./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3366231198 <...> Warning: Permanently added '10.128.0.195' (ED25519) to the list of known hosts. execve("./syz-executor3366231198", ["./syz-executor3366231198"], 0x7ffcb75ecb20 /* 10 vars */) = 0 brk(NULL) = 0x555568b2f000 brk(0x555568b2fd00) = 0x555568b2fd00 arch_prctl(ARCH_SET_FS, 0x555568b2f380) = 0 set_tid_address(0x555568b2f650) = 5830 set_robust_list(0x555568b2f660, 24) = 0 rseq(0x555568b2fca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3366231198", 4096) = 28 getrandom("\x31\xc9\xf5\xee\xb0\xbe\x41\x71", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555568b2fd00 brk(0x555568b50d00) = 0x555568b50d00 brk(0x555568b51000) = 0x555568b51000 mprotect(0x7f11a6449000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5832 attached [pid 5832] set_robust_list(0x555568b2f660, 24 [pid 5830] <... clone resumed>, child_tidptr=0x555568b2f650) = 5832 [pid 5832] <... set_robust_list resumed>) = 0 [pid 5832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5832] setpgid(0, 0) = 0 [pid 5832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5832] write(3, "1000", 4) = 4 [pid 5832] close(3) = 0 [pid 5832] write(1, "executing program\n", 18executing program ) = 18 [pid 5832] memfd_create("syzkaller", 0) = 3 [pid 5832] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f119de00000 [pid 5832] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5832] munmap(0x7f119de00000, 138412032) = 0 [pid 5832] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5832] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5832] close(3) = 0 [pid 5832] close(4) = 0 [pid 5832] mkdir("./file0", 0777) = 0 [ 81.873571][ T5832] loop0: detected capacity change from 0 to 32768 [ 81.991418][ T5832] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 81.991418][ T5832] allowing incompatible features above 0.0: (unknown version) [ 81.991418][ T5832] features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes [ 82.028894][ T5832] bcachefs (loop0): Using encoding defined by superblock: utf8-12.1.0 [ 82.038446][ T5832] bcachefs (loop0): recovering from clean shutdown, journal seq 13 [ 82.047719][ T5832] bcachefs (loop0): Doing compatible version upgrade from 1.7: mi_btree_bitmap to 1.28: inode_has_case_insensitive [ 82.047719][ T5832] running recovery passes: check_allocations,check_extents_to_backpointers,check_inodes [ 82.092496][ T5832] bcachefs (loop0): accounting_read... done [ 82.100962][ T5832] bcachefs (loop0): alloc_read... done [ 82.107762][ T5832] bcachefs (loop0): snapshots_read... done [ 82.115345][ T5832] bcachefs (loop0): check_allocations... [ 82.117356][ T5832] bcachefs (loop0): btree ptr not marked in member info btree allocated bitmap [ 82.117375][ T5832] u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 1818ce08861e3527 written 40 min_key POS_MIN durability: 1 ptr: 0:26:0 gen 