sr 1:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive. 9pnet: Could not find request transport: rdma 9pnet: Could not find request transport: rdma watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [syz-executor.6:15347] Modules linked in: irq event stamp: 2916967 hardirqs last enabled at (2916966): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2916967): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2847252): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2847257): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 15347 Comm: syz-executor.6 Not tainted 6.12.0-next-20241128 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x1222/0x2490 Code: 44 24 18 80 3c 16 00 0f 85 fe 11 00 00 49 89 47 58 49 8d be 98 00 00 00 4c 89 44 24 18 48 89 4c 24 10 e8 01 e4 ff ff 4c 89 ee <48> 8b 4c 24 10 48 ba 00 00 00 00 00 fc ff df 48 c1 ee 03 4c 8b 44 RSP: 0018:ffff88806cf094c8 EFLAGS: 00000246 RAX: ffff88803e0ef990 RBX: 0000000000000001 RCX: ffffffff86bfd90e RDX: dffffc0000000000 RSI: ffff88806cf09580 RDI: ffff88803e0ef980 RBP: ffff88806cf09590 R08: ffffffff86bfd912 R09: ffff88806cf09578 R10: 000000000003c001 R11: 00000000000c3d3e R12: ffff88806cf09598 R13: ffff88806cf09580 R14: ffff88803e0ef8e8 R15: ffff88806cf09538 FS: 00007f4b32208700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fffa74f7b38 CR3: 000000000f2be000 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 kmalloc_reserve+0x189/0x2b0 __alloc_skb+0x162/0x370 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 84 92 ab ff 4d 85 ed 74 06 e8 6a 64 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:ffff88803e0ef990 EFLAGS: 00000246 RAX: 00000000002b7217 RBX: ffffea00002a1b80 RCX: 1ffffffff0fdfecf RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8184a476 RBP: ffff888008c4f780 R08: 0000000000000001 R09: fffffbfff0fdddf1 R10: ffffffff87eeef8f R11: 00000000000007e0 R12: ffff88806cf40350 R13: 0000000000000200 R14: 0000000000000000 R15: ffff88800a86e378 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 vm_area_dup+0x20/0x160 copy_process+0x78d7/0x8ee0 kernel_clone+0xeb/0x850 __do_sys_fork+0x80/0xc0 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4b34cd4b19 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:00007f4b32208188 EFLAGS: 00000246 ORIG_RAX: 0000000000000039 RAX: ffffffffffffffda RBX: 00007f4b34de80e0 RCX: 00007f4b34cd4b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f4b34d2ef6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe6376778f R14: 00007f4b32208300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.0-next-20241128 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0xb3/0xb60 Code: 49 c1 ee 03 41 83 e5 07 48 b8 00 00 00 00 00 fc ff df 49 01 c6 41 83 c5 03 be 04 00 00 00 48 89 ef e8 91 dc 04 fd 41 0f b6 06 <41> 38 c5 7c 08 84 c0 0f 85 48 09 00 00 8b 45 00 89 44 24 38 85 c0 RSP: 0018:ffff88806ce099e0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff848722cf RDX: fffffbfff0c1b789 RSI: 0000000000000004 RDI: ffffffff860dbc40 RBP: ffffffff860dbc40 R08: 0000000000000000 R09: fffffbfff0c1b788 R10: ffffffff860dbc43 R11: 5050505001000011 R12: 1ffff1100d9c133d R13: 0000000000000003 R14: fffffbfff0c1b788 R15: ffff88806ce09a18 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f59947af650 CR3: 000000000e4b4000 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 d9 80 3d 00 0f 1f 44 00 00 fb f4 e9 6c 2e 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffffffff85a07e10 EFLAGS: 00000202 RAX: 00000000001ff867 RBX: 0000000000000000 RCX: ffffffff8484fb07 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812b110a RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9c6cba R10: ffff88806ce365d3 R11: 0000000000000000 R12: ffffffff863f9f10 R13: 1ffffffff0b40fc7 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x6d/0xb0 do_idle+0x2fa/0x3b0 cpu_startup_entry+0x4f/0x60 rest_init+0x164/0x290 start_kernel+0x40d/0x530 x86_64_start_reservations+0x18/0x30 x86_64_start_kernel+0xcb/0xe0 common_startup_64+0x12c/0x138 ---------------- Code disassembly (best guess): 0: 44 24 18 rex.R and $0x18,%al 3: 80 3c 16 00 cmpb $0x0,(%rsi,%rdx,1) 7: 0f 85 fe 11 00 00 jne 0x120b d: 49 89 47 58 mov %rax,0x58(%r15) 11: 49 8d be 98 00 00 00 lea 0x98(%r14),%rdi 18: 4c 89 44 24 18 mov %r8,0x18(%rsp) 1d: 48 89 4c 24 10 mov %rcx,0x10(%rsp) 22: e8 01 e4 ff ff callq 0xffffe428 27: 4c 89 ee mov %r13,%rsi * 2a: 48 8b 4c 24 10 mov 0x10(%rsp),%rcx <-- trapping instruction 2f: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 36: fc ff df 39: 48 c1 ee 03 shr $0x3,%rsi 3d: 4c rex.WR 3e: 8b .byte 0x8b 3f: 44 rex.R