./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor126646494
<...>
no interfaces have a carrier
[ 59.102775][ T5492] 8021q: adding VLAN 0 to HW filter on device bond0
[ 59.116563][ T5492] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting crond: OK
Starting sshd: OK
syzkaller
Warning: Permanently added '10.128.1.184' (ED25519) to the list of known hosts.
execve("./syz-executor126646494", ["./syz-executor126646494"], 0x7fff3bcbd170 /* 10 vars */) = 0
brk(NULL) = 0x55556db4d000
brk(0x55556db4dd00) = 0x55556db4dd00
arch_prctl(ARCH_SET_FS, 0x55556db4d380) = 0
set_tid_address(0x55556db4d650) = 5828
set_robust_list(0x55556db4d660, 24) = 0
rseq(0x55556db4dca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor126646494", 4096) = 27
getrandom("\x57\xcd\x4b\x76\xbf\x7a\xcb\x3c", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x55556db4dd00
brk(0x55556db6ed00) = 0x55556db6ed00
brk(0x55556db6f000) = 0x55556db6f000
mprotect(0x7f89fcf83000, 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 5829 attached
, child_tidptr=0x55556db4d650) = 5829
[pid 5829] set_robust_list(0x55556db4d660, 24) = 0
[pid 5829] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5829] setpgid(0, 0) = 0
[pid 5829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5829] write(3, "1000", 4) = 4
[pid 5829] close(3) = 0
executing program
[pid 5829] write(1, "executing program\n", 18) = 18
[pid 5829] memfd_create("syzkaller", 0) = 3
[pid 5829] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f89f4a00000
[pid 5829] 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 5829] munmap(0x7f89f4a00000, 138412032) = 0
[pid 5829] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5829] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5829] close(3) = 0
[pid 5829] close(4) = 0
[pid 5829] mkdir("./file0", 0777) = 0
syzkaller login: [ 89.328939][ T5829] loop0: detected capacity change from 0 to 32768
[ 89.431301][ T5829] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,journal_flush_disabled,fsck,recovery_pass_last=set_may_go_rw,reconstruct_alloc,no_data_io
[ 89.431301][ T5829] allowing incompatible features above 0.0: (unknown version)
[ 89.431301][ T5829] features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[ 89.473408][ T5829] bcachefs (loop0): Using encoding defined by superblock: utf8-12.1.0
[ 89.481767][ T5829] bcachefs (loop0): recovering from clean shutdown, journal seq 10
[ 89.490066][ T5829] bcachefs (loop0): Version upgrade required:
[ 89.490066][ T5829] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete
[ 89.490066][ T5829] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.28: inode_has_case_insensitive
[ 89.490066][ T5829] running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,check_rebalance_work,set_fs_needs_rebalance
[ 89.565252][ T5829] bcachefs (loop0): dropping and reconstructing all alloc info
[ 89.588294][ T5829] bcachefs (loop0): accounting_read... done
[ 89.596196][ T5829] bcachefs (loop0): alloc_read... done
[ 89.602771][ T5829] bcachefs (loop0): snapshots_read... done
[ 89.609693][ T5829] bcachefs (loop0): check_allocations... done
[ 89.633926][ T5829] bcachefs (loop0): going read-write
[pid 5829] mount("/dev/loop0", "./file0", "bcachefs", MS_POSIXACL|MS_I_VERSION, "\x6a\x6f\x75\x72\x6e\x61\x6c\x5f\x74\x72\x61\x6e\x73\x61\x63\x74\x69\x6f\x6e\x5f\x6e\x61\x6d\x65\x73\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x0d\xcb\xcc\x28\xb5\xef\x6f\x8b\x2c\x6a\x6f\x75\x72\x6e\x61\x6c\x5f\x66\x6c\x75\x73\x68\x5f\x64\x69\x73\x61\x62\x6c\x65\x64\x2c\x66\x73\x63\x6b\x2c\x6a\x6f\x75\x72\x6e\x61\x6c\x5f\x66\x6c\x75\x73\x68\x5f\x64\x69\x73\x61\x62\x6c\x65\x64\x2c\x72\x61\x74"...) = 0
[pid 5829] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 89.661874][ T5839] ODEBUG: object ffffc90004257b90 is on stack ffffc90004250000, but NOT annotated.
