./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1138405630
<...>
Warning: Permanently added '10.128.0.38' (ED25519) to the list of known hosts.
execve("./syz-executor1138405630", ["./syz-executor1138405630"], 0x7ffd8f60a350 /* 10 vars */) = 0
brk(NULL) = 0x555557f63000
brk(0x555557f63d00) = 0x555557f63d00
arch_prctl(ARCH_SET_FS, 0x555557f63380) = 0
set_tid_address(0x555557f63650) = 5836
set_robust_list(0x555557f63660, 24) = 0
rseq(0x555557f63ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1138405630", 4096) = 28
getrandom("\x07\x4f\x72\xab\x76\xe6\xa3\x19", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555557f63d00
brk(0x555557f84d00) = 0x555557f84d00
brk(0x555557f85000) = 0x555557f85000
mprotect(0x7f7cdaf86000, 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
executing program
write(1, "executing program\n", 18) = 18
prlimit64(0, RLIMIT_RTPRIO, {rlim_cur=8, rlim_max=139}, NULL) = 0
sched_setscheduler(0, SCHED_RR, [8]) = 0
memfd_create("syzkaller", 0) = 3
mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7cd2a00000
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
munmap(0x7f7cd2a00000, 138412032) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
ioctl(4, LOOP_SET_FD, 3) = 0
close(3) = 0
close(4) = 0
mkdir("./file0", 0777) = 0
[ 90.351545][ T5836] loop0: detected capacity change from 0 to 32768
[ 90.409907][ T5836] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names
[ 90.409907][ T5836] allowing incompatible features above 0.0: (unknown version)
[ 90.409907][ T5836] features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[ 90.446627][ T5836] bcachefs (loop0): Using encoding defined by superblock: utf8-12.1.0
[ 90.455089][ T5836] bcachefs (loop0): recovering from clean shutdown, journal seq 10
[ 90.463667][ T5836] bcachefs (loop0): Version upgrade required:
[ 90.463667][ T5836] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete
[ 90.463667][ T5836] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.28: inode_has_case_insensitive
[ 90.463667][ T5836] 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
[ 90.556756][ T5836] bcachefs (loop0): invalid bkey in btree_node btree=alloc level=0: u64s 12 type alloc_v4 0:28:0 len 0 ver 0:
[ 90.556781][ T5836] gen 0 oldest_gen 0 data_type btree
[ 90.556791][ T5836] journal_seq_nonempty 6
[ 90.556800][ T5836] journal_seq_empty 0
[ 90.556808][ T5836] need_discard 1
[ 90.556818][ T5836] need_inc_gen 1
[ 90.556826][ T5836] dirty_sectors 0
[ 90.556836][ T5836] stripe_sectors 1769482
[ 90.556845][ T5836] cached_sectors 0
[ 90.556854][ T5836] stripe 0
[ 90.556863][ T5836] stripe_redundancy 0
[ 90.556872][ T5836] io_time[READ] 1
[ 90.556881][ T5836] io_time[WRITE] 768
[ 90.556890][ T5836] fragmentation 0
[ 90.556898][ T5836] bp_start 7
[ 90.556907][ T5836]
[ 90.556915][ T5836] invalid data type (got 3 should be 9), deleting
[ 90.650114][ T5836] bcachefs (loop0): accounting_read... done
[ 90.657829][ T5836] bcachefs (loop0): alloc_read... done
[ 90.664420][ T5836] bcachefs (loop0): snapshots_read... done
[ 90.671443][ T5836] bcachefs (loop0): check_allocations...
[ 90.674608][ T5836] bcachefs (loop0): bucket 0:26 data type btree ptr gen 0 missing in alloc btree
[ 90.674626][ T5836] while marking u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq ac62141f8dc7e261 written 24 min_key POS_MIN durability: 1 ptr: 0:26:0 gen 0, fixing
[ 90.707437][ T5836] bcachefs (loop0): bucket 0:38 data type btree ptr gen 0 missing in alloc btree
[ 90.707451][ T5836] while marking u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 7589ab5e0c11cc7a written 24 min_key POS_MIN durability: 1 ptr: 0:38:0 gen 0, fixing
[ 90.733932][ T5836] bcachefs (loop0): bucket 0:41 data type btree ptr gen 0 missing in alloc btree
[ 90.733946][ T5836] while marking u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 9aa2895aefce4bdf written 24 min_key POS_MIN durability: 1 ptr: 0:41:0 gen 0, fixing
[ 90.760148][ T5836] bcachefs (loop0): bucket 0:35 data type btree ptr gen 0 missing in alloc btree
[ 90.760160][ T5836] while marking u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq c0bef60d07ceb940 written 16 min_key POS_MIN durability: 1 ptr: 0:35:0 gen 0, fixing
[ 90.786798][ T5836] bcachefs (loop0): bucket 0:28 data type btree ptr gen 0 missing in alloc btree
[ 90.786812][ T5836] while marking u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 28f61e078e70b95c written 16 min_key POS_MIN durability: 1 ptr: 0:28:0 gen 0, fixing
[ 90.812995][ T5836] bcachefs (loop0): bucket 0:29 data type btree ptr gen 0 missing in alloc btree
