watchdog: BUG: soft lockup - CPU#1 stuck for 144s! [syz.3.35:5302] Modules linked in: irq event stamp: 10502663 hardirqs last enabled at (10502662): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357 hardirqs last disabled at (10502663): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1043 softirqs last enabled at (5606956): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last enabled at (5606956): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last enabled at (5606956): [] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 softirqs last disabled at (5606959): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last disabled at (5606959): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last disabled at (5606959): [] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 CPU: 1 PID: 5302 Comm: syz.3.35 Not tainted 6.10.0-rc7-syzkaller-00254-g528dd46d0fc3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:unwind_get_return_address+0x5/0xc0 arch/x86/kernel/unwind_orc.c:365 Code: 24 40 8b 74 24 14 e9 dd fe ff ff e8 95 67 45 0a 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 <41> 57 41 56 53 48 89 fb 49 be 00 00 00 00 00 fc ff df e8 d4 39 55 RSP: 0018:ffffc90000a18410 EFLAGS: 00000246 RAX: ffffffff813772df RBX: ffffffff819f48f8 RCX: ffff88802ae80000 RDX: 0000000000000101 RSI: 0000000000000101 RDI: ffffc90000a18420 RBP: ffffc90000a184b0 R08: ffffffff81410e65 R09: ffffffff8141095f R10: 0000000000000003 R11: ffff88802ae80000 R12: ffff88802ae80000 R13: ffffffff8181de00 R14: ffffc90000a18500 R15: ffffc90000a18420 FS: 00007f0c8e7886c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33514ff8 CR3: 0000000029c2e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: arch_stack_walk+0x125/0x1b0 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:312 [inline] __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3940 [inline] slab_alloc_node mm/slub.c:4002 [inline] kmem_cache_alloc_node_noprof+0x16b/0x320 mm/slub.c:4045 kmalloc_reserve+0xa8/0x2a0 net/core/skbuff.c:575 __alloc_skb+0x1f3/0x440 net/core/skbuff.c:666 __netdev_alloc_skb+0x105/0x560 net/core/skbuff.c:730 netdev_alloc_skb include/linux/skbuff.h:3319 [inline] dev_alloc_skb include/linux/skbuff.h:3332 [inline] hsr_init_skb+0xe1/0x550 net/hsr/hsr_device.c:255 send_hsr_supervision_frame+0x148/0xce0 net/hsr/hsr_device.c:299 hsr_announce+0x1a9/0x370 net/hsr/hsr_device.c:399 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1792 expire_timers kernel/time/timer.c:1843 [inline] __run_timers kernel/time/timer.c:2417 [inline] __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2428 run_timer_base kernel/time/timer.c:2437 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2447 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:smp_call_function_many_cond+0x21bf/0x29d0 kernel/smp.c:858 Code: 00 eb 8a e8 33 ff 0b 00 eb 0c e8 2c ff 0b 00 eb 05 e8 25 ff 0b 00 48 c7 84 24 20 01 00 00 0e 36 e0 45 48 8b 84 24 18 01 00 00 <49> c7 04 04 00 00 00 00 66 41 c7 44 04 09 00 00 41 c6 44 04 0b 00 RSP: 0018:ffffc900049675a0 EFLAGS: 00000287 RAX: 1ffff9200092ced8 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc9000a4d5000 RSI: 00000000000034da RDI: 00000000000034db RBP: ffffc90004967780 R08: ffffffff818a1ef7 R09: 1ffffffff25f5ab0 R10: dffffc0000000000 R11: fffffbfff25f5ab1 R12: dffffc0000000000 R13: ffff8880b953f8c0 R14: ffff8880b953f8c8 R15: 0000000000000001 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1023 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:2069 [inline] text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2279 text_poke_flush arch/x86/kernel/alternative.c:2470 [inline] text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2477 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:205 static_key_enable+0x1a/0x20 kernel/jump_label.c:218 tracepoint_add_func+0x953/0x9e0 kernel/tracepoint.c:361 tracepoint_probe_register_prio kernel/tracepoint.c:511 [inline] tracepoint_probe_register+0x105/0x160 kernel/tracepoint.c:531 perf_trace_event_reg kernel/trace/trace_event_perf.c:129 [inline] perf_trace_event_init+0x478/0x930 kernel/trace/trace_event_perf.c:202 perf_trace_init+0x243/0x2e0 kernel/trace/trace_event_perf.c:226 perf_tp_event_init+0x8d/0x110 kernel/events/core.c:10223 perf_try_init_event+0x139/0x3f0 kernel/events/core.c:11698 perf_init_event kernel/events/core.c:11768 [inline] perf_event_alloc+0x1018/0x20a0 kernel/events/core.c:12046 __do_sys_perf_event_open kernel/events/core.c:12553 [inline] __se_sys_perf_event_open+0xb43/0x38d0 kernel/events/core.c:12444 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0c8d975bd9 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:00007f0c8e788048 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f0c8db03f60 RCX: 00007f0c8d975bd9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040 RBP: 00007f0c8d9e4e60 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f0c8db03f60 R15: 00007ffdf3e603e8 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 2755 Comm: kworker/R-bat_e Not tainted 6.10.0-rc7-syzkaller-00254-g528dd46d0fc3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Workqueue: bat_events batadv_dat_purge RIP: 0010:rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline] RIP: 0010:rcu_is_watching+0x3a/0xb0 kernel/rcu/tree.c:724 Code: e8 0b 1f 0a 0a 89 c3 83 f8 08 73 7a 49 bf 00 00 00 00 00 fc ff df 4c 8d 34 dd e0 09 dc 8d 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 <74> 08 4c 89 f7 e8 fc 98 7f 00 48 c7 c3 c8 7c 03 00 49 03 1e 48 89 RSP: 0018:ffffc90009ccfa08 EFLAGS: 00000046 RAX: 1ffffffff1bb813c RBX: 0000000000000000 RCX: ffffffff819d8cbc RDX: 0000000000000000 RSI: ffffffff8c2028e0 RDI: ffffffff8c2028a0 RBP: ffffc90009ccfae8 R08: ffffffff8fad956f R09: 1ffffffff1f5b2ad R10: dffffc0000000000 R11: fffffbfff1f5b2ae R12: dffffc0000000000 R13: 1ffff92001399f50 R14: ffffffff8ddc09e0 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fabbaf3e300 CR3: 000000002b0b4000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: trace_irq_disable+0x3b/0x120 include/trace/events/preemptirq.h:36 __local_bh_enable_ip+0x106/0x200 kernel/softirq.c:364 spin_unlock_bh include/linux/spinlock.h:396 [inline] __batadv_dat_purge net/batman-adv/distributed-arp-table.c:186 [inline] batadv_dat_purge+0x2db/0x3c0 net/batman-adv/distributed-arp-table.c:205 process_one_work kernel/workqueue.c:3248 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3329 rescuer_thread+0x618/0xda0 kernel/workqueue.c:3505 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244