[ 89.662218][ T5839]
[ 89.662227][ T5839] ======================================================
[ 89.662234][ T5839] WARNING: possible circular locking dependency detected
[ 89.662254][ T5839] 6.16.0-rc1-syzkaller-00004-gaef17cb3d3c4 #0 Not tainted
[ 89.662266][ T5839] ------------------------------------------------------
[ 89.662273][ T5839] bch-copygc/loop/5839 is trying to acquire lock:
[pid 5829] chdir("./file0") = 0
[pid 5829] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5829] ioctl(4, LOOP_CLR_FD) = 0
[ 89.662283][ T5839] ffffffff8e132fc0 (console_owner){....}-{0:0}, at: console_flush_all+0x13a/0xc40
[ 89.662339][ T5839]
[ 89.662339][ T5839] but task is already holding lock:
[ 89.662344][ T5839] ffffffff99d03d80 (&obj_hash[i].lock){-.-.}-{2:2}, at: __debug_object_init+0x85/0x3c0
[ 89.662375][ T5839]
[ 89.662375][ T5839] which lock already depends on the new lock.
[ 89.662375][ T5839]
[ 89.662380][ T5839]
[ 89.662380][ T5839] the existing dependency chain (in reverse order) is:
[ 89.662385][ T5839]
[ 89.662385][ T5839] -> #4 (&obj_hash[i].lock){-.-.}-{2:2}:
[ 89.662403][ T5839] lock_acquire+0x120/0x360
[ 89.662420][ T5839] _raw_spin_lock_irqsave+0xa7/0xf0
[ 89.662455][ T5839] debug_object_activate+0xbb/0x420
[ 89.662474][ T5839] insert_work+0x35/0x330
[ 89.662499][ T5839] __queue_work+0xcfc/0xfe0
[ 89.662526][ T5839] queue_work_on+0x181/0x270
[ 89.662553][ T5839] start_poll_synchronize_rcu_expedited+0xfc/0x140
[ 89.662588][ T5839] rcu_init+0x108/0x160
[ 89.662605][ T5839] start_kernel+0x1fb/0x500
[ 89.662623][ T5839] x86_64_start_reservations+0x24/0x30
[ 89.662635][ T5839] x86_64_start_kernel+0x143/0x1c0
[ 89.662647][ T5839] common_startup_64+0x13e/0x147
[ 89.662660][ T5839]
[ 89.662660][ T5839] -> #3 (&pool->lock){-.-.}-{2:2}:
[ 89.662679][ T5839] lock_acquire+0x120/0x360
[ 89.662695][ T5839] _raw_spin_lock+0x2e/0x40
[ 89.662711][ T5839] __queue_work+0x7b0/0xfe0
[ 89.662730][ T5839] queue_work_on+0x181/0x270
[ 89.662749][ T5839] rpm_suspend+0xe54/0x1720
[ 89.662762][ T5839] __pm_runtime_idle+0x12f/0x1a0
[ 89.662774][ T5839] __device_attach+0x342/0x400
[ 89.662787][ T5839] bus_probe_device+0x185/0x260
[ 89.662806][ T5839] device_add+0x7b6/0xb50
[ 89.662818][ T5839] serial_base_port_add+0x2f2/0x430
[ 89.662834][ T5839] serial_core_register_port+0x367/0x2700
[ 89.662855][ T5839] serial8250_register_8250_port+0x16db/0x2050
[ 89.662875][ T5839] serial_pnp_probe+0x527/0x790
[ 89.662894][ T5839] pnp_device_probe+0x30b/0x4c0
[ 89.662914][ T5839] really_probe+0x26a/0x9a0
