watchdog: BUG: soft lockup - CPU#0 stuck for 144s! [syz.1.631:6247] Modules linked in: irq event stamp: 14237493 hardirqs last enabled at (14237492): [] asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 hardirqs last disabled at (14237493): [] sysvec_apic_timer_interrupt+0xa/0xb0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (761148): [] __do_softirq kernel/softirq.c:605 [inline] softirqs last enabled at (761148): [] invoke_softirq kernel/softirq.c:445 [inline] softirqs last enabled at (761148): [] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654 softirqs last disabled at (761151): [] __do_softirq kernel/softirq.c:605 [inline] softirqs last disabled at (761151): [] invoke_softirq kernel/softirq.c:445 [inline] softirqs last disabled at (761151): [] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654 CPU: 0 PID: 6247 Comm: syz.1.631 Not tainted 6.1.106-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:__alloc_skb+0xde/0x670 Code: dd 0f 85 dc 03 00 00 e8 50 dc f6 f8 4c 89 fd eb 20 e8 46 dc f6 f8 8b 5c 24 04 44 89 f6 83 e6 fe 48 89 ef 89 da e8 52 78 4d f9 0a e8 2b dc f6 f8 e8 86 05 00 00 49 89 c5 48 85 c0 0f 84 9a 03 RSP: 0018:ffffc900000079d0 EFLAGS: 00000282 RAX: ffff88807779bb40 RBX: 00000000ffffffff RCX: 0000000000000000 RDX: 00000000000000f0 RSI: ffffffff8b5d62a0 RDI: ffffffff8b5d6260 RBP: ffff888013864500 R08: 000000000000000e R09: ffff88807779bb40 R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000000000d0 R13: 0000000000000000 R14: 0000000000000a20 R15: 0000000000000a20 FS: 00007fe1fd4856c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fefa7892ae0 CR3: 000000007db8b000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: alloc_skb include/linux/skbuff.h:1271 [inline] new_skb drivers/block/aoe/aoecmd.c:66 [inline] aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:427 [inline] aoecmd_cfg+0x2cc/0xa20 drivers/block/aoe/aoecmd.c:1362 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504 expire_timers kernel/time/timer.c:1549 [inline] __run_timers+0x67c/0x890 kernel/time/timer.c:1820 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571 __do_softirq kernel/softirq.c:605 [inline] invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:preempt_schedule_irq+0xf2/0x1c0 kernel/sched/core.c:6870 Code: 89 f5 49 c1 ed 03 eb 0d 48 f7 03 08 00 00 00 0f 84 97 00 00 00 bf 01 00 00 00 e8 99 54 b0 f6 e8 04 56 e3 f6 fb bf 01 00 00 00 79 b4 ff ff 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 a9 0e 34 f7 48 RSP: 0018:ffffc900177d74c0 EFLAGS: 00000282 RAX: 2f62b0e802342500 RBX: 1ffff92002efaea0 RCX: ffffffff816ae04a RDX: dffffc0000000000 RSI: ffffffff8b0c0260 RDI: 0000000000000001 RBP: ffffc900177d7580 R08: dffffc0000000000 R09: fffffbfff20e765c R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92002efae98 R13: 1ffff92002efae9c R14: ffffc900177d74e0 R15: dffffc0000000000 irqentry_exit+0x53/0x80 kernel/entry/common.c:439 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:__phys_addr+0x22/0x170 arch/x86/mm/physaddr.c:17 Code: cc cc cc cc cc cc cc cc 41 57 41 56 53 49 89 fe e8 e3 f2 4c 00 48 bf ff ff ff 7f ff ff ff ff 4c 89 f6 e8 b1 f6 4c 00 4c 89 f3 <48> 81 eb 00 00 00 80 0f 83 90 00 00 00 48 b8 00 00 00 00 80 77 00 RSP: 0018:ffffc900177d7640 EFLAGS: 00000297 RAX: 0000000000000002 RBX: ffff88801f9fe080 RCX: ffff88807d1e3b80 RDX: ffffc90004a69000 RSI: ffff88801f9fe080 RDI: ffffffff7fffffff RBP: dffffc0000000000 R08: ffffffff813db0ef R09: 000000008020001e R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 0000000000000cc0 R14: ffff88801f9fe080 R15: 0000000000000000 virt_to_folio include/linux/mm.h:898 [inline] virt_to_slab mm/slab.h:175 [inline] qlink_to_cache+0x5/0xa0 mm/kasan/quarantine.c:131 qlist_free_all+0x3b/0xe0 mm/kasan/quarantine.c:184 kasan_quarantine_reduce+0x156/0x170 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:305 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x52/0x3a0 mm/slab.h:737 slab_alloc_node mm/slub.c:3398 [inline] kmem_cache_alloc_node+0x136/0x310 mm/slub.c:3443 __alloc_skb+0xde/0x670 net/core/skbuff.c:505 alloc_skb_fclone include/linux/skbuff.h:1321 [inline] tcp_stream_alloc_skb+0x3e/0x310 net/ipv4/tcp.c:869 tcp_sendmsg_locked+0xda6/0x4100 net/ipv4/tcp.c:1332 tcp_sendmsg+0x2c/0x40 net/ipv4/tcp.c:1490 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] ____sys_sendmsg+0x5a5/0x8f0 net/socket.c:2514 ___sys_sendmsg net/socket.c:2568 [inline] __sys_sendmsg+0x2a9/0x390 net/socket.c:2597 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fe1fc779ef9 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:00007fe1fd485038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fe1fc915f80 RCX: 00007fe1fc779ef9 RDX: 00000000000052cc RSI: 0000000020000040 RDI: 000000000000000f RBP: 00007fe1fc7e793e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fe1fc915f80 R15: 00007fff9537e178 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 6270 Comm: kworker/u4:12 Not tainted 6.1.106-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:rep_nop arch/x86/include/asm/vdso/processor.h:13 [inline] RIP: 0010:cpu_relax arch/x86/include/asm/vdso/processor.h:18 [inline] RIP: 0010:csd_lock_wait kernel/smp.c:424 [inline] RIP: 0010:smp_call_function_many_cond+0x1fae/0x3460 kernel/smp.c:998 Code: 45 8b 2f 44 89 ee 83 e6 01 31 ff e8 fc 43 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 0a e8 87 40 0b 00 e9 1b ff ff ff 90 42 0f b6 04 2b 84 c0 75 14 41 f7 07 01 00 00 00 0f 84 fe fe RSP: 0018:ffffc900179975a0 EFLAGS: 00000293 RAX: ffffffff817f635b RBX: 1ffff11017308595 RCX: ffff888018765940 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90017997980 R08: ffffffff817f6324 R09: fffffbfff20e7645 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000800000000 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880b9842ca8 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000562ee9876030 CR3: 000000000d08e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1166 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:1334 [inline] text_poke_bp_batch+0x2bb/0x940 arch/x86/kernel/alternative.c:1534 text_poke_flush arch/x86/kernel/alternative.c:1725 [inline] text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1732 arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146 static_key_enable_cpuslocked+0x12e/0x250 kernel/jump_label.c:205 static_key_enable+0x16/0x20 kernel/jump_label.c:218 toggle_allocation_gate+0xbf/0x480 mm/kfence/core.c:804 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295