/0x3b0 include/trace/events/lock.h:50 __do_trace_lock_release include/trace/events/lock.h:69 [inline] trace_lock_release include/trace/events/lock.h:69 [inline] lock_release+0x3b2/0x3e0 kernel/locking/lockdep.c:5882 might_alloc include/linux/sched/mm.h:319 [inline] slab_pre_alloc_hook mm/slub.c:4099 [inline] slab_alloc_node mm/slub.c:4177 [inline] __do_kmalloc_node mm/slub.c:4327 [inline] __kmalloc_node_noprof+0xa9/0x4e0 mm/slub.c:4334 kmalloc_array_node_noprof include/linux/slab.h:1020 [inline] alloc_slab_obj_exts+0x39/0xa0 mm/slub.c:1992 __memcg_slab_post_alloc_hook+0x31e/0x7f0 mm/memcontrol.c:3177 memcg_slab_post_alloc_hook mm/slub.c:2180 [inline] slab_post_alloc_hook mm/slub.c:4158 [inline] slab_alloc_node mm/slub.c:4197 [inline] kmem_cache_alloc_lru_noprof+0x2c7/0x3d0 mm/slub.c:4216 __d_alloc+0x31/0x6f0 fs/dcache.c:1690 d_alloc_pseudo+0x1f/0xb0 fs/dcache.c:1821 alloc_path_pseudo fs/file_table.c:360 [inline] alloc_file_pseudo+0xcc/0x210 fs/file_table.c:376 __anon_inode_getfile fs/anon_inodes.c:153 [inline] anon_inode_getfile+0xc5/0x1a0 fs/anon_inodes.c:191 __do_sys_perf_event_open kernel/events/core.c:13599 [inline] __se_sys_perf_event_open+0xf20/0x1d70 kernel/events/core.c:13301 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5ed9f8e929 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:00007f5edad8b038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f5eda1b5fa0 RCX: 00007f5ed9f8e929 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000480 RBP: 00007f5eda010b39 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f5eda1b5fa0 R15: 00007ffc5800cf18 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 1301 Comm: aoe_tx0 Not tainted 6.15.0-syzkaller-g99fe8af069a9 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:32 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:109 [inline] RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:127 [inline] RIP: 0010:lock_release+0xaa/0x3e0 kernel/locking/lockdep.c:5888 Code: 92 41 83 bf ec 0a 00 00 00 0f 85 1e 02 00 00 49 81 3e 40 83 60 93 0f 84 11 02 00 00 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 <48> 8b 5c 24 20 fa 48 c7 c7 c3 0a 99 8d e8 e4 dc c7 09 65 ff 05 dd RSP: 0018:ffffc90000a08958 EFLAGS: 00000002 RAX: 0000000000000000 RBX: ffffffff81cb84c7 RCX: 94075ef48dd95500 RDX: 0000000000010000 RSI: ffffffff8be287e0 RDI: ffffffff8be287a0 RBP: ffffc90000a08ab8 R08: ffffc90000a08a4f R09: 0000000000000000 R10: ffffc90000a08a40 R11: ffffffffa0202f0c R12: 0000000000000000 R13: ffffffff81cb84c7 R14: ffffffff8e13f060 R15: ffff8880278a9e00 FS: 0000000000000000(0000) GS:ffff888125d54000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555893d45c8 CR3: 000000003309a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:871 [inline] trace_call_bpf+0x5a9/0x850 kernel/trace/bpf_trace.c:148 perf_trace_run_bpf_submit+0x78/0x170 kernel/events/core.c:10866 do_perf_trace_lock include/trace/events/lock.h:50 [inline] perf_trace_lock+0x2f8/0x3b0 include/trace/events/lock.h:50 __do_trace_lock_release include/trace/events/lock.h:69 [inline] trace_lock_release include/trace/events/lock.h:69 [inline] lock_release+0x3b2/0x3e0 kernel/locking/lockdep.c:5882 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline] _raw_spin_unlock_irqrestore+0x70/0x110 kernel/locking/spinlock.c:194 debug_hrtimer_deactivate kernel/time/hrtimer.c:450 [inline] debug_deactivate+0x1d/0x200 kernel/time/hrtimer.c:490 __run_hrtimer kernel/time/hrtimer.c:1729 [inline] __hrtimer_run_queues+0x2b0/0xc60 kernel/time/hrtimer.c:1825 hrtimer_interrupt+0x45b/0xaa0 kernel/time/hrtimer.c:1887 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1039 [inline] __sysvec_apic_timer_interrupt+0x108/0x410 arch/x86/kernel/apic/apic.c:1056 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:console_trylock_spinning kernel/printk/printk.c:2061 [inline] RIP: 0010:vprintk_emit+0x58f/0x7a0 kernel/printk/printk.c:2449 Code: 85 32 01 00 00 e8 d1 63 1f 00 41 89 df 4d 85 f6 48 8b 1c 24 75 07 e8 c0 63 1f 00 eb 06 e8 b9 63 1f 00 fb 48 c7 c7 e0 32 13 8e <31> f6 ba 01 00 00 00 31 c9 41 b8 01 00 00 00 45 31 c9 53 e8 b9 36 RSP: 0018:ffffc90004c1f260 EFLAGS: 00000293 RAX: ffffffff81a0fd97 RBX: ffffffff81a0fc54 RCX: ffff8880278a9e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8e1332e0 RBP: ffffc90004c1f370 R08: ffffffff8fa101f7 R09: 1ffffffff1f4203e R10: dffffc0000000000 R11: fffffbfff1f4203f R12: dffffc0000000000 R13: 1ffff92000983e50 R14: 0000000000000200 R15: 000000000000002d dev_vprintk_emit+0x337/0x3f0 drivers/base/core.c:4917 dev_printk_emit+0xe0/0x130 drivers/base/core.c:4928 __netdev_printk+0x3d7/0x4d0 net/core/dev.c:12508 netdev_warn+0x10a/0x160 net/core/dev.c:12561 ieee802154_subif_start_xmit+0x136/0x190 net/mac802154/tx.c:232 __netdev_start_xmit include/linux/netdevice.h:5215 [inline] netdev_start_xmit include/linux/netdevice.h:5224 [inline] xmit_one net/core/dev.c:3830 [inline] dev_hard_start_xmit+0x2d7/0x830 net/core/dev.c:3846 sch_direct_xmit+0x241/0x4b0 net/sched/sch_generic.c:344 __dev_xmit_skb net/core/dev.c:4102 [inline] __dev_queue_xmit+0x17b6/0x3a70 net/core/dev.c:4679 dev_queue_xmit include/linux/netdevice.h:3355 [inline] tx+0x6b/0x190 drivers/block/aoe/aoenet.c:62 kthread+0x1d0/0x3e0 drivers/block/aoe/aoecmd.c:1237 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245