[ 89.662928][ T5839] __driver_probe_device+0x18c/0x2f0
[ 89.662943][ T5839] driver_probe_device+0x4f/0x430
[ 89.662957][ T5839] __driver_attach+0x452/0x700
[ 89.662971][ T5839] bus_for_each_dev+0x230/0x2b0
[ 89.662989][ T5839] bus_add_driver+0x345/0x640
[ 89.663007][ T5839] driver_register+0x23a/0x320
[ 89.663023][ T5839] serial8250_init+0xc2/0x1c0
[ 89.663043][ T5839] do_one_initcall+0x233/0x820
[ 89.663054][ T5839] do_initcall_level+0x137/0x1f0
[ 89.663072][ T5839] do_initcalls+0x69/0xd0
[ 89.663089][ T5839] kernel_init_freeable+0x3d9/0x570
[ 89.663106][ T5839] kernel_init+0x1d/0x1d0
[ 89.663120][ T5839] ret_from_fork+0x3fc/0x770
[ 89.663136][ T5839] ret_from_fork_asm+0x1a/0x30
[ 89.663148][ T5839]
[ 89.663148][ T5839] -> #2 (&dev->power.lock){-.-.}-{3:3}:
[ 89.663166][ T5839] lock_acquire+0x120/0x360
[ 89.663182][ T5839] _raw_spin_lock_irqsave+0xa7/0xf0
[ 89.663199][ T5839] __pm_runtime_resume+0x10f/0x180
[ 89.663212][ T5839] __uart_start+0x171/0x440
[ 89.663231][ T5839] uart_write+0xdc/0x130
[ 89.663241][ T5839] n_tty_write+0xd35/0x11d0
[ 89.663256][ T5839] file_tty_write+0x500/0x990
[ 89.663276][ T5839] vfs_write+0x54b/0xa90
[ 89.663290][ T5839] ksys_write+0x145/0x250
[ 89.663303][ T5839] do_syscall_64+0xfa/0x3b0
[ 89.663314][ T5839] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 89.663333][ T5839]
[ 89.663333][ T5839] -> #1 (&port_lock_key){-.-.}-{3:3}:
[ 89.663351][ T5839] lock_acquire+0x120/0x360
[ 89.663366][ T5839] _raw_spin_lock_irqsave+0xa7/0xf0
[ 89.663384][ T5839] serial8250_console_write+0x17e/0x1ba0
[ 89.663397][ T5839] console_flush_all+0x728/0xc40
[ 89.663410][ T5839] console_unlock+0xc4/0x270
[ 89.663429][ T5839] vprintk_emit+0x5b7/0x7a0
[ 89.663449][ T5839] _printk+0xcf/0x120
[ 89.663460][ T5839] register_console+0xa8b/0xf90
[ 89.663472][ T5839] univ8250_console_init+0x52/0x90
[ 89.663491][ T5839] console_init+0x1a1/0x670
[ 89.663510][ T5839] start_kernel+0x2cc/0x500
[ 89.663526][ T5839] x86_64_start_reservations+0x24/0x30
[ 89.663538][ T5839] x86_64_start_kernel+0x143/0x1c0
[ 89.663550][ T5839] common_startup_64+0x13e/0x147
[ 89.663562][ T5839]
[ 89.663562][ T5839] -> #0 (console_owner){....}-{0:0}:
[ 89.663580][ T5839] validate_chain+0xb9b/0x2140
[ 89.663599][ T5839] __lock_acquire+0xab9/0xd20
[ 89.663615][ T5839] lock_acquire+0x120/0x360
[ 89.663631][ T5839] console_flush_all+0x6d2/0xc40
[ 89.663643][ T5839] console_unlock+0xc4/0x270
[ 89.663662][ T5839] vprintk_emit+0x5b7/0x7a0
[ 89.663681][ T5839] _printk+0xcf/0x120
[ 89.663692][ T5839] __debug_object_init+0x2c8/0x3c0
