loop2: detected capacity change from 0 to 61440 nfs4: Unknown parameter '(' watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.4:12708] Modules linked in: irq event stamp: 2396263 hardirqs last enabled at (2396262): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2396263): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2376868): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2376871): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 12708 Comm: syz-executor.4 Not tainted 6.13.0-rc2-next-20241216 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x491/0x2490 Code: 85 48 c7 c0 45 d9 ac 85 eb 49 48 c7 c1 80 d9 ac 85 48 ba 00 00 00 00 00 fc ff df 48 8d 41 05 48 89 c6 48 c1 ee 03 0f b6 14 16 <48> 89 c6 83 e6 07 40 38 f2 7f 08 84 d2 0f 85 16 17 00 00 0f b6 51 RSP: 0018:ffff88806ce09508 EFLAGS: 00000213 RAX: ffffffff86adb3af RBX: 0000000000000001 RCX: ffffffff86adb3aa RDX: 0000000000000000 RSI: 1ffffffff0d5b675 RDI: ffffffff86685784 RBP: ffff88806ce095d0 R08: ffffffff86adb3aa R09: ffff88806ce095b8 R10: 000000000003a864 R11: 000000000009309b R12: ffff88806ce095d8 R13: ffff88806ce095c0 R14: ffff88806ce095b9 R15: ffff88806ce09578 FS: 00007ff5eca41700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e29546b6c8 CR3: 00000000169a8000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 kmem_cache_alloc_node_noprof+0x311/0x3e0 __alloc_skb+0x2ad/0x370 skb_copy+0x1d5/0x3b0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xafb/0x1320 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x546/0x950 __iterate_interfaces+0x2e0/0x650 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x1ab/0xa80 hrtimer_run_softirq+0x14c/0x310 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:put_cpu_partial+0x10a/0x1b0 Code: 24 28 75 5b 49 c7 44 24 28 00 00 00 00 4c 89 e7 48 8d 35 00 00 00 00 e8 04 ac ab ff 4d 85 ed 74 06 e8 aa 75 d5 ff fb 4d 85 f6 <74> 1c 5b 4c 89 f6 48 89 ef 5d 41 5c 41 5d 41 5e e9 c1 fa ff ff 44 RSP: 0018:ffff88803ccffa40 EFLAGS: 00000246 RAX: 000000000022ad4d RBX: ffffea0000278ac0 RCX: 1ffffffff0fe050a RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81a48ae6 RBP: ffff888008c4f780 R08: 0000000000000001 R09: fffffbfff0fde3e1 R10: ffffffff87ef1f0f R11: 0000000000000000 R12: ffff88806ce40390 R13: 0000000000000200 R14: 0000000000000000 R15: ffff888009e2bde0 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_kmalloc+0x6f/0x90 __kmalloc_node_track_caller_noprof+0x1ef/0x490 kstrdup+0x3e/0xc0 snd_timer_instance_new+0x66/0x300 snd_seq_timer_open+0x1a3/0x5a0 queue_use+0xe6/0x250 snd_seq_queue_alloc+0x302/0x510 snd_seq_ioctl_create_queue+0xa9/0x390 snd_seq_ioctl+0x20c/0x3e0 __x64_sys_ioctl+0x1a7/0x210 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff5ef4cbb19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff5eca41188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ff5ef5def60 RCX: 00007ff5ef4cbb19 RDX: 0000000020000000 RSI: 00000000c08c5332 RDI: 0000000000000005 RBP: 00007ff5ef525f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd363e754f R14: 00007ff5eca41300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.13.0-rc2-next-20241216 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x242/0xb60 Code: 02 48 89 e8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 85 08 00 00 b8 01 00 00 00 66 89 45 00 e9 bf fe ff ff 89 44 24 38 f3 90 5b fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 RSP: 0018:ffff88806cf099e0 EFLAGS: 00000202 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff84a8016f RDX: fffffbfff0c1ba25 RSI: 0000000000000004 RDI: ffffffff860dd120 RBP: ffffffff860dd120 R08: 0000000000000000 R09: fffffbfff0c1ba24 R10: ffffffff860dd123 R11: 0000000000000001 R12: 1ffff1100d9e133d R13: 0000000000000003 R14: fffffbfff0c1ba24 R15: ffff88806cf09a18 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e295433b48 CR3: 0000000015d60000 CR4: 0000000000350ef0 Call Trace: do_raw_spin_lock+0x1de/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6d1/0x1320 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x546/0x950 __iterate_interfaces+0x2e0/0x650 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x1ab/0xa80 hrtimer_run_softirq+0x14c/0x310 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:default_idle+0x1e/0x30 Code: 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 eb 0c 0f 1f 44 00 00 0f 00 2d e9 a6 1c 00 0f 1f 44 00 00 fb f4 e9 1c 2f 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff88800970fe68 EFLAGS: 00000206 RAX: 00000000001f1d87 RBX: 0000000000000001 RCX: ffffffff84a5d917 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff814b2b1a RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9e6cba R10: ffff88806cf365d3 R11: 0000000000000000 R12: ffffffff863fc590 R13: 1ffff110012e1fd2 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x6d/0xb0 do_idle+0x2fa/0x3b0 cpu_startup_entry+0x4f/0x60 start_secondary+0x1c1/0x220 common_startup_64+0x12c/0x138 kworker/u9:2 (38) used greatest stack depth: 23568 bytes left ---------------- Code disassembly (best guess): 0: 85 48 c7 test %ecx,-0x39(%rax) 3: c0 45 d9 ac rolb $0xac,-0x27(%rbp) 7: 85 eb test %ebp,%ebx 9: 49 rex.WB a: 48 c7 c1 80 d9 ac 85 mov $0xffffffff85acd980,%rcx 11: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 18: fc ff df 1b: 48 8d 41 05 lea 0x5(%rcx),%rax 1f: 48 89 c6 mov %rax,%rsi 22: 48 c1 ee 03 shr $0x3,%rsi 26: 0f b6 14 16 movzbl (%rsi,%rdx,1),%edx * 2a: 48 89 c6 mov %rax,%rsi <-- trapping instruction 2d: 83 e6 07 and $0x7,%esi 30: 40 38 f2 cmp %sil,%dl 33: 7f 08 jg 0x3d 35: 84 d2 test %dl,%dl 37: 0f 85 16 17 00 00 jne 0x1753 3d: 0f .byte 0xf 3e: b6 51 mov $0x51,%dh