0, fixing [ 82.151430][ T5832] bcachefs (loop0): btree ptr not marked in member info btree allocated bitmap [ 82.151448][ T5832] u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 2a20405ac3f40602 written 24 min_key POS_MIN durability: 1 ptr: 0:38:0 gen 0, fixing [ 82.177168][ T5832] bcachefs (loop0): btree ptr not marked in member info btree allocated bitmap [ 82.177184][ T5832] u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 267fcf747c875937 written 24 min_key POS_MIN durability: 1 ptr: 0:41:0 gen 0, fixing [ 82.204179][ T5832] bcachefs (loop0): btree ptr not marked in member info btree allocated bitmap [ 82.204196][ T5832] u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq d682cebdf2a7eb26 written 16 min_key POS_MIN durability: 1 ptr: 0:35:0 gen 0, fixing [ 82.231137][ T5832] bcachefs (loop0): btree ptr not marked in member info btree allocated bitmap [ 82.231154][ T5832] u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq d771a06d670df06c written 16 min_key POS_MIN durability: 1 ptr: 0:32:0 gen 0, fixing [ 82.256288][ T5832] bcachefs (loop0): btree ptr not marked in member info btree allocated bitmap [ 82.256308][ T5832] u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq b6c44d07df4e9bb7 written 48 min_key POS_MIN durability: 1 ptr: 0:29:0 gen 0, fixing [ 82.284141][ T5832] done [ 82.291086][ T5832] bcachefs (loop0): going read-write [ 82.322376][ T5843] ODEBUG: object ffffc900044bfb90 is on stack ffffc900044b8000, but NOT annotated. [ 82.322801][ T5843] [ 82.322809][ T5843] ====================================================== [ 82.322815][ T5843] WARNING: possible circular locking dependency detected [ 82.322835][ T5843] 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 Not tainted [ 82.322843][ T5843] ------------------------------------------------------ [ 82.322849][ T5843] bch-copygc/loop/5843 is trying to acquire lock: [ 82.322857][ T5843] ffffffff8e132fc0 (console_owner){....}-{0:0}, at: console_flush_all+0x13a/0xc40 [ 82.322900][ T5843] [ 82.322900][ T5843] but task is already holding lock: [ 82.322905][ T5843] ffffffff99c37ac8 (&obj_hash[i].lock){-.-.}-{2:2}, at: __debug_object_init+0x85/0x3c0 [ 82.322928][ T5843] [ 82.322928][ T5843] which lock already depends on the new lock. [ 82.322928][ T5843] [ 82.322931][ T5843] [ 82.322931][ T5843] the existing dependency chain (in reverse order) is: [ 82.322934][ T5843] [ 82.322934][ T5843] -> #4 (&obj_hash[i].lock){-.-.}-{2:2}: [ 82.322947][ T5843] lock_acquire+0x120/0x360 [ 82.322960][ T5843] _raw_spin_lock_irqsave+0xa7/0xf0 [ 82.322978][ T5843] debug_object_activate+0xbb/0x420 [ 82.323010][ T5843] insert_work+0x35/0x330 [ 82.323022][ T5843] __queue_work+0xcfc/0xfe0 [ 82.323035][ T5843] queue_work_on+0x181/0x270 [ 82.323047][ T5843] start_poll_synchronize_rcu_expedited+0xfc/0x140 [ 82.323058][ T5843] rcu_init+0x108/0x160 [ 82.323067][ T5843] start_kernel+0x1fb/0x500 [ 82.323079][ T5843] x86_64_start_reservations+0x24/0x30 [ 82.323088][ T5843] x86_64_start_kernel+0x143/0x1c0 [ 82.323096][ T5843] common_startup_64+0x13e/0x147 [ 82.323106][ T5843] [ 82.323106][ T5843] -> #3 (&pool->lock){-.