[ 89.663705][ T5839] rhashtable_init_noprof+0x7c0/0xbb0
[ 89.663725][ T5839] bch2_copygc_thread+0x116/0xdc0
[ 89.663739][ T5839] kthread+0x70e/0x8a0
[ 89.663751][ T5839] ret_from_fork+0x3fc/0x770
[ 89.663767][ T5839] ret_from_fork_asm+0x1a/0x30
[ 89.663780][ T5839]
[ 89.663780][ T5839] other info that might help us debug this:
[ 89.663780][ T5839]
[ 89.663784][ T5839] Chain exists of:
[ 89.663784][ T5839] console_owner --> &pool->lock --> &obj_hash[i].lock
[ 89.663784][ T5839]
[ 89.663805][ T5839] Possible unsafe locking scenario:
[ 89.663805][ T5839]
[ 89.663809][ T5839] CPU0 CPU1
[ 89.663813][ T5839] ---- ----
[ 89.663817][ T5839] lock(&obj_hash[i].lock);
[ 89.663826][ T5839] lock(&pool->lock);
[ 89.663835][ T5839] lock(&obj_hash[i].lock);
[ 89.663845][ T5839] lock(console_owner);
[ 89.663854][ T5839]
[ 89.663854][ T5839] *** DEADLOCK ***
[ 89.663854][ T5839]
[ 89.663861][ T5839] 3 locks held by bch-copygc/loop/5839:
[ 89.663869][ T5839] #0: ffffffff99d03d80 (&obj_hash[i].lock){-.-.}-{2:2}, at: __debug_object_init+0x85/0x3c0
[ 89.663902][ T5839] #1: ffffffff8e133020 (console_lock){+.+.}-{0:0}, at: _printk+0xcf/0x120
[ 89.663932][ T5839] #2: ffffffff8e01a8f0 (console_srcu){....}-{0:0}, at: console_flush_all+0x13a/0xc40
[ 89.663963][ T5839]
[ 89.663963][ T5839] stack backtrace:
[ 89.663976][ T5839] CPU: 0 UID: 0 PID: 5839 Comm: bch-copygc/loop Not tainted 6.16.0-rc1-syzkaller-00004-gaef17cb3d3c4 #0 PREEMPT(full)
[ 89.663993][ T5839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 89.664004][ T5839] Call Trace:
[ 89.664012][ T5839]
[ 89.664018][ T5839] dump_stack_lvl+0x189/0x250
[ 89.664041][ T5839] ? __pfx_dump_stack_lvl+0x10/0x10
[ 89.664061][ T5839] ? __pfx__printk+0x10/0x10
[ 89.664075][ T5839] ? print_lock_name+0xde/0x100
[ 89.664098][ T5839] print_circular_bug+0x2ee/0x310
[ 89.664121][ T5839] check_noncircular+0x134/0x160
[ 89.664145][ T5839] validate_chain+0xb9b/0x2140
[ 89.664174][ T5839] __lock_acquire+0xab9/0xd20
[ 89.664194][ T5839] ? console_flush_all+0x13a/0xc40
[ 89.664207][ T5839] lock_acquire+0x120/0x360
[ 89.664224][ T5839] ? console_flush_all+0x13a/0xc40
[ 89.664240][ T5839] ? do_raw_spin_unlock+0x122/0x240
[ 89.664254][ T5839] ? console_flush_all+0x13a/0xc40
[ 89.664268][ T5839] console_flush_all+0x6d2/0xc40
[ 89.664282][ T5839] ? console_flush_all+0x13a/0xc40
[ 89.664296][ T5839] ? console_flush_all+0x13a/0xc40
[ 89.664312][ T5839] ? __pfx_console_flush_all+0x10/0x10
[ 89.664354][ T5839] ? is_printk_cpu_sync_owner+0x32/0x40
[ 89.664371][ T5839] console_unlock+0xc4/0x270
