loop6: detected capacity change from 0 to 512 loop7: detected capacity change from 0 to 512 workqueue: Failed to create a rescuer kthread for wq "ext4-rsv-conversion": -EINTR EXT4-fs: failed to create workqueue EXT4-fs (loop4): mount failed watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.6:17795] Modules linked in: irq event stamp: 2225055 hardirqs last enabled at (2225054): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2225055): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2195412): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2195425): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 17795 Comm: syz-executor.6 Not tainted 6.13.0-rc1-next-20241203 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0xa6d/0x2490 Code: 00 00 4c 89 ff 4c 89 44 24 20 48 89 4c 24 18 48 89 74 24 10 e8 c4 f3 ff ff 4d 8d 4f 40 84 c0 0f 84 9e f8 ff ff 48 8b 74 24 10 <48> 89 f7 e8 ab eb ff ff 48 89 ef 48 8b 74 24 10 48 ba 00 00 00 00 RSP: 0018:ffff88806ce097c0 EFLAGS: 00000202 RAX: ffff88806ce0a001 RBX: 0000000000000002 RCX: 0000000000000002 RDX: ffff88806ce09c01 RSI: ffff88806ce09c98 RDI: ffff88806ce09840 RBP: ffff88806ce09888 R08: ffffffff86aea18e R09: ffff88806ce09870 R10: 000000000003c001 R11: 0000000000095ea7 R12: ffff88806ce09890 R13: ffff88806ce09878 R14: ffff88806ce09ca0 R15: ffff88806ce09830 FS: 00007f64bc98f700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f74fa722000 CR3: 000000002bc44000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_record_aux_stack+0x89/0xa0 __call_rcu_common.constprop.0+0x6a/0xaa0 kmem_cache_free+0x2ae/0x470 kfree_skbmem+0x18a/0x1f0 consume_skb+0xdd/0x160 mac80211_hwsim_tx_frame+0x1f6/0x2a0 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:qlist_free_all+0x28/0x160 Code: 90 90 48 8b 07 48 85 c0 0f 84 41 01 00 00 41 57 41 56 41 55 49 89 fd 41 54 49 89 f4 55 53 eb 3e 48 63 95 c0 00 00 00 48 8b 18 <48> 89 ef 48 29 d0 48 89 c6 49 89 c6 e8 77 f0 ff ff 49 89 c7 66 90 RSP: 0018:ffff88803f9af6b0 EFLAGS: 00000246 RAX: ffff88800a30a640 RBX: ffff888015d78338 RCX: ffffea000028c280 RDX: 0000000000000000 RSI: ffff888008c41780 RDI: 0000000000080000 RBP: ffff888008c41780 R08: ffff88800c2bb5c8 R09: 00000000000d000a R10: ffffea000030ae00 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88803f9af6e8 R14: ffff88800c2bb5c8 R15: ffff88800c2bb5c8 kasan_quarantine_reduce+0x19f/0x240 __kasan_kmalloc+0x6f/0x90 __kmalloc_node_track_caller_noprof+0x1ef/0x490 kvasprintf+0xbe/0x160 __kthread_create_on_node+0x187/0x3c0 kthread_create_on_node+0xbf/0x100 ext4_register_li_request+0x514/0x8c0 ext4_fill_super+0x8ad3/0xb420 get_tree_bdev_flags+0x38c/0x620 vfs_get_tree+0x93/0x340 path_mount+0x13b2/0x1ec0 __x64_sys_mount+0x283/0x300 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f64bf41b04a Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007f64bc98efa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f64bf41b04a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f64bc98f000 RBP: 00007f64bc98f040 R08: 00007f64bc98f040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f64bc98f000 R15: 0000000020012c00 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 101 PID: 126 Comm: systemd-timesyn Not tainted 6.13.0-rc1-next-20241203 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:cgroup_sk_alloc+0x2c2/0xa40 Code: c6 05 ba 0e f2 04 01 e8 fc ae e4 ff e9 d3 fe ff ff e8 c2 10 07 00 e8 0d 8d ed ff 31 ff 41 89 c6 89 c6 e8 e1 13 07 00 45 85 f6 <0f> 85 12 fe ff ff e8 a3 10 07 00 be ff ff ff ff 48 c7 c7 08 71 c5 RSP: 0018:ffff88800c387d18 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff888038f2df58 RCX: ffffffff814acf9f RDX: ffff88801592d280 RSI: 0000000000000000 RDI: 0000000000000005 RBP: dffffc0000000000 R08: 0000000000000000 R09: fffffbfff0fde1e4 R10: 0000000000000000 R11: 00000000000c3a26 R12: ffff88800de3d800 R13: ffff88801592d280 R14: 0000000000000000 R15: 0000000000000025 FS: 00007f0171e40900(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f50a2d0ce88 CR3: 000000000dd24000 CR4: 0000000000350ef0 Call Trace: sk_alloc+0x2aa/0xb50 unix_create1+0xaa/0x8c0 unix_create+0x114/0x220 __sock_create+0x369/0x810 __sys_socket+0x147/0x260 __x64_sys_socket+0x73/0xb0 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0172736477 Code: 73 01 c3 48 8b 0d 19 ea 0b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e9 e9 0b 00 f7 d8 64 89 01 48 RSP: 002b:00007fffbe783ba8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 000055c025b58650 RCX: 00007f0172736477 RDX: 0000000000000000 RSI: 0000000000080002 RDI: 0000000000000001 RBP: 00007fffbe783cd0 R08: 0000000000000000 R09: 000000000000000c R10: 00007fffbe783c10 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000016 EXT4-fs (loop7): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop7): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs (loop6): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop6): unmounting filesystem 00000000-0000-0000-0000-000000000000. ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 4c 89 ff mov %r15,%rdi 5: 4c 89 44 24 20 mov %r8,0x20(%rsp) a: 48 89 4c 24 18 mov %rcx,0x18(%rsp) f: 48 89 74 24 10 mov %rsi,0x10(%rsp) 14: e8 c4 f3 ff ff callq 0xfffff3dd 19: 4d 8d 4f 40 lea 0x40(%r15),%r9 1d: 84 c0 test %al,%al 1f: 0f 84 9e f8 ff ff je 0xfffff8c3 25: 48 8b 74 24 10 mov 0x10(%rsp),%rsi * 2a: 48 89 f7 mov %rsi,%rdi <-- trapping instruction 2d: e8 ab eb ff ff callq 0xffffebdd 32: 48 89 ef mov %rbp,%rdi 35: 48 8b 74 24 10 mov 0x10(%rsp),%rsi 3a: 48 rex.W 3b: ba 00 00 00 00 mov $0x0,%edx