./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor843691053 <...> Warning: Permanently added '10.128.0.95' (ED25519) to the list of known hosts. execve("./syz-executor843691053", ["./syz-executor843691053"], 0x7fff95c8d240 /* 10 vars */) = 0 brk(NULL) = 0x55556ef2b000 brk(0x55556ef2bd00) = 0x55556ef2bd00 arch_prctl(ARCH_SET_FS, 0x55556ef2b380) = 0 set_tid_address(0x55556ef2b650) = 5841 set_robust_list(0x55556ef2b660, 24) = 0 rseq(0x55556ef2bca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor843691053", 4096) = 27 getrandom("\x23\x4f\xd2\xb3\xab\xc7\xa6\x9f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556ef2bd00 brk(0x55556ef4cd00) = 0x55556ef4cd00 brk(0x55556ef4d000) = 0x55556ef4d000 mprotect(0x7fb948630000, 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 5842 attached [pid 5842] set_robust_list(0x55556ef2b660, 24) = 0 [pid 5842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5842] setpgid(0, 0) = 0 [pid 5842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5841] <... clone resumed>, child_tidptr=0x55556ef2b650) = 5842 [pid 5842] <... openat resumed>) = 3 [pid 5842] write(3, "1000", 4) = 4 [pid 5842] close(3) = 0 [pid 5842] write(1, "executing program\n", 18executing program ) = 18 [pid 5842] memfd_create("syzkaller", 0) = 3 [pid 5842] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb940000000 [pid 5842] 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 5842] munmap(0x7fb940000000, 138412032) = 0 [pid 5842] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5842] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5842] close(3) = 0 [pid 5842] close(4) = 0 [pid 5842] mkdir("./file0", 0777) = 0 [ 109.482937][ T5842] loop0: detected capacity change from 0 to 32768 [ 109.595919][ T5842] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,foreground_target=invalid label 767,background_target=invalid device 7,nojournal_transaction_names [ 109.595919][ T5842] allowing incompatible features above 0.0: (unknown version) [ 109.595919][ T5842] features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes [ 109.640317][ T5842] bcachefs (loop0): Using encoding defined by superblock: utf8-12.1.0 [ 109.649054][ T5842] bcachefs (loop0): initializing new filesystem [ 109.664734][ T5842] bcachefs (loop0): going read-write [ 109.695447][ T5851] ODEBUG: object ffffc90003f2fa98 is on stack ffffc90003f28000, but NOT annotated. [ 109.695901][ T5851] [ 109.695911][ T5851] ====================================================== [ 109.695925][ T5851] WARNING: possible circular locking dependency detected [ 109.695939][ T5851] 6.16.0-rc1-syzkaller #0 Not tainted [ 109.695959][ T5851] ------------------------------------------------------ [ 109.695972][ T5851] bch-copygc/loop/5851 is trying to acquire lock: [ 109.695989][ T5851] ffffffff8e4d1dc0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x9f/0xd0 [ 109.696072][ T5851] [ 109.696072][ T5851] but task is already holding lock: [ 109.696081][ T5851] ffffffff9af6a5b8 (&obj_hash[i].lock){-.-.}-{2:2}, at: __debug_object_init+0xec/0x3d0 [ 109.696146][ T5851] [ 109.696146][ T5851] which lock already depends on the new lock. [ 109.696146][ T5851] [ 109.696154][ T5851] [ 109.696154][ T5851] the existing dependency chain (in reverse order) is: [ 109.696164][ T5851] [ 109.696164][ T5851] -> #4 (&obj_hash[i].lock){-.-.