[ 89.664393][ T5839] ? __pfx_console_unlock+0x10/0x10
[ 89.664415][ T5839] ? is_printk_cpu_sync_owner+0x32/0x40
[ 89.664432][ T5839] vprintk_emit+0x5b7/0x7a0
[ 89.664454][ T5839] ? __pfx_vprintk_emit+0x10/0x10
[ 89.664475][ T5839] ? __lock_acquire+0xab9/0xd20
[ 89.664495][ T5839] ? do_raw_spin_lock+0x121/0x290
[ 89.664512][ T5839] _printk+0xcf/0x120
[ 89.664526][ T5839] ? __pfx__printk+0x10/0x10
[ 89.664543][ T5839] __debug_object_init+0x2c8/0x3c0
[ 89.664559][ T5839] ? rhashtable_init_noprof+0x4ee/0xbb0
[ 89.664581][ T5839] rhashtable_init_noprof+0x7c0/0xbb0
[ 89.664604][ T5839] bch2_copygc_thread+0x116/0xdc0
[ 89.664621][ T5839] ? __lock_acquire+0xab9/0xd20
[ 89.664643][ T5839] ? __pfx_bch2_copygc_thread+0x10/0x10
[ 89.664673][ T5839] ? finish_task_switch+0x266/0x950
[ 89.664690][ T5839] ? lockdep_hardirqs_on+0x9c/0x150
[ 89.664716][ T5839] ? __pfx_rhashtable_jhash2+0x10/0x10
[ 89.664749][ T5839] ? __kthread_parkme+0x7b/0x200
[ 89.664771][ T5839] ? __kthread_parkme+0x1a1/0x200
[ 89.664793][ T5839] kthread+0x70e/0x8a0
[ 89.664808][ T5839] ? __pfx_bch2_copygc_thread+0x10/0x10
[ 89.664823][ T5839] ? __pfx_kthread+0x10/0x10
[ 89.664837][ T5839] ? _raw_spin_unlock_irq+0x23/0x50
[ 89.664856][ T5839] ? lockdep_hardirqs_on+0x9c/0x150
[ 89.664875][ T5839] ? __pfx_kthread+0x10/0x10
[ 89.664889][ T5839] ret_from_fork+0x3fc/0x770
[ 89.664908][ T5839] ? __pfx_ret_from_fork+0x10/0x10
[ 89.664928][ T5839] ? __switch_to_asm+0x39/0x70
[ 89.664940][ T5839] ? __switch_to_asm+0x33/0x70
[ 89.664953][ T5839] ? __pfx_kthread+0x10/0x10
[ 89.664967][ T5839] ret_from_fork_asm+0x1a/0x30
[ 89.664985][ T5839]
[ 89.684309][ T5829] bcachefs (loop0): done starting filesystem
[ 89.691346][ T5839] ------------[ cut here ]------------
[ 90.616178][ T5839] WARNING: CPU: 0 PID: 5839 at lib/debugobjects.c:655 __debug_object_init+0x2c9/0x3c0
[ 90.625741][ T5839] Modules linked in:
[ 90.629656][ T5839] CPU: 0 UID: 0 PID: 5839 Comm: bch-copygc/loop Not tainted 6.16.0-rc1-syzkaller-00004-gaef17cb3d3c4 #0 PREEMPT(full)
[ 90.642078][ T5839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 90.652143][ T5839] RIP: 0010:__debug_object_init+0x2c9/0x3c0
[ 90.658057][ T5839] Code: cc cc cc 41 ff c7 44 89 3d b4 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 e8 3b 67 fc 90 <0f> 0b 90 e9 c0 fe ff ff e8 3a 1c 00 00 8b 05 cc 66 cb 09 3b 05 ca
[ 90.677681][ T5839] RSP: 0018:ffffc900042576e0 EFLAGS: 00010046
[ 90.683764][ T5839] RAX: 0000000000000050 RBX: ffffc90004257b90 RCX: 533bb7c8bf7aa400
[ 90.691743][ T5839] RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
