./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3383865203 <...> Warning: Permanently added '10.128.0.20' (ED25519) to the list of known hosts. execve("./syz-executor3383865203", ["./syz-executor3383865203"], 0x7ffda13667d0 /* 10 vars */) = 0 brk(NULL) = 0x555568131000 brk(0x555568131d00) = 0x555568131d00 arch_prctl(ARCH_SET_FS, 0x555568131380) = 0 set_tid_address(0x555568131650) = 5823 set_robust_list(0x555568131660, 24) = 0 rseq(0x555568131ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3383865203", 4096) = 28 getrandom("\x07\x1b\xe2\xaa\x14\xfa\x3e\x08", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555568131d00 brk(0x555568152d00) = 0x555568152d00 brk(0x555568153000) = 0x555568153000 mprotect(0x7f842c8e5000, 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 5824 attached [pid 5824] set_robust_list(0x555568131660, 24) = 0 [pid 5824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5824] setpgid(0, 0) = 0 [pid 5824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5823] <... clone resumed>, child_tidptr=0x555568131650) = 5824 [pid 5824] <... openat resumed>) = 3 [pid 5824] write(3, "1000", 4executing program ) = 4 [pid 5824] close(3) = 0 [pid 5824] write(1, "executing program\n", 18) = 18 [pid 5824] memfd_create("syzkaller", 0) = 3 [pid 5824] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8424400000 [ 107.764464][ T1209] cfg80211: failed to load regulatory.db [pid 5824] 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 5824] munmap(0x7f8424400000, 138412032) = 0 [pid 5824] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5824] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5824] close(3) = 0 [pid 5824] close(4) = 0 [pid 5824] mkdir("./file0", 0777) = 0 [ 107.887603][ T5824] loop0: detected capacity change from 0 to 32768 [ 107.942236][ T5824] ======================================================= [ 107.942236][ T5824] WARNING: The mand mount option has been deprecated and [ 107.942236][ T5824] and is ignored by this kernel. Remove the mand [ 107.942236][ T5824] option from the mount to silence this warning. [ 107.942236][ T5824] ======================================================= [ 108.017363][ T5824] bcachefs (loop0): Using encoding defined by superblock: utf8-12.1.0 [ 108.067321][ T5824] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,read_only [ 108.067321][ T5824] allowing incompatible features above 0.0: (unknown version) [ 108.067321][ T5824] features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes [ 108.120126][ T5824] bcachefs (loop0): recovering from clean shutdown, journal seq 13 [ 108.133648][ T5824] bcachefs (loop0): Doing compatible version upgrade from 1.7: mi_btree_bitmap to 1.28: inode_has_case_insensitive [ 108.133648][ T5824] running recovery passes: check_allocations,check_extents_to_backpointers,check_inodes [ 108.193244][ T5824] bcachefs (loop0): accounting_read... done [ 108.206567][ T5824] bcachefs (loop0): alloc_read... done [ 108.216403][ T5824] bcachefs (loop0): snapshots_read... done [ 108.227886][ T5824] bcachefs (loop0): check_allocations... [ 108.230541][ T5824] bcachefs (loop0): btree ptr not marked in member info btree allocated bitmap [ 108.230562][ T5824] 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 [ 108.267292][ T5824] bcachefs (loop0): btree ptr not marked in member info btree allocated bitmap [ 108.267310][ T5824] 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 [ 108.305067][ T5824] bcachefs (loop0): btree ptr not marked in member info btree allocated bitmap [ 108.305085][ T5824] 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 [ 108.339913][ T5824] bcachefs (loop0): btree ptr not marked in member info btree allocated bitmap [ 108.339935][ T5824] 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 [ 108.375492][ T5824] bcachefs (loop0): btree ptr not marked in member info btree allocated bitmap [ 108.375511][ T5824] 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 [ 108.413339][ T5824] bcachefs (loop0): btree ptr not marked in member info btree allocated bitmap [ 108.413357][ T5824] 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 [ 108.460114][ T5824] done [ 108.473753][ T5824] bcachefs (loop0): going read-write [ 108.528132][ T5836] ODEBUG: object ffffc900044dfb90 is on stack ffffc900044d8000, but NOT annotated. [ 108.528638][ T5836] [ 108.528647][ T5836] ====================================================== [ 108.528655][ T5836] WARNING: possible circular locking dependency detected [ 108.528675][ T5836] 6.15.0-syzkaller-10769-g7d4e49a77d99 #0 Not tainted [ 108.528684][ T5836] ------------------------------------------------------ [ 108.528689][ T5836] bch-copygc/loop/5836 is trying to acquire lock: [ 108.528697][ T5836] ffffffff8e1311c0 (console_owner){....}-{0:0}, at: console_flush_all+0x13a/0xc40 [ 108.528741][ T5836] [ 108.528741][ T5836] but task is already holding lock: [ 108.528745][ T5836] ffffffff99c68e08 (&obj_hash[i].lock){-.-.}-{2:2}, at: __debug_object_init+0x85/0x3c0 [ 108.528777][ T5836] [ 108.528777][ T5836] which lock already depends on the new lock. [ 108.528777][ T5836] [ 108.528782][ T5836] [ 108.528782][ T5836] the existing dependency chain (in reverse order) is: [ 108.528787][ T5836] [ 108.528787][ T5836] -> #4 (&obj_hash[i].lock){-.-.}-{2:2}: [ 108.528805][ T5836] lock_acquire+0x120/0x360 [ 108.528820][ T5836] _raw_spin_lock_irqsave+0xa7/0xf0 [ 108.528847][ T5836] debug_object_activate+0xbb/0x420 [ 108.528861][ T5836] insert_work+0x35/0x330 [ 108.528876][ T5836] __queue_work+0xcfc/0xfe0 [ 108.528893][ T5836] queue_work_on+0x181/0x270 [ 108.528911][ T5836] start_poll_synchronize_rcu_expedited+0xfc/0x140 [ 108.528933][ T5836] rcu_init+0x108/0x160 [ 108.528947][ T5836] start_kernel+0x1fb/0x500 [ 108.528964][ T5836] x86_64_start_reservations+0x24/0x30 [ 108.528978][ T5836] x86_64_start_kernel+0x143/0x1c0 [ 108.528991][ T5836] common_startup_64+0x13e/0x147 [ 108.529011][ T5836] [ 108.529011][ T5836] -> #3 (&pool->lock){-.-.}-{2:2}: [ 108.529029][ T5836] lock_acquire+0x120/0x360 [ 108.529043][ T5836] _raw_spin_lock+0x2e/0x40 [ 108.529055][ T5836] __queue_work+0x7b0/0xfe0 [ 108.529071][ T5836] queue_work_on+0x181/0x270 [ 108.529088][ T5836] rpm_suspend+0xe54/0x1720 [ 108.529100][ T5836] __pm_runtime_idle+0x12f/0x1a0 [ 108.529113][ T5836] __device_attach+0x342/0x400 [ 108.529127][ T5836] bus_probe_device+0x185/0x260 [ 108.529148][ T5836] device_add+0x7b6/0xb50 [ 108.529159][ T5836] serial_base_port_add+0x2f2/0x430 [ 108.529176][ T5836] serial_core_register_port+0x367/0x2700 [ 108.529197][ T5836] serial8250_register_8250_port+0x16dc/0x2050 [ 108.529216][ T5836] serial_pnp_probe+0x527/0x790 [ 108.529235][ T5836] pnp_device_probe+0x30b/0x4c0 [ 108.529256][ T5836] really_probe+0x26a/0x9a0 [ 108.529271][ T5836] __driver_probe_device+0x18c/0x2f0 [ 108.529285][ T5836] driver_probe_device+0x4f/0x430 [ 108.529300][ T5836] __driver_attach+0x452/0x700 [ 108.529314][ T5836] bus_for_each_dev+0x230/0x2b0 [ 108.529332][ T5836] bus_add_driver+0x345/0x640 [ 108.529351][ T5836] driver_register+0x23a/0x320 [ 108.529368][ T5836] serial8250_init+0xc2/0x1c0 [ 108.529388][ T5836] do_one_initcall+0x233/0x820 [ 108.529410][ T5836] do_initcall_level+0x137/0x1f0 [ 108.529429][ T5836] do_initcalls+0x69/0xd0 [ 108.529447][ T5836] kernel_init_freeable+0x3d9/0x570 [ 108.529466][ T5836] kernel_init+0x1d/0x1d0 [ 108.529486][ T5836] ret_from_fork+0x3fc/0x770 [ 108.529500][ T5836] ret_from_fork_asm+0x1a/0x30 [ 108.529513][ T5836] [ 108.529513][ T5836] -> #2 (&dev->power.lock){-.-.}-{3:3}: [ 108.529532][ T5836] lock_acquire+0x120/0x360 [ 108.529545][ T5836] _raw_spin_lock_irqsave+0xa7/0xf0 [ 108.529559][ T5836] __pm_runtime_resume+0x10f/0x180 [ 108.529572][ T5836] __uart_start+0x171/0x440 [ 108.529592][ T5836] uart_write+0x278/0xa40 [ 108.529612][ T5836] n_tty_write+0xd35/0x11d0 [ 108.529628][ T5836] file_tty_write+0x501/0x990 [ 108.529649][ T5836] vfs_write+0x54b/0xa90 [ 108.529661][ T5836] ksys_write+0x145/0x250 [ 108.529673][ T5836] do_syscall_64+0xfa/0x3b0 [ 108.529690][ T5836] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 108.529703][ T5836] [ 108.529703][ T5836] -> #1 (&port_lock_key){-.-.}-{3:3}: [ 108.529722][ T5836] lock_acquire+0x120/0x360 [ 108.529735][ T5836] _raw_spin_lock_irqsave+0xa7/0xf0 [ 108.529748][ T5836] serial8250_console_write+0x17e/0x1ba0 [ 108.529762][ T5836] console_flush_all+0x728/0xc40 [ 108.529782][ T5836] console_unlock+0xc4/0x270 [ 108.529798][ T5836] vprintk_emit+0x5b7/0x7a0 [ 108.529815][ T5836] _printk+0xcf/0x120 [ 108.529827][ T5836] register_console+0xa8b/0xf90 [ 108.529849][ T5836] univ8250_console_init+0x52/0x90 [ 108.529875][ T5836] console_init+0x1a1/0x670 [ 108.529903][ T5836] start_kernel+0x2cc/0x500 [ 108.529924][ T5836] x86_64_start_reservations+0x24/0x30 [ 108.529941][ T5836] x86_64_start_kernel+0x143/0x1c0 [ 108.529957][ T5836] common_startup_64+0x13e/0x147 [ 108.529981][ T5836] [ 108.529981][ T5836] -> #0 (console_owner){....}-{0:0}: [ 108.530007][ T5836] validate_chain+0xb9b/0x2140 [ 108.530030][ T5836] __lock_acquire+0xab9/0xd20 [ 108.530049][ T5836] lock_acquire+0x120/0x360 [ 108.530067][ T5836] console_flush_all+0x6d2/0xc40 [ 108.530091][ T5836] console_unlock+0xc4/0x270 [ 108.530108][ T5836] vprintk_emit+0x5b7/0x7a0 [ 108.530125][ T5836] _printk+0xcf/0x120 [ 108.530136][ T5836] __debug_object_init+0x2c8/0x3c0 [ 108.530152][ T5836] rhashtable_init_noprof+0x7c0/0xbb0 [ 108.530173][ T5836] bch2_copygc_thread+0x116/0xdc0 [ 108.530191][ T5836] kthread+0x711/0x8a0 [ 108.530210][ T5836] ret_from_fork+0x3fc/0x770 [ 108.530223][ T5836] ret_from_fork_asm+0x1a/0x30 [ 108.530236][ T5836] [ 108.530236][ T5836] other info that might help us debug this: [ 108.530236][ T5836] [ 108.530241][ T5836] Chain exists of: [ 108.530241][ T5836] console_owner --> &pool->lock --> &obj_hash[i].lock [ 108.530241][ T5836] [ 108.530264][ T5836] Possible unsafe locking scenario: [ 108.530264][ T5836] [ 108.530268][ T5836] CPU0 CPU1 [ 108.530272][ T5836] ---- ---- [ 108.530277][ T5836] lock(&obj_hash[i].lock); [ 108.530286][ T5836] lock(&pool->lock); [ 108.530296][ T5836] lock(&obj_hash[i].lock); [ 108.530306][ T5836] lock(console_owner); [ 108.530316][ T5836] [ 108.530316][ T5836] *** DEADLOCK *** [ 108.530316][ T5836] [ 108.530324][ T5836] 3 locks held by bch-copygc/loop/5836: [ 108.530333][ T5836] #0: ffffffff99c68e08 (&obj_hash[i].lock){-.-.}-{2:2}, at: __debug_object_init+0x85/0x3c0 [ 108.530367][ T5836] #1: ffffffff8e131220 (console_lock){+.+.}-{0:0}, at: _printk+0xcf/0x120 [ 108.530405][ T5836] #2: ffffffff8e018af0 (console_srcu){....}-{0:0}, at: console_flush_all+0x13a/0xc40 [ 108.530443][ T5836] [ 108.530443][ T5836] stack backtrace: [ 108.530462][ T5836] CPU: 0 UID: 0 PID: 5836 Comm: bch-copygc/loop Not tainted 6.15.0-syzkaller-10769-g7d4e49a77d99 #0 PREEMPT(full) [ 108.530479][ T5836] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.530491][ T5836] Call Trace: [ 108.530500][ T5836] [ 108.530506][ T5836] dump_stack_lvl+0x189/0x250 [ 108.530533][ T5836] ? __pfx_dump_stack_lvl+0x10/0x10 [ 108.530554][ T5836] ? __pfx__printk+0x10/0x10 [ 108.530568][ T5836] ? print_lock_name+0xde/0x100 [ 108.530592][ T5836] print_circular_bug+0x2ee/0x310 [ 108.530613][ T5836] check_noncircular+0x134/0x160 [ 108.530635][ T5836] validate_chain+0xb9b/0x2140 [ 108.530662][ T5836] __lock_acquire+0xab9/0xd20 [ 108.530680][ T5836] ? console_flush_all+0x13a/0xc40 [ 108.530700][ T5836] lock_acquire+0x120/0x360 [ 108.530714][ T5836] ? console_flush_all+0x13a/0xc40 [ 108.530737][ T5836] ? do_raw_spin_unlock+0x122/0x240 [ 108.530758][ T5836] ? console_flush_all+0x13a/0xc40 [ 108.530779][ T5836] console_flush_all+0x6d2/0xc40 [ 108.530799][ T5836] ? console_flush_all+0x13a/0xc40 [ 108.530820][ T5836] ? console_flush_all+0x13a/0xc40 [ 108.530843][ T5836] ? __pfx_console_flush_all+0x10/0x10 [ 108.530867][ T5836] ? is_printk_cpu_sync_owner+0x32/0x40 [ 108.530881][ T5836] console_unlock+0xc4/0x270 [ 108.530901][ T5836] ? __pfx_console_unlock+0x10/0x10 [ 108.530922][ T5836] ? is_printk_cpu_sync_owner+0x32/0x40 [ 108.530951][ T5836] vprintk_emit+0x5b7/0x7a0 [ 108.530971][ T5836] ? __pfx_vprintk_emit+0x10/0x10 [ 108.530989][ T5836] ? __lock_acquire+0xab9/0xd20 [ 108.531006][ T5836] ? do_raw_spin_lock+0x121/0x290 [ 108.531029][ T5836] _printk+0xcf/0x120 [ 108.531044][ T5836] ? __pfx__printk+0x10/0x10 [ 108.531061][ T5836] __debug_object_init+0x2c8/0x3c0 [ 108.531078][ T5836] ? rhashtable_init_noprof+0x4ee/0xbb0 [ 108.531102][ T5836] rhashtable_init_noprof+0x7c0/0xbb0 [ 108.531126][ T5836] bch2_copygc_thread+0x116/0xdc0 [ 108.531152][ T5836] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 108.531187][ T5836] ? finish_task_switch+0x266/0x950 [ 108.531200][ T5836] ? lockdep_hardirqs_on+0x9c/0x150 [ 108.531223][ T5836] ? __pfx_rhashtable_jhash2+0x10/0x10 [ 108.531259][ T5836] ? __kthread_parkme+0x7b/0x200 [ 108.531277][ T5836] ? __kthread_parkme+0x1a1/0x200 [ 108.531297][ T5836] kthread+0x711/0x8a0 [ 108.531319][ T5836] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 108.531337][ T5836] ? __pfx_kthread+0x10/0x10 [ 108.531359][ T5836] ? _raw_spin_unlock_irq+0x23/0x50 [ 108.531374][ T5836] ? lockdep_hardirqs_on+0x9c/0x150 [ 108.531429][ T5836] ? __pfx_kthread+0x10/0x10 [ 108.531462][ T5836] ret_from_fork+0x3fc/0x770 [ 108.531480][ T5836] ? __pfx_ret_from_fork+0x10/0x10 [ 108.531497][ T5836] ? __switch_to_asm+0x39/0x70 [ 108.531511][ T5836] ? __switch_to_asm+0x33/0x70 [ 108.531524][ T5836] ? __pfx_kthread+0x10/0x10 [ 108.531545][ T5836] ret_from_fork_asm+0x1a/0x30 [ 108.531565][ T5836] [ 108.542682][ T5824] bcachefs (loop0): journal_replay... [ 108.547871][ T5836] ------------[ cut here ]------------ [ 109.788663][ T5836] WARNING: CPU: 0 PID: 5836 at lib/debugobjects.c:655 __debug_object_init+0x2c9/0x3c0 [ 109.798854][ T5836] Modules linked in: [ 109.802866][ T5836] CPU: 0 UID: 0 PID: 5836 Comm: bch-copygc/loop Not tainted 6.15.0-syzkaller-10769-g7d4e49a77d99 #0 PREEMPT(full) [ 109.816003][ T5836] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.828688][ T5836] RIP: 0010:__debug_object_init+0x2c9/0x3c0 [ 109.836836][ T5836] Code: cc cc cc 41 ff c7 44 89 3d 94 87 17 15 48 c7 c1 00 a4 e1 8b 48 c7 c7 60 a4 e1 8b 84 c0 48 0f 45 f9 48 89 de e8 68 87 68 fc 90 <0f> 0b 90 e9 c0 fe ff ff e8 3a 1c 00 00 8b 05 0c a8 cc 09 3b 05 0a [ 109.857954][ T5836] RSP: 0018:ffffc900044df6e0 EFLAGS: 00010046 [ 109.864782][ T5836] RAX: 0000000000000050 RBX: ffffc900044dfb90 RCX: ec233893ab65a100 [ 109.875611][ T5836] RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000 [ 109.884400][ T5836] RBP: ffff888033fc1e20 R08: ffff8880b8624293 R09: 1ffff110170c4852 [ 109.894853][ T5836] R10: dffffc0000000000 R11: ffffed10170c4853 R12: ffff88807c0160c0 [ 109.903457][ T5836] R13: ffff88807ca5efc0 R14: dffffc0000000000 R15: 0000000000000001 [ 109.911732][ T5836] FS: 0000000000000000(0000) GS:ffff888125c95000(0000) knlGS:0000000000000000 [ 109.921918][ T5836] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 109.930686][ T5836] CR2: 0000561df7771160 CR3: 00000000744ae000 CR4: 00000000003526f0 [ 109.939048][ T5836] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 109.948525][ T5836] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 109.956791][ T5836] Call Trace: [ 109.962863][ T5836] [ 109.966179][ T5836] ? rhashtable_init_noprof+0x4ee/0xbb0 [ 109.973049][ T5836] rhashtable_init_noprof+0x7c0/0xbb0 [ 109.978565][ T5836] bch2_copygc_thread+0x116/0xdc0 [ 109.983660][ T5836] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 109.989461][ T5836] ? finish_task_switch+0x266/0x950 [ 109.995641][ T5836] ? lockdep_hardirqs_on+0x9c/0x150 [ 110.000884][ T5836] ? __pfx_rhashtable_jhash2+0x10/0x10 [ 110.006643][ T5836] ? __kthread_parkme+0x7b/0x200 [ 110.012149][ T5836] ? __kthread_parkme+0x1a1/0x200 [ 110.018664][ T5836] kthread+0x711/0x8a0 [ 110.024089][ T5836] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 110.030945][ T5836] ? __pfx_kthread+0x10/0x10 [ 110.035752][ T5836] ? _raw_spin_unlock_irq+0x23/0x50 [ 110.041055][ T5836] ? lockdep_hardirqs_on+0x9c/0x150 [ 110.047153][ T5836] ? __pfx_kthread+0x10/0x10 [ 110.053525][ T5836] ret_from_fork+0x3fc/0x770 [ 110.058366][ T5836] ? __pfx_ret_from_fork+0x10/0x10 [ 110.064634][ T5836] ? __switch_to_asm+0x39/0x70 [ 110.069967][ T5836] ? __switch_to_asm+0x33/0x70 [ 110.074746][ T5836] ? __pfx_kthread+0x10/0x10 [ 110.079712][ T5836] ret_from_fork_asm+0x1a/0x30 [ 110.085641][ T5836] [ 110.088986][ T5836] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 110.097732][ T5836] CPU: 0 UID: 0 PID: 5836 Comm: bch-copygc/loop Not tainted 6.15.0-syzkaller-10769-g7d4e49a77d99 #0 PREEMPT(full) [ 110.111560][ T5836] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.124437][ T5836] Call Trace: [ 110.127835][ T5836] [ 110.130779][ T5836] dump_stack_lvl+0x99/0x250 [ 110.136211][ T5836] ? __asan_memcpy+0x40/0x70 [ 110.142149][ T5836] ? __pfx_dump_stack_lvl+0x10/0x10 [ 110.148321][ T5836] ? __pfx__printk+0x10/0x10 [ 110.155019][ T5836] panic+0x2db/0x790 [ 110.160083][ T5836] ? __pfx_panic+0x10/0x10 [ 110.165636][ T5836] ? show_trace_log_lvl+0x4fb/0x550 [ 110.172460][ T5836] ? ret_from_fork_asm+0x1a/0x30 [ 110.177948][ T5836] __warn+0x31b/0x4b0 [ 110.183014][ T5836] ? __debug_object_init+0x2c9/0x3c0 [ 110.188703][ T5836] ? __debug_object_init+0x2c9/0x3c0 [ 110.194115][ T5836] report_bug+0x2be/0x4f0 [ 110.198657][ T5836] ? __debug_object_init+0x2c9/0x3c0 [ 110.204592][ T5836] ? __debug_object_init+0x2c9/0x3c0 [ 110.211476][ T5836] ? __debug_object_init+0x2cb/0x3c0 [ 110.218283][ T5836] handle_bug+0x84/0x160 [ 110.222816][ T5836] exc_invalid_op+0x1a/0x50 [ 110.230328][ T5836] asm_exc_invalid_op+0x1a/0x20 [ 110.235918][ T5836] RIP: 0010:__debug_object_init+0x2c9/0x3c0 [ 110.243191][ T5836] Code: cc cc cc 41 ff c7 44 89 3d 94 87 17 15 48 c7 c1 00 a4 e1 8b 48 c7 c7 60 a4 e1 8b 84 c0 48 0f 45 f9 48 89 de e8 68 87 68 fc 90 <0f> 0b 90 e9 c0 fe ff ff e8 3a 1c 00 00 8b 05 0c a8 cc 09 3b 05 0a [ 110.265915][ T5836] RSP: 0018:ffffc900044df6e0 EFLAGS: 00010046 [ 110.272196][ T5836] RAX: 0000000000000050 RBX: ffffc900044dfb90 RCX: ec233893ab65a100 [ 110.280818][ T5836] RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000 [ 110.290315][ T5836] RBP: ffff888033fc1e20 R08: ffff8880b8624293 R09: 1ffff110170c4852 [ 110.300796][ T5836] R10: dffffc0000000000 R11: ffffed10170c4853 R12: ffff88807c0160c0 [ 110.311065][ T5836] R13: ffff88807ca5efc0 R14: dffffc0000000000 R15: 0000000000000001 [ 110.319779][ T5836] ? rhashtable_init_noprof+0x4ee/0xbb0 [ 110.326083][ T5836] rhashtable_init_noprof+0x7c0/0xbb0 [ 110.332125][ T5836] bch2_copygc_thread+0x116/0xdc0 [ 110.337380][ T5836] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 110.343335][ T5836] ? finish_task_switch+0x266/0x950 [ 110.349182][ T5836] ? lockdep_hardirqs_on+0x9c/0x150 [ 110.356757][ T5836] ? __pfx_rhashtable_jhash2+0x10/0x10 [ 110.363328][ T5836] ? __kthread_parkme+0x7b/0x200 [ 110.368500][ T5836] ? __kthread_parkme+0x1a1/0x200 [ 110.374616][ T5836] kthread+0x711/0x8a0 [ 110.378861][ T5836] ? __pfx_bch2_copygc_thread+0x10/0x10 [ 110.385009][ T5836] ? __pfx_kthread+0x10/0x10 [ 110.389716][ T5836] ? _raw_spin_unlock_irq+0x23/0x50 [ 110.395114][ T5836] ? lockdep_hardirqs_on+0x9c/0x150 [ 110.401059][ T5836] ? __pfx_kthread+0x10/0x10 [ 110.405913][ T5836] ret_from_fork+0x3fc/0x770 [ 110.410553][ T5836] ? __pfx_ret_from_fork+0x10/0x10 [ 110.417236][ T5836] ? __switch_to_asm+0x39/0x70 [ 110.422694][ T5836] ? __switch_to_asm+0x33/0x70 [ 110.427618][ T5836] ? __pfx_kthread+0x10/0x10 [ 110.432807][ T5836] ret_from_fork_asm+0x1a/0x30 [ 110.439043][ T5836] [ 110.442529][ T5836] Kernel Offset: disabled [ 110.447154][ T5836] Rebooting in 86400 seconds..