}-{2:2}: [ 109.696200][ T5851] _raw_spin_lock_irqsave+0x3a/0x60 [ 109.696244][ T5851] debug_object_activate+0x14c/0x4c0 [ 109.696278][ T5851] insert_work+0x2e/0x230 [ 109.696302][ T5851] __queue_work+0x97e/0x10f0 [ 109.696327][ T5851] queue_work_on+0x15f/0x1f0 [ 109.696353][ T5851] start_poll_synchronize_rcu_expedited+0x113/0x190 [ 109.696394][ T5851] rcu_init+0xe95/0x1630 [ 109.696436][ T5851] start_kernel+0x1df/0x4d0 [ 109.696477][ T5851] x86_64_start_reservations+0x18/0x30 [ 109.696513][ T5851] x86_64_start_kernel+0x130/0x190 [ 109.696549][ T5851] common_startup_64+0x13e/0x148 [ 109.696595][ T5851] [ 109.696595][ T5851] -> #3 (&pool->lock){-.-.}-{2:2}: [ 109.696631][ T5851] _raw_spin_lock+0x2e/0x40 [ 109.696668][ T5851] __queue_work+0x26b/0x10f0 [ 109.696694][ T5851] queue_work_on+0x15f/0x1f0 [ 109.696719][ T5851] rpm_suspend+0xeba/0x11d0 [ 109.696762][ T5851] rpm_idle+0x5b4/0x730 [ 109.696803][ T5851] __pm_runtime_idle+0xba/0x1a0 [ 109.696845][ T5851] __device_attach+0x37e/0x4b0 [ 109.696888][ T5851] bus_probe_device+0x17f/0x1c0 [ 109.696925][ T5851] device_add+0x1148/0x1a70 [ 109.696952][ T5851] serial_base_port_add+0x357/0x4b0 [ 109.696982][ T5851] serial_core_register_port+0x13c/0x2570 [ 109.697010][ T5851] serial8250_register_8250_port+0x159b/0x23c0 [ 109.697049][ T5851] serial_pnp_probe+0x431/0x910 [ 109.697086][ T5851] pnp_device_probe+0x2a8/0x4d0 [ 109.697115][ T5851] really_probe+0x241/0xa90 [ 109.697155][ T5851] __driver_probe_device+0x1de/0x440 [ 109.697198][ T5851] driver_probe_device+0x4c/0x1b0 [ 109.697240][ T5851] __driver_attach+0x283/0x580 [ 109.697282][ T5851] bus_for_each_dev+0x13e/0x1d0 [ 109.697314][ T5851] bus_add_driver+0x2e9/0x690 [ 109.697351][ T5851] driver_register+0x15c/0x4b0 [ 109.697375][ T5851] serial8250_init+0xc9/0x1e0 [ 109.697411][ T5851] do_one_initcall+0x123/0x6e0 [ 109.697438][ T5851] kernel_init_freeable+0x5c2/0x900 [ 109.697479][ T5851] kernel_init+0x1c/0x2b0 [ 109.697511][ T5851] ret_from_fork+0x5d7/0x6f0 [ 109.697551][ T5851] ret_from_fork_asm+0x1a/0x30 [ 109.697578][ T5851] [ 109.697578][ T5851] -> #2 (&dev->power.lock){-...}-{3:3}: [ 109.697614][ T5851] _raw_spin_lock_irqsave+0x3a/0x60 [ 109.697654][ T5851] __pm_runtime_resume+0xa9/0x170 [ 109.697698][ T5851] __uart_start+0x1b0/0x4c0 [ 109.697733][ T5851] uart_write+0x218/0xb30 [ 109.697756][ T5851] n_tty_write+0x412/0x1160 [ 109.697786][ T5851] file_tty_write.constprop.0+0x504/0x9b0 [ 109.697831][ T5851] redirected_tty_write+0xd4/0x150 [ 109.697875][ T5851] vfs_write+0x6c7/0x1150 [ 109.697903][ T5851] ksys_write+0x12a/0x250 [ 109.697931][ T5851] do_syscall_64+0xcd/0x4c0 [ 109.697955][ T5851] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 109.697984][ T5851] [ 109.697984][ T5851] -> #1 (&port_lock_key){-.-.}-{3:3}: [ 109.698020][ T5851] _raw_spin_lock_irqsave+0x3a/0x60 [ 109.698060][ T5851] serial8250_console_write+0x181/0x1890 [ 109.698093][ T5851] console_flush_all+0x801/0xc60 [ 109.698125][ T5851] console_unlock+0xd8/0x210 [ 109.698155][ T5851] vprintk_emit+0x418/0x6d0 [ 109.698187][ T5851] _printk+0xc7/0x100 [ 109.698229][ T5851] register_console+0xc2d/0x11b0 [ 109.698263][ T5851] univ8250_console_init+0x5f/0x90 [ 109.698298][ T5851] console_init+0x14f/0x680 [ 109.698334][ T5851] start_kernel+0x29f/0x4d0 [ 109.698367][ T5851] x86_64_start_reservations+0x18/0x30 [ 109.698404][ T5851] x86_64_start_kernel+0x130/0x190 [ 109.698440][ T5851] common_startup_64+0x13e/0x148 [ 109.698490][ T5851] [ 109.698490][ T5851] -> #0 (console_owner){....