[ 90.699720][ T5839] RBP: ffff888079913c20 R08: ffff8880b8624293 R09: 1ffff110170c4852
[ 90.707700][ T5839] R10: dffffc0000000000 R11: ffffed10170c4853 R12: ffff88803187d868
[ 90.715679][ T5839] R13: ffff8880795810a8 R14: dffffc0000000000 R15: 0000000000000001
[ 90.723675][ T5839] FS: 0000000000000000(0000) GS:ffff888125c86000(0000) knlGS:0000000000000000
[ 90.732613][ T5839] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 90.739207][ T5839] CR2: 0000556e6360d410 CR3: 00000000347a0000 CR4: 00000000003526f0
[ 90.747192][ T5839] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 90.755173][ T5839] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 90.763149][ T5839] Call Trace:
[ 90.766437][ T5839]
[ 90.769381][ T5839] ? rhashtable_init_noprof+0x4ee/0xbb0
[ 90.774959][ T5839] rhashtable_init_noprof+0x7c0/0xbb0
[ 90.780348][ T5839] bch2_copygc_thread+0x116/0xdc0
[ 90.785389][ T5839] ? __lock_acquire+0xab9/0xd20
[ 90.790260][ T5839] ? __pfx_bch2_copygc_thread+0x10/0x10
[ 90.795830][ T5839] ? finish_task_switch+0x266/0x950
[ 90.801043][ T5839] ? lockdep_hardirqs_on+0x9c/0x150
[ 90.806266][ T5839] ? __pfx_rhashtable_jhash2+0x10/0x10
[ 90.811758][ T5839] ? __kthread_parkme+0x7b/0x200
[ 90.816715][ T5839] ? __kthread_parkme+0x1a1/0x200
[ 90.821757][ T5839] kthread+0x70e/0x8a0
[ 90.825839][ T5839] ? __pfx_bch2_copygc_thread+0x10/0x10
[ 90.831394][ T5839] ? __pfx_kthread+0x10/0x10
[ 90.835995][ T5839] ? _raw_spin_unlock_irq+0x23/0x50
[ 90.841205][ T5839] ? lockdep_hardirqs_on+0x9c/0x150
[ 90.846426][ T5839] ? __pfx_kthread+0x10/0x10
[ 90.851023][ T5839] ret_from_fork+0x3fc/0x770
[ 90.855625][ T5839] ? __pfx_ret_from_fork+0x10/0x10
[ 90.860753][ T5839] ? __switch_to_asm+0x39/0x70
[ 90.865526][ T5839] ? __switch_to_asm+0x33/0x70
[ 90.870323][ T5839] ? __pfx_kthread+0x10/0x10
[ 90.874946][ T5839] ret_from_fork_asm+0x1a/0x30
[ 90.879726][ T5839]
[ 90.882757][ T5839] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 90.890049][ T5839] CPU: 0 UID: 0 PID: 5839 Comm: bch-copygc/loop Not tainted 6.16.0-rc1-syzkaller-00004-gaef17cb3d3c4 #0 PREEMPT(full)
[ 90.902519][ T5839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 90.912595][ T5839] Call Trace:
[ 90.915890][ T5839]
[ 90.918827][ T5839] dump_stack_lvl+0x99/0x250
[ 90.923444][ T5839] ? __asan_memcpy+0x40/0x70
[ 90.928046][ T5839] ? __pfx_dump_stack_lvl+0x10/0x10
[ 90.933266][ T5839] ? __pfx__printk+0x10/0x10
[ 90.937878][ T5839] panic+0x2db/0x790
[ 90.941795][ T5839] ? __pfx_panic+0x10/0x10
[ 90.946230][ T5839] ? show_trace_log_lvl+0x4fb/0x550