-.}-{2:2}: [ 82.323119][ T5843] lock_acquire+0x120/0x360 [ 82.323129][ T5843] _raw_spin_lock+0x2e/0x40 [ 82.323139][ T5843] __queue_work+0x7b0/0xfe0 [ 82.323151][ T5843] queue_work_on+0x181/0x270 [ 82.323162][ T5843] rpm_suspend+0xe54/0x1720 [ 82.323171][ T5843] __pm_runtime_idle+0x12f/0x1a0 [ 82.323179][ T5843] __device_attach+0x342/0x400 [ 82.323188][ T5843] bus_probe_device+0x185/0x260 [ 82.323201][ T5843] device_add+0x7b6/0xb50 [ 82.323209][ T5843] serial_base_port_add+0x2f2/0x430 [ 82.323221][ T5843] serial_core_register_port+0x367/0x2700 [ 82.323235][ T5843] serial8250_register_8250_port+0x16db/0x2050 [ 82.323247][ T5843] serial_pnp_probe+0x527/0x790 [ 82.323260][ T5843] pnp_device_probe+0x30b/0x4c0 [ 82.323274][ T5843] really_probe+0x26a/0x9a0 [ 82.323283][ T5843] __driver_probe_device+0x18c/0x2f0 [ 82.323292][ T5843] driver_probe_device+0x4f/0x430 [ 82.323301][ T5843] __driver_attach+0x452/0x700 [ 82.323310][ T5843] bus_for_each_dev+0x230/0x2b0 [ 82.323322][ T5843] bus_add_driver+0x345/0x640 [ 82.323333][ T5843] driver_register+0x23a/0x320 [ 82.323344][ T5843] serial8250_init+0xc2/0x1c0 [ 82.323357][ T5843] do_one_initcall+0x233/0x820 [ 82.323365][ T5843] do_initcall_level+0x137/0x1f0 [ 82.323376][ T5843] do_initcalls+0x69/0xd0 [ 82.323387][ T5843] kernel_init_freeable+0x3d9/0x570 [ 82.323399][ T5843] kernel_init+0x1d/0x1d0 [ 82.323408][ T5843] ret_from_fork+0x3fc/0x770 [ 82.323418][ T5843] ret_from_fork_asm+0x1a/0x30 [ 82.323427][ T5843] [ 82.323427][ T5843] -> #2 (&dev->power.lock){-.-.}-{3:3}: [ 82.323439][ T5843] lock_acquire+0x120/0x360 [ 82.323449][ T5843] _raw_spin_lock_irqsave+0xa7/0xf0 [ 82.323459][ T5843] __pm_runtime_resume+0x10f/0x180 [ 82.323468][ T5843] __uart_start+0x171/0x440 [ 82.323480][ T5843] uart_write+0xdc/0x130 [ 82.323486][ T5843] n_tty_write+0xd35/0x11d0 [ 82.323497][ T5843] file_tty_write+0x500/0x990 [ 82.323510][ T5843] vfs_write+0x54b/0xa90 [ 82.323521][ T5843] ksys_write+0x145/0x250 [ 82.323529][ T5843] do_syscall_64+0xfa/0x3b0 [ 82.323536][ T5843] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 82.323545][ T5843] [ 82.323545][ T5843] -> #1 (&port_lock_key){-.-.}-{3:3}: [ 82.323557][ T5843] lock_acquire+0x120/0x360 [ 82.323567][ T5843] _raw_spin_lock_irqsave+0xa7/0xf0 [ 82.323585][ T5843] serial8250_console_write+0x17e/0x1ba0 [ 82.323595][ T5843] console_flush_all+0x728/0xc40 [ 82.323603][ T5843] console_unlock+0xc4/0x270 [ 82.323616][ T5843] vprintk_emit+0x5b7/0x7a0 [ 82.323630][ T5843] _printk+0xcf/0x120 [ 82.323638][ T5843] register_console+0xa8b/0xf90 [ 82.323646][ T5843] univ8250_console_init+0x52/0x90 [ 82.323659][ T5843] console_init+0x1a1/0x670 [ 82.323671][ T5843] start_kernel+0x2cc/0x500 [ 82.323682][ T5843] x86_64_start_reservations+0x24/0x30 [ 82.323690][ T5843] x86_64_start_kernel+0x143/0x1c0 [ 82.323698][ T5843] common_startup_64+0x13e/0x147 [ 82.323706][ T5843] [ 82.323706][ T5843] -> #0 (console_owner){....