9pnet_fd: Insufficient options for proto=fd watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.2:35031] Modules linked in: irq event stamp: 4718977 hardirqs last enabled at (4718976): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4718977): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (4685390): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (4685393): [] __irq_exit_rcu+0xcc/0x110 CPU: 0 PID: 35031 Comm: syz-executor.2 Not tainted 6.2.0-next-20230227 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_trace_consume_entry+0xf4/0x170 Code: ff df 48 89 ea 48 c1 ea 03 80 3c 02 00 75 64 48 89 75 00 8b 43 08 39 43 10 0f 92 c0 48 83 c4 08 5b 5d e9 73 32 10 03 83 e8 01 <89> 43 0c 48 83 c4 08 b8 01 00 00 00 5b 5d e9 5d 32 10 03 48 89 34 RSP: 0018:ffff88806ce09710 EFLAGS: 00000202 RAX: 0000000000000002 RBX: ffff88806ce097f8 RCX: ffffffff860b9001 RDX: 0000000000000000 RSI: ffffffff818372d4 RDI: ffff88806ce09804 RBP: 0000000000000000 R08: ffffffff860b902a R09: ffff88806ce09770 R10: 0000000000038001 R11: 0000000000000001 R12: ffff88806ce097f8 R13: 0000000000000000 R14: ffff88801bd9d040 R15: ffff88804335b980 FS: 00007f5dd7dd0700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555556f9ac58 CR3: 0000000047f8a000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: arch_stack_walk+0x77/0xf0 stack_trace_save+0x90/0xd0 set_track_prepare+0x74/0xd0 __create_object+0x3b2/0xc90 __kmem_cache_alloc_node+0x1ed/0x310 __kmalloc_node_track_caller+0x43/0xb0 kmalloc_reserve+0xf2/0x230 __alloc_skb+0x129/0x330 skb_copy+0x13d/0x3f0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb08/0x1330 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x567/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x258/0x8a2 __irq_exit_rcu+0xcc/0x110 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:qlist_free_all+0xc7/0x1a0 Code: 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 69 36 aa 03 48 8b 48 08 48 89 c2 f6 c1 01 0f 85 ba 00 00 00 0f 1f 44 00 00 48 8b 02 c4 02 b8 00 00 00 00 48 0f 44 d0 4c 8b 72 08 e9 50 ff ff ff 49 RSP: 0018:ffff88803e6877b8 EFLAGS: 00000202 RAX: 0100000000010200 RBX: ffff8880457ff800 RCX: ffffea000115fe01 RDX: ffffea000115fe00 RSI: 0000000000000000 RDI: ffffffff817f6eb3 RBP: 0000000000000000 R08: ffff8880457ff800 R09: 0000000000000001 R10: fffffbfff0ba4f92 R11: 0000000000000001 R12: dffffc0000000000 R13: ffff88803e6877f8 R14: 0000000000000000 R15: ffff8880457fe000 kasan_quarantine_reduce+0x196/0x230 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc+0x172/0x320 __create_object+0x3c/0xc90 kmem_cache_alloc+0x204/0x320 __kernfs_new_node+0xd4/0x870 kernfs_new_node+0x97/0x120 __kernfs_create_file+0x55/0x350 sysfs_add_file_mode_ns+0x21c/0x440 internal_create_group+0x322/0xb90 internal_create_groups.part.0+0x90/0x140 sysfs_create_groups+0x29/0x50 device_add+0x672/0x1ab0 device_add_disk+0x389/0x1140 loop_add+0x840/0xad0 loop_control_ioctl+0x232/0x640 __x64_sys_ioctl+0x19e/0x210 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f5dda85ab19 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:00007f5dd7dd0188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f5dda96df60 RCX: 00007f5dda85ab19 RDX: 0000000000000000 RSI: 0000000000004c82 RDI: 0000000000000009 RBP: 00007f5dda8b4f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffeb6ba59af R14: 00007f5dd7dd0300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.2.0-next-20230227 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xc50 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 d5 09 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 3e 1f 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e4 00 00 RSP: 0018:ffff88806cf09a28 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff844a600b RDX: fffffbfff0b4ad85 RSI: 0000000000000004 RDI: ffffffff85a56c20 RBP: ffffffff85a56c20 R08: 0000000000000000 R09: ffffffff85a56c23 R10: fffffbfff0b4ad84 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b4ad84 R14: 0000000000000001 R15: 1ffff1100d9e1346 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555560c58 CR3: 00000000168b2000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6de/0x1330 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x567/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x258/0x8a2 __irq_exit_rcu+0xcc/0x110 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:default_idle+0xf/0x20 Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d e3 15 3a 00 fb f4 e9 5f 13 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff888008e1fe70 EFLAGS: 00000202 RAX: 00000000009c051f RBX: ffff888008da5040 RCX: ffffffff84485c3e RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812847a0 RBP: 0000000000000001 R08: 0000000000000001 R09: ffff88806cf34f83 R10: ffffed100d9e69f0 R11: 0000000000000001 R12: ffffed10011b4a08 R13: ffffffff85d27c90 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x67/0xa0 do_idle+0x300/0x3d0 cpu_startup_entry+0x18/0x20 start_secondary+0x1ca/0x220 secondary_startup_64_no_verify+0xe0/0xeb ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 48 89 ea mov %rbp,%rdx 3: 48 c1 ea 03 shr $0x3,%rdx 7: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) b: 75 64 jne 0x71 d: 48 89 75 00 mov %rsi,0x0(%rbp) 11: 8b 43 08 mov 0x8(%rbx),%eax 14: 39 43 10 cmp %eax,0x10(%rbx) 17: 0f 92 c0 setb %al 1a: 48 83 c4 08 add $0x8,%rsp 1e: 5b pop %rbx 1f: 5d pop %rbp 20: e9 73 32 10 03 jmpq 0x3103298 25: 83 e8 01 sub $0x1,%eax * 28: 89 43 0c mov %eax,0xc(%rbx) <-- trapping instruction 2b: 48 83 c4 08 add $0x8,%rsp 2f: b8 01 00 00 00 mov $0x1,%eax 34: 5b pop %rbx 35: 5d pop %rbp 36: e9 5d 32 10 03 jmpq 0x3103298 3b: 48 rex.W 3c: 89 .byte 0x89 3d: 34 .byte 0x34