[ 90.951448][ T5839] ? ret_from_fork_asm+0x1a/0x30
[ 90.956403][ T5839] __warn+0x31b/0x4b0
[ 90.960403][ T5839] ? __debug_object_init+0x2c9/0x3c0
[ 90.965702][ T5839] ? __debug_object_init+0x2c9/0x3c0
[ 90.970994][ T5839] report_bug+0x2be/0x4f0
[ 90.975343][ T5839] ? __debug_object_init+0x2c9/0x3c0
[ 90.980637][ T5839] ? __debug_object_init+0x2c9/0x3c0
[ 90.985931][ T5839] ? __debug_object_init+0x2cb/0x3c0
[ 90.991232][ T5839] handle_bug+0x84/0x160
[ 90.995484][ T5839] exc_invalid_op+0x1a/0x50
[ 91.000015][ T5839] asm_exc_invalid_op+0x1a/0x20
[ 91.004895][ T5839] RIP: 0010:__debug_object_init+0x2c9/0x3c0
[ 91.010822][ T5839] Code: cc cc cc 41 ff c7 44 89 3d b4 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 e8 3b 67 fc 90 <0f> 0b 90 e9 c0 fe ff ff e8 3a 1c 00 00 8b 05 cc 66 cb 09 3b 05 ca
[ 91.030531][ T5839] RSP: 0018:ffffc900042576e0 EFLAGS: 00010046
[ 91.036613][ T5839] RAX: 0000000000000050 RBX: ffffc90004257b90 RCX: 533bb7c8bf7aa400
[ 91.044597][ T5839] RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
[ 91.052578][ T5839] RBP: ffff888079913c20 R08: ffff8880b8624293 R09: 1ffff110170c4852
[ 91.060556][ T5839] R10: dffffc0000000000 R11: ffffed10170c4853 R12: ffff88803187d868
[ 91.068553][ T5839] R13: ffff8880795810a8 R14: dffffc0000000000 R15: 0000000000000001
[ 91.076558][ T5839] ? rhashtable_init_noprof+0x4ee/0xbb0
[ 91.082147][ T5839] rhashtable_init_noprof+0x7c0/0xbb0
[ 91.087546][ T5839] bch2_copygc_thread+0x116/0xdc0
[ 91.092591][ T5839] ? __lock_acquire+0xab9/0xd20
[ 91.097467][ T5839] ? __pfx_bch2_copygc_thread+0x10/0x10
[ 91.103045][ T5839] ? finish_task_switch+0x266/0x950
[ 91.108347][ T5839] ? lockdep_hardirqs_on+0x9c/0x150
[ 91.113570][ T5839] ? __pfx_rhashtable_jhash2+0x10/0x10
[ 91.119074][ T5839] ? __kthread_parkme+0x7b/0x200
[ 91.124030][ T5839] ? __kthread_parkme+0x1a1/0x200
[ 91.129074][ T5839] kthread+0x70e/0x8a0
[ 91.133160][ T5839] ? __pfx_bch2_copygc_thread+0x10/0x10
[ 91.138720][ T5839] ? __pfx_kthread+0x10/0x10
[ 91.143322][ T5839] ? _raw_spin_unlock_irq+0x23/0x50
[ 91.148537][ T5839] ? lockdep_hardirqs_on+0x9c/0x150
[ 91.153755][ T5839] ? __pfx_kthread+0x10/0x10
[ 91.158357][ T5839] ret_from_fork+0x3fc/0x770
[ 91.162967][ T5839] ? __pfx_ret_from_fork+0x10/0x10
[ 91.168093][ T5839] ? __switch_to_asm+0x39/0x70
[ 91.172886][ T5839] ? __switch_to_asm+0x33/0x70
[ 91.177658][ T5839] ? __pfx_kthread+0x10/0x10
[ 91.182257][ T5839] ret_from_fork_asm+0x1a/0x30
[ 91.187037][ T5839]
[ 91.190491][ T5839] Kernel Offset: disabled
[ 91.194829][ T5839] Rebooting in 86400 seconds..