}-{0:0}: [ 109.698526][ T5851] __lock_acquire+0x126f/0x1c90 [ 109.698568][ T5851] lock_acquire+0x179/0x350 [ 109.698610][ T5851] console_lock_spinning_enable+0xb0/0xd0 [ 109.698641][ T5851] console_flush_all+0x7aa/0xc60 [ 109.698672][ T5851] console_unlock+0xd8/0x210 [ 109.698702][ T5851] vprintk_emit+0x418/0x6d0 [ 109.698734][ T5851] _printk+0xc7/0x100 [ 109.698776][ T5851] lookup_object_or_alloc.part.0+0x3d7/0x590 [ 109.698807][ T5851] __debug_object_init+0x2a9/0x3d0 [ 109.698836][ T5851] __init_work+0x4c/0x60 [ 109.698875][ T5851] rhashtable_init_noprof+0x49f/0x7e0 [ 109.698916][ T5851] bch2_copygc_thread+0xf6/0xdd0 [ 109.698954][ T5851] kthread+0x3c5/0x780 [ 109.698996][ T5851] ret_from_fork+0x5d7/0x6f0 [ 109.699036][ T5851] ret_from_fork_asm+0x1a/0x30 [ 109.699064][ T5851] [ 109.699064][ T5851] other info that might help us debug this: [ 109.699064][ T5851] [ 109.699072][ T5851] Chain exists of: [ 109.699072][ T5851] console_owner --> &pool->lock --> &obj_hash[i].lock [ 109.699072][ T5851] [ 109.699114][ T5851] Possible unsafe locking scenario: [ 109.699114][ T5851] [ 109.699122][ T5851] CPU0 CPU1 [ 109.699129][ T5851] ---- ---- [ 109.699137][ T5851] lock(&obj_hash[i].lock); [ 109.699155][ T5851] lock(&pool->lock); [ 109.699174][ T5851] lock(&obj_hash[i].lock); [ 109.699194][ T5851] lock(console_owner); [ 109.699211][ T5851] [ 109.699211][ T5851] *** DEADLOCK *** [ 109.699211][ T5851] [ 109.699218][ T5851] 3 locks held by bch-copygc/loop/5851: [ 109.699234][ T5851] #0: ffffffff9af6a5b8 (&obj_hash[i].lock){-.-.}-{2:2}, at: __debug_object_init+0xec/0x3d0 [ 109.699303][ T5851] #1: ffffffff8e5b2200 (console_lock){+.+.}-{0:0}, at: _printk+0xc7/0x100 [ 109.699384][ T5851] #2: ffffffff8e5b2270 (console_srcu){....}-{0:0}, at: console_flush_all+0x158/0xc60 [ 109.699454][ T5851] [ 109.699454][ T5851] stack backtrace: [ 109.699469][ T5851] CPU: 0 UID: 0 PID: 5851 Comm: bch-copygc/loop Not tainted 6.16.0-rc1-syzkaller #0 PREEMPT(full) [ 109.699503][ T5851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.699520][ T5851] Call Trace: [ 109.699528][ T5851] [ 109.699539][ T5851] dump_stack_lvl+0x116/0x1f0 [ 109.699587][ T5851] print_circular_bug+0x275/0x350 [ 109.699632][ T5851] check_noncircular+0x14c/0x170 [ 109.699680][ T5851] __lock_acquire+0x126f/0x1c90 [ 109.699731][ T5851] lock_acquire+0x179/0x350 [ 109.699775][ T5851] ? console_lock_spinning_enable+0x9f/0xd0 [ 109.699810][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 109.699849][ T5851] console_lock_spinning_enable+0xb0/0xd0 [ 109.699882][ T5851] ? console_lock_spinning_enable+0x9f/0xd0 [ 109.699915][ T5851] console_flush_all+0x7aa/0xc60 [ 109.699953][ T5851] ? __pfx_console_flush_all+0x10/0x10 [ 109.699992][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 109.700028][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 109.700062][ T5851] ? is_printk_cpu_sync_owner+0x32/0x40 [ 109.700104][ T5851] console_unlock+0xd8/0x210 [ 109.700137][ T5851] ? __pfx_console_unlock+0x10/0x10 [ 109.700169][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 109.700204][ T5851] ? do_raw_spin_unlock+0x100/0x230 [ 109.700236][ T5851] ? _printk+0xc7/0x100 [ 109.700280][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 109.700315][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 109.700352][ T5851] vprintk_emit+0x418/0x6d0 [ 109.700387][ T5851] ? __pfx_vprintk_emit+0x10/0x10 [ 109.700424][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 109.700465][ T5851] _printk+0xc7/0x100 [ 109.700510][ T5851] ? __pfx__printk+0x10/0x10 [ 109.700557][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 109.700592][ T5851] ? do_raw_spin_lock+0x12c/0x2b0 [ 109.700622][ T5851] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 109.700655][ T5851] lookup_object_or_alloc.part.0+0x3d7/0x590 [ 109.700692][ T5851] __debug_object_init+0x2a9/0x3d0 [ 109.700723][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 109.700760][ T5851] ? __pfx___debug_object_init+0x10/0x10 [ 109.700801][ T5851] __init_work+0x4c/0x60 [ 109.700843][ T5851] rhashtable_init_noprof+0x49f/0x7e0 [ 109.700884][ T5851] ? __lock_acquire+0xb8a/0x1c90 [ 109.700929][ T5851] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 109.700969][ T5851] bch2_copygc_thread+0xf6/0xdd0 [ 109.701008][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 109.701046][ T5851] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 109.701086][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 109.701120][ T5851] ? lock_acquire+0x179/0x350 [ 109.701172][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 109.701209][ T5851] ? __pfx_rhashtable_jhash2+0x10/0x10 [ 109.701271][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 109.701306][ T5851] ? rcu_is_watching+0x12/0xc0 [ 109.701341][ T5851] ? finish_task_switch.isra.0+0x221/0xc10 [ 109.701377][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 109.701412][ T5851] ? lockdep_hardirqs_on+0x7c/0x110 [ 109.701465][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 109.701500][ T5851] ? finish_task_switch.isra.0+0x221/0xc10 [ 109.701559][ T5851] ? rcu_is_watching+0x12/0xc0 [ 109.701593][ T5851] ? _raw_spin_unlock_irqrestore+0x52/0x80 [ 109.701637][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 109.701672][ T5851] ? lockdep_hardirqs_on+0x7c/0x110 [ 109.701718][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 109.701753][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 109.701788][ T5851] ? __kthread_parkme+0x19e/0x250 [ 109.701829][ T5851] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 109.701869][ T5851] kthread+0x3c5/0x780 [ 109.701915][ T5851] ? __pfx_kthread+0x10/0x10 [ 109.701962][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 109.701998][ T5851] ? rcu_is_watching+0x12/0xc0 [ 109.702033][ T5851] ? __pfx_kthread+0x10/0x10 [ 109.702080][ T5851] ret_from_fork+0x5d7/0x6f0 [ 109.702121][ T5851] ? __pfx_kthread+0x10/0x10 [ 109.702168][ T5851] ret_from_fork_asm+0x1a/0x30 [ 109.702207][ T5851] [ 110.733964][ T5851] ------------[ cut here ]------------ [ 110.739422][ T5851] WARNING: CPU: 0 PID: 5851 at lib/debugobjects.c:655 lookup_object_or_alloc.part.0+0x2b1/0x590 [ 110.749901][ T5851] Modules linked in: [ 110.753811][ T5851] CPU: 0 UID: 0 PID: 5851 Comm: bch-copygc/loop Not tainted 6.16.0-rc1-syzkaller #0 PREEMPT(full) [ 110.764513][ T5851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.774580][ T5851] RIP: 0010:lookup_object_or_alloc.part.0+0x2b1/0x590 [ 110.781472][ T5851] Code: 0e 48 8d 7d 20 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 58 02 00 00 48 8b 55 20 4c 89 e6 48 c7 c7 e0 66 15 8c e8 a0 ea bb fc 90 <0f> 0b 90 48 83 c4 18 48 89 d8 5b 5d 41 5c 41 5d 41 5e 41 5f e9 d1 [ 110.801111][ T5851] RSP: 0018:ffffc90003f2f7b0 EFLAGS: 00010086 [ 110.807199][ T5851] RAX: 0000000000000050 RBX: ffff88802ab2f118 RCX: ffffffff819b01d9 [ 110.815224][ T5851] RDX: 0000000000000000 RSI: ffffffff819b8066 RDI: 0000000000000005 [ 110.823216][ T5851] RBP: ffff88802b5b1e00 R08: 0000000000000005 