}-{0:0}: [ 82.323718][ T5843] validate_chain+0xb9b/0x2140 [ 82.323731][ T5843] __lock_acquire+0xab9/0xd20 [ 82.323743][ T5843] lock_acquire+0x120/0x360 [ 82.323753][ T5843] console_flush_all+0x6d2/0xc40 [ 82.323761][ T5843] console_unlock+0xc4/0x270 [ 82.323773][ T5843] vprintk_emit+0x5b7/0x7a0 [ 82.323785][ T5843] _printk+0xcf/0x120 [ 82.323792][ T5843] __debug_object_init+0x2c8/0x3c0 [ 82.323800][ T5843] rhashtable_init_noprof+0x7c0/0xbb0 [ 82.323814][ T5843] bch2_copygc_thread+0x116/0xdc0 [ 82.323825][ T5843] kthread+0x70e/0x8a0 [ 82.323833][ T5843] ret_from_fork+0x3fc/0x770 [ 82.323843][ T5843] ret_from_fork_asm+0x1a/0x30 [ 82.323851][ T5843] [ 82.323851][ T5843] other info that might help us debug this: [ 82.323851][ T5843] [ 82.323855][ T5843] Chain exists of: [ 82.323855][ T5843] console_owner --> &pool->lock --> &obj_hash[i].lock [ 82.323855][ T5843] [ 82.323869][ T5843] Possible unsafe locking scenario: [ 82.323869][ T5843] [ 82.323872][ T5843] CPU0 CPU1 [ 82.323875][ T5843] ---- ---- [ 82.323878][ T5843] lock(&obj_hash[i].lock); [ 82.323884][ T5843] lock(&pool->lock); [ 82.323891][ T5843] lock(&obj_hash[i].lock); [ 82.323897][ T5843] lock(console_owner); [ 82.323903][ T5843] [ 82.323903][ T5843] *** DEADLOCK *** [ 82.323903][ T5843] [ 82.323909][ T5843] 3 locks held by bch-copygc/loop/5843: [ 82.323914][ T5843] #0: ffffffff99c37ac8 (&obj_hash[i].lock){-.-.}-{2:2}, at: __debug_object_init+0x85/0x3c0 [ 82.323936][ T5843] #1: ffffffff8e133020 (console_lock){+.+.}-{0:0}, at: _printk+0xcf/0x120 [ 82.323956][ T5843] #2: ffffffff8e01a8f0 (console_srcu){....}-{0:0}, at: console_flush_all+0x13a/0xc40 [ 82.323976][ T5843] [ 82.323976][ T5843] stack backtrace: [ 82.323992][ T5843] CPU: 0 UID: 0 PID: 5843 Comm: bch-copygc/loop Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) [ 82.324004][ T5843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 82.324013][ T5843] Call Trace: [ 82.324022][ T5843] [ 82.324027][ T5843] dump_stack_lvl+0x189/0x250 [ 82.324043][ T5843] ? __pfx_dump_stack_lvl+0x10/0x10 [ 82.324056][ T5843] ? __pfx__printk+0x10/0x10 [ 82.324065][ T5843] ? print_lock_name+0xde/0x100 [ 82.324080][ T5843] print_circular_bug+0x2ee/0x310 [ 82.324095][ T5843] check_noncircular+0x134/0x160 [ 82.324110][ T5843] validate_chain+0xb9b/0x2140 [ 82.324127][ T5843] __lock_acquire+0xab9/0xd20 [ 82.324140][ T5843] ? console_flush_all+0x13a/0xc40 [ 82.324148][ T5843] lock_acquire+0x120/0x360 [ 82.324159][ T5843] ? console_flush_all+0x13a/0xc40 [ 82.324169][ T5843] ? do_raw_spin_unlock+0x122/0x240 [ 82.324178][ T5843] ? console_flush_all+0x13a/0xc40 [ 82.324187][ T5843] console_flush_all+0x6d2/0xc40 [ 82.324196][ T5843] ? console_flush_all+0x13a/0xc40 [ 82.324205][ T5843] ? console_flush_all+0x13a/0xc40 [ 82.324215][ T5843] ? __pfx_console_flush_all+0x10/0x10 [ 82.324225][ T5843] ? is_printk_cpu_sync_owner+0x32/0x40 [ 82.324236][ T5843] console_unlock+0xc4/0x270 [ 82.324250][ T5843] ? __pfx_console_unlock+0x10/0x10 [ 82.324264][ T5843] ? is_printk_cpu_sync_owner+0x32/0x40 [ 82.324274][ T5843] vprintk_emit+0x5b7/0x7a0 [ 82.324288][ T5843] ? __pfx_vprintk_emit+0x10/0x10 [ 82.324301][ T5843] ? __lock_acquire+0xab9/0xd20 [ 82.324313][ T5843] ? do_raw_spin_lock+0x121/0x290 [ 82.324324][ T5843] _printk+0xcf/0x120 [ 82.324333][ T5843] ? __pfx__printk+0x10/0x10 [ 82.324343][ T5843] __debug_object_init+0x2c8/0x3c0 [ 82.324353][ T5843] ? rhashtable_init_noprof+0x4ee/0xbb0 [ 82.324367][ T5843] rhashtable_init_noprof+0x7c0/0xbb0 [ 82.324381][ T5843] bch2_copygc_thread+0x116/0xdc0 [ 82.324392][ T5843] ? __lock_acquire+0xab9/0xd20 [ 82.324405][ T5843] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 82.324423][ T5843] ? finish_task_switch+0x266/0x950 [ 82.324435][ T5843] ? lockdep_hardirqs_on+0x9c/0x150 [ 82.324453][ T5843] ? __pfx_rhashtable_jhash2+0x10/0x10 [ 82.324473][ T5843] ? __kthread_parkme+0x7b/0x200 [ 82.324487][ T5843] ? __kthread_parkme+0x1a1/0x200 [ 82.324503][ T5843] kthread+0x70e/0x8a0 [ 82.324512][ T5843] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 82.324522][ T5843] ? __pfx_kthread+0x10/0x10 [ 82.324531][ T5843] ? _raw_spin_unlock_irq+0x23/0x50 [ 82.324543][ T5843] ? lockdep_hardirqs_on+0x9c/0x150 [ 82.324555][ T5843] ? __pfx_kthread+0x10/0x10 [ 82.324564][ T5843] ret_from_fork+0x3fc/0x770 [ 82.324590][ T5843] ? __pfx_ret_from_fork+0x10/0x10 [ 82.324603][ T5843] ? __switch_to_asm+0x39/0x70 [ 82.324611][ T5843] ? __switch_to_asm+0x33/0x70 [ 82.324619][ T5843] ? __pfx_kthread+0x10/0x10 [ 82.324627][ T5843] ret_from_fork_asm+0x1a/0x30 [ 82.324639][ T5843] [ 82.922723][ T5832] bcachefs (loop0): journal_replay... [ 82.928392][ T5843] ------------[ cut here ]------------ [ 82.945340][ T5832] done [ 82.945585][ T5843] WARNING: CPU: 0 PID: 5843 at lib/debugobjects.c:655 __debug_object_init+0x2c9/0x3c0 [ 82.953897][ T5832] bcachefs (loop0): check_extents_to_backpointers... [ 82.957796][ T5843] Modules linked in: [ 82.967055][ T5832] bcachefs (loop0): scanning for missing backpointers in 6/128 buckets [ 82.971550][ T5843] CPU: 0 UID: 0 PID: 5843 Comm: bch-copygc/loop Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) [ 82.971570][ T5843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 82.971580][ T5843] RIP: 0010:__debug_object_init+0x2c9/0x3c0 [ 82.971601][ T5843] Code: cc cc cc 41 ff c7 44 89 3d f4 2b 17 15 48 c7 c1 00 b8 e1 8b 48 c7 c7 60 b8 e1 8b 84 c0 48 0f 45 f9 48 89 de e8 28 3c 67 fc 90 <0f> 0b 90 e9 c0 fe ff ff e8 3a 1c 00 00 8b 05 0c 67 cb 09 3b 05 0a [ 82.971618][ T5843] RSP: 0018:ffffc900044bf6e0 EFLAGS: 00010046 [ 82.971633][ T5843] RAX: 0000000000000050 RBX: ffffc900044bfb90 RCX: a61acfeebd9d8300 [ 82.971645][ T5843] RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000 [ 82.971654][ T5843] RBP: ffff888033949e20 R08: ffff8880b8624293 R09: 1ffff110170c4852 [ 82.971664][ T5843] R10: dffffc0000000000 R11: ffffed10170c4853 R12: ffff8880339d8cc8 [ 82.971675][ T5843] R13: ffff888031036a48 R14: dffffc0000000000 R15: 0000000000000001 [ 82.971685][ T5843] FS: 0000000000000000(0000) GS:ffff888125c86000(0000) knlGS:0000000000000000 [ 82.971697][ T5843] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.971707][ T5843] CR2: 0000562380fd54c0 CR3: 0000000075ace000 CR4: 00000000003526f0 [ 82.971722][ T5843] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.994923][ T5832] done [ 83.000121][ T5843] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 83.000141][ T5843] Call Trace: [ 83.000148][ T5843] [ 83.000156][ T5843] ? rhashtable_init_noprof+0x4ee/0xbb0 [ 83.008052][ T5832] bcachefs (loop0): check_inodes... [ 83.018610][ T5843] rhashtable_init_noprof+0x7c0/0xbb0 [ 83.018653][ T5843] bch2_copygc_thread+0x116/0xdc0 [ 83.018674][ T5843] ? __lock_acquire+0xab9/0xd20 [ 83.030762][ T5832] done [ 83.032109][ T5843] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 83.035236][ T5832] bcachefs (loop0): resume_logged_ops... [ 83.040112][ T5843] ? finish_task_switch+0x266/0x950 [ 83.040150][ T5843] ? lockdep_hardirqs_on+0x9c/0x150 [ 83.040189][ T5843] ? __pfx_rhashtable_jhash2+0x10/0x10 [ 83.046847][ T5832] done [ 83.050138][ T5843] ? __kthread_parkme+0x7b/0x200 [ 83.050178][ T5843] ? __kthread_parkme+0x1a1/0x200 [ 83.050202][ T5843] kthread+0x70e/0x8a0 [ 83.055352][ T5832] bcachefs (loop0): delete_dead_inodes... [ 83.060179][ T5843] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 83.060211][ T5843] ? __pfx_kthread+0x10/0x10 [ 83.060229][ T5843] ? _raw_spin_unlock_irq+0x23/0x50 [ 83.066509][ T5832] done [ 83.069984][ T5843] ? lockdep_hardirqs_on+0x9c/0x150 [ 83.070017][ T5843] ? __pfx_kthread+0x10/0x10 [ 83.070035][ T5843] ret_from_fork+0x3fc/0x770 [ 83.070057][ T5843] ? __pfx_ret_from_fork+0x10/0x10 [ 83.070077][ T5843] ? __switch_to_asm+0x39/0x70 [ 83.070093][ T5843] ? __switch_to_asm+0x33/0x70 [ 83.077826][ T5832] bcachefs (loop0): Fixed errors, running fsck a second time to verify fs is clean [ 83.079858][ T5843] ? __pfx_kthread+0x10/0x10 [ 83.079885][ T5843] ret_from_fork_asm+0x1a/0x30 [ 83.079907][ T5843] [ 83.084646][ T5832] bcachefs (loop0): check_extents_to_backpointers... [ 83.089743][ T5843] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 83.089759][ T5843] CPU: 0 UID: 0 PID: 5843 Comm: bch-copygc/loop Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) [ 83.089777][ T5843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 83.089788][ T5843] Call Trace: [ 83.089796][ T5843] [ 83.089802][ T5843] dump_stack_lvl+0x99/0x250 [ 83.089832][ T5843] ? __asan_memcpy+0x40/0x70 [ 83.089850][ T5843] ? __pfx_dump_stack_lvl+0x10/0x10 [ 83.089872][ T5843] ? __pfx__printk+0x10/0x10 [ 83.089894][ T5843] panic+0x2db/0x790 [ 83.089918][ T5843] ? __pfx_panic+0x10/0x10 [ 83.089938][ T5843] ? show_trace_log_lvl+0x4fb/0x550 [ 83.089971][ T5843] ? ret_from_fork_asm+0x1a/0x30 [ 83.089989][ T5843] __warn+0x31b/0x4b0 [ 83.090009][ T5843] ? __debug_object_init+0x2c9/0x3c0 [ 83.090029][ T5843] ? __debug_object_init+0x2c9/0x3c0 [ 83.090046][ T5843] report_bug+0x2be/0x4f0 [ 83.090069][ T5843] ? __debug_object_init+0x2c9/0x3c0 [ 83.090086][ T5843] ? __debug_object_init+0x2c9/0x3c0 [ 83.090103][ T5843] ? __debug_object_init+0x2cb/0x3c0 [ 83.090119][ T5843] handle_bug+0x84/0x160 [ 83.090138][ T5843] exc_invalid_op+0x1a/0x50 [ 83.090154][ T5843] asm_exc_invalid_op+0x1a/0x20 [ 83.090172][ T5843] RIP: 0010:__debug_object_init+0x2c9/0x3c0 [ 83.090192][ T5843] Code: cc cc cc 41 ff c7 44 89 3d f4 2b 17 15 48 c7 c1 00 b8 e1 8b 48 c7 c7 60 b8 e1 8b 84 c0 48 0f 45 f9 48 89 de e8 28 3c 67 fc 90 <0f> 0b 90 e9 c0 fe ff ff e8 3a 1c 00 00 8b 05 0c 67 cb 09 3b 05 0a [ 83.090207][ T5843] RSP: 0018:ffffc900044bf6e0 EFLAGS: 00010046 [ 83.090224][ T5843] RAX: 0000000000000050 RBX: ffffc900044bfb90 RCX: a61acfeebd9d8300 [ 83.090237][ T5843] RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000 [ 83.090248][ T5843] RBP: ffff888033949e20 R08: ffff8880b8624293 R09: 1ffff110170c4852 [ 83.090261][ T5843] R10: dffffc0000000000 R11: ffffed10170c4853 R12: ffff8880339d8cc8 [ 83.090274][ T5843] R13: ffff888031036a48 R14: dffffc0000000000 R15: 0000000000000001 [ 83.090294][ T5843] ? rhashtable_init_noprof+0x4ee/0xbb0 [ 83.090321][ T5843] rhashtable_init_noprof+0x7c0/0xbb0 [ 83.090347][ T5843] bch2_copygc_thread+0x116/0xdc0 [ 83.090369][ T5843] ? __lock_acquire+0xab9/0xd20 [ 83.090407][ T5843] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 83.090442][ T5843] ? finish_task_switch+0x266/0x950 [ 83.090462][ T5843] ? lockdep_hardirqs_on+0x9c/0x150 [ 83.090490][ T5843] ? __pfx_rhashtable_jhash2+0x10/0x10 [ 83.090527][ T5843] ? __kthread_parkme+0x7b/0x200 [ 83.090551][ T5843] ? __kthread_parkme+0x1a1/0x200 [ 83.090576][ T5843] kthread+0x70e/0x8a0 [ 83.090593][ T5843] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 83.090611][ T5843] ? __pfx_kthread+0x10/0x10 [ 83.090628][ T5843] ? _raw_spin_unlock_irq+0x23/0x50 [ 83.090649][ T5843] ? lockdep_hardirqs_on+0x9c/0x150 [ 83.090670][ T5843] ? __pfx_kthread+0x10/0x10 [ 83.090686][ T5843] ret_from_fork+0x3fc/0x770 [ 83.090710][ T5843] ? __pfx_ret_from_fork+0x10/0x10 [ 83.090732][ T5843] ? __switch_to_asm+0x39/0x70 [ 83.090747][ T5843] ? __switch_to_asm+0x33/0x70 [ 83.090762][ T5843] ? __pfx_kthread+0x10/0x10 [ 83.090779][ T5843] ret_from_fork_asm+0x1a/0x30 [ 83.090800][ T5843] [ 83.096284][ T5843] Kernel Offset: disabled