R09: 0000000000000000 [ 110.831214][ T5851] R10: 0000000080000001 R11: 0000000035383554 R12: ffffc90003f2fa98 [ 110.839197][ T5851] R13: ffff88802b5b1e00 R14: 0000000000000000 R15: 0000000000000000 [ 110.847188][ T5851] FS: 0000000000000000(0000) GS:ffff88812475b000(0000) knlGS:0000000000000000 [ 110.856166][ T5851] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 110.862775][ T5851] CR2: 00007f97e6b81000 CR3: 0000000077614000 CR4: 0000000000350ef0 [ 110.870854][ T5851] Call Trace: [ 110.874144][ T5851] [ 110.877087][ T5851] __debug_object_init+0x2a9/0x3d0 [ 110.882230][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 110.887897][ T5851] ? __pfx___debug_object_init+0x10/0x10 [ 110.893569][ T5851] __init_work+0x4c/0x60 [ 110.897855][ T5851] rhashtable_init_noprof+0x49f/0x7e0 [ 110.903265][ T5851] ? __lock_acquire+0xb8a/0x1c90 [ 110.908402][ T5851] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 110.914010][ T5851] bch2_copygc_thread+0xf6/0xdd0 [ 110.918986][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 110.924660][ T5851] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 110.930250][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 110.935917][ T5851] ? lock_acquire+0x179/0x350 [ 110.940652][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 110.946327][ T5851] ? __pfx_rhashtable_jhash2+0x10/0x10 [ 110.951853][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 110.957520][ T5851] ? rcu_is_watching+0x12/0xc0 [ 110.962315][ T5851] ? finish_task_switch.isra.0+0x221/0xc10 [ 110.968175][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 110.973860][ T5851] ? lockdep_hardirqs_on+0x7c/0x110 [ 110.979108][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 110.984775][ T5851] ? finish_task_switch.isra.0+0x221/0xc10 [ 110.990645][ T5851] ? rcu_is_watching+0x12/0xc0 [ 110.995446][ T5851] ? _raw_spin_unlock_irqrestore+0x52/0x80 [ 111.001313][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 111.006989][ T5851] ? lockdep_hardirqs_on+0x7c/0x110 [ 111.012247][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 111.017929][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 111.023614][ T5851] ? __kthread_parkme+0x19e/0x250 [ 111.028690][ T5851] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 111.034309][ T5851] kthread+0x3c5/0x780 [ 111.038426][ T5851] ? __pfx_kthread+0x10/0x10 [ 111.043064][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 111.048729][ T5851] ? rcu_is_watching+0x12/0xc0 [ 111.053522][ T5851] ? __pfx_kthread+0x10/0x10 [ 111.058154][ T5851] ret_from_fork+0x5d7/0x6f0 [ 111.062784][ T5851] ? __pfx_kthread+0x10/0x10 [ 111.067414][ T5851] ret_from_fork_asm+0x1a/0x30 [ 111.072213][ T5851] [ 111.075241][ T5851] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 111.082532][ T5851] CPU: 0 UID: 0 PID: 5851 Comm: bch-copygc/loop Not tainted 6.16.0-rc1-syzkaller #0 PREEMPT(full) [ 111.093269][ T5851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.103339][ T5851] Call Trace: [ 111.106626][ T5851] [ 111.109567][ T5851] dump_stack_lvl+0x3d/0x1f0 [ 111.114207][ T5851] panic+0x71c/0x800 [ 111.118145][ T5851] ? __pfx_panic+0x10/0x10 [ 111.122601][ T5851] ? show_trace_log_lvl+0x29b/0x3e0 [ 111.127842][ T5851] ? check_panic_on_warn+0x1f/0xb0 [ 111.132996][ T5851] ? lookup_object_or_alloc.part.0+0x2b1/0x590 [ 111.139178][ T5851] check_panic_on_warn+0xab/0xb0 [ 111.144158][ T5851] __warn+0xf6/0x3c0 [ 111.148096][ T5851] ? lookup_object_or_alloc.part.0+0x2b1/0x590 [ 111.154277][ T5851] report_bug+0x3c3/0x580 [ 111.158643][ T5851] ? lookup_object_or_alloc.part.0+0x2b1/0x590 [ 111.164841][ T5851] handle_bug+0x184/0x210 [ 111.169226][ T5851] exc_invalid_op+0x17/0x50 [ 111.173781][ T5851] asm_exc_invalid_op+0x1a/0x20 [ 111.178654][ T5851] RIP: 0010:lookup_object_or_alloc.part.0+0x2b1/0x590 [ 111.185446][ T5851] Code: 0e 48 8d 7d 20 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 58 02 00 00 48 8b 55 20 4c 89 e6 48 c7 c7 e0 66 15 8c e8 a0 ea bb fc 90 <0f> 0b 90 48 83 c4 18 48 89 d8 5b 5d 41 5c 41 5d 41 5e 41 5f e9 d1 [ 111.205090][ T5851] RSP: 0018:ffffc90003f2f7b0 EFLAGS: 00010086 [ 111.211189][ T5851] RAX: 0000000000000050 RBX: ffff88802ab2f118 RCX: ffffffff819b01d9 [ 111.219189][ T5851] RDX: 0000000000000000 RSI: ffffffff819b8066 RDI: 0000000000000005 [ 111.227285][ T5851] RBP: ffff88802b5b1e00 R08: 0000000000000005 R09: 0000000000000000 [ 111.235303][ T5851] R10: 0000000080000001 R11: 0000000035383554 R12: ffffc90003f2fa98 [ 111.243305][ T5851] R13: ffff88802b5b1e00 R14: 0000000000000000 R15: 0000000000000000 [ 111.251305][ T5851] ? __wake_up_klogd.part.0+0x99/0xf0 [ 111.256709][ T5851] ? vprintk_emit+0x1e6/0x6d0 [ 111.261423][ T5851] __debug_object_init+0x2a9/0x3d0 [ 111.266654][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 111.272332][ T5851] ? __pfx___debug_object_init+0x10/0x10 [ 111.278013][ T5851] __init_work+0x4c/0x60 [ 111.282310][ T5851] rhashtable_init_noprof+0x49f/0x7e0 [ 111.287761][ T5851] ? __lock_acquire+0xb8a/0x1c90 [ 111.292785][ T5851] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 111.298526][ T5851] bch2_copygc_thread+0xf6/0xdd0 [ 111.303515][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 111.309196][ T5851] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 111.314853][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 111.320523][ T5851] ? lock_acquire+0x179/0x350 [ 111.325252][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 111.330922][ T5851] ? __pfx_rhashtable_jhash2+0x10/0x10 [ 111.336442][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 111.342107][ T5851] ? rcu_is_watching+0x12/0xc0 [ 111.346925][ T5851] ? finish_task_switch.isra.0+0x221/0xc10 [ 111.352770][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 111.358449][ T5851] ? lockdep_hardirqs_on+0x7c/0x110 [ 111.363699][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 111.369363][ T5851] ? finish_task_switch.isra.0+0x221/0xc10 [ 111.375251][ T5851] ? rcu_is_watching+0x12/0xc0 [ 111.380081][ T5851] ? _raw_spin_unlock_irqrestore+0x52/0x80 [ 111.385929][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 111.391593][ T5851] ? lockdep_hardirqs_on+0x7c/0x110 [ 111.396838][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 111.402517][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 111.408189][ T5851] ? __kthread_parkme+0x19e/0x250 [ 111.413260][ T5851] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 111.418843][ T5851] kthread+0x3c5/0x780 [ 111.422960][ T5851] ? __pfx_kthread+0x10/0x10 [ 111.427618][ T5851] ? srso_alias_return_thunk+0x5/0xfbef5 [ 111.433286][ T5851] ? rcu_is_watching+0x12/0xc0 [ 111.438082][ T5851] ? __pfx_kthread+0x10/0x10 [ 111.442717][ T5851] ret_from_fork+0x5d7/0x6f0 [ 111.447346][ T5851] ? __pfx_kthread+0x10/0x10 [ 111.451977][ T5851] ret_from_fork_asm+0x1a/0x30 [ 111.456772][ T5851] [ 111.460082][ T5851] Kernel Offset: disabled [ 111.464470][ T5851] Rebooting in 86400 seconds..