[ 90.813009][ T5836] while marking u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq e81e1ed936acf3df written 32 min_key POS_MIN durability: 1 ptr: 0:29:0 gen 0, fixing
[ 90.838620][ T5836] bcachefs (loop0): bucket 0:1 gen 0 has wrong data_type: got free, should be sb, fixing
[ 90.848689][ T5836] bcachefs (loop0): bucket 0:1 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing
[ 90.860620][ T5836] bcachefs (loop0): bucket 0:2 gen 0 has wrong data_type: got free, should be sb, fixing
[ 90.870657][ T5836] bcachefs (loop0): bucket 0:2 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing
[ 90.882068][ T5836] bcachefs (loop0): bucket 0:3 gen 0 has wrong data_type: got free, should be sb, fixing
[ 90.892104][ T5836] bcachefs (loop0): bucket 0:3 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing
[ 90.903646][ T5836] bcachefs (loop0): bucket 0:4 gen 0 has wrong data_type: got free, should be sb, fixing
[ 90.913657][ T5836] bcachefs (loop0): bucket 0:4 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing
[ 90.925066][ T5836] bcachefs (loop0): bucket 0:5 gen 0 has wrong data_type: got free, should be sb, fixing
[ 90.935049][ T5836] bcachefs (loop0): bucket 0:5 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing
[ 90.946464][ T5836] bcachefs (loop0): bucket 0:6 gen 0 has wrong data_type: got free, should be sb, fixing
[ 90.956511][ T5836] bcachefs (loop0): bucket 0:6 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing
[ 90.967855][ T5836] bcachefs (loop0): bucket 0:7 gen 0 has wrong data_type: got free, should be sb, fixing
[ 90.977824][ T5836] bcachefs (loop0): bucket 0:7 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing
[ 90.989557][ T5836] bcachefs (loop0): bucket 0:8 gen 0 has wrong data_type: got free, should be sb, fixing
[ 90.999568][ T5836] bcachefs (loop0): bucket 0:8 gen 0 data type sb has wrong dirty_sectors: got 0, should be 8, fixing
[ 91.010771][ T5836] bcachefs (loop0): bucket 0:9 gen 0 has wrong data_type: got free, should be journal, fixing
[ 91.021275][ T5836] bcachefs (loop0): bucket 0:9 gen 0 data type journal has wrong dirty_sectors: got 0, should be 256, fixing
[ 91.033294][ T5836] bcachefs (loop0): bucket 0:10 gen 0 has wrong data_type: got free, should be journal, fixing
[ 91.043828][ T5836] bcachefs (loop0): bucket 0:10 gen 0 data type journal has wrong dirty_sectors: got 0, should be 256, fixing
[ 91.056170][ T5836] bcachefs (loop0): bucket 0:11 gen 0 has wrong data_type: got free, should be journal, fixing
[ 91.056185][ T5836] Ratelimiting new instances of previous error
[ 91.073006][ T5836] bcachefs (loop0): bucket 0:11 gen 0 data type journal has wrong dirty_sectors: got 0, should be 256, fixing
[ 91.073021][ T5836] Ratelimiting new instances of previous error
[ 91.100909][ T5836] done
[ 91.106601][ T5836] bcachefs (loop0): going read-write
[ 91.185283][ T5847] ODEBUG: object ffffc9000437fb90 is on stack ffffc90004378000, but NOT annotated.
[ 91.185626][ T5847]
[ 91.185634][ T5847] ======================================================
[ 91.185642][ T5847] WARNING: possible circular locking dependency detected
[ 91.185663][ T5847] 6.15.0-next-20250530-syzkaller #0 Not tainted
[ 91.185674][ T5847] ------------------------------------------------------
[ 91.185682][ T5847] bch-copygc/loop/5847 is trying to acquire lock:
[ 91.185692][ T5847] ffffffff8e133280 (console_owner){....}-{0:0}, at: console_flush_all+0x13a/0xc40
[ 91.185749][ T5847]
[ 91.185749][ T5847] but task is already holding lock:
[ 91.185755][ T5847] ffffffff99d48cf8 (&obj_hash[i].lock){-.-.}-{2:2}, at: __debug_object_init+0x85/0x3c0
[ 91.185808][ T5847]
[ 91.185808][ T5847] which lock already depends on the new lock.
[ 91.185808][ T5847]
[ 91.185816][ T5847]
[ 91.185816][ T5847] the existing dependency chain (in reverse order) is:
[ 91.185823][ T5847]
[ 91.185823][ T5847] -> #4 (&obj_hash[i].lock){-.-.}-{2:2}:
[ 91.185848][ T5847] lock_acquire+0x120/0x360
[ 91.185868][ T5847] _raw_spin_lock_irqsave+0xa7/0xf0
[ 91.185892][ T5847] debug_object_activate+0xbb/0x420
[ 91.185906][ T5847] insert_work+0x35/0x330
[ 91.185925][ T5847] __queue_work+0xcfc/0xfe0
[ 91.185937][ T5847] queue_work_on+0x181/0x270
[ 91.185948][ T5847] start_poll_synchronize_rcu_expedited+0xfc/0x140
[ 91.185966][ T5847] rcu_init+0x108/0x160
[ 91.185987][ T5847] start_kernel+0x1fb/0x500
[ 91.185998][ T5847] x86_64_start_reservations+0x24/0x30
[ 91.186016][ T5847] x86_64_start_kernel+0x143/0x1c0
[ 91.186034][ T5847] common_startup_64+0x13e/0x147
[ 91.186049][ T5847]
[ 91.186049][ T5847] -> #3 (&pool->lock){-.-.}-{2:2}:
[ 91.186067][ T5847] lock_acquire+0x120/0x360
[ 91.186085][ T5847] _raw_spin_lock+0x2e/0x40
[ 91.186101][ T5847] __queue_work+0x7b0/0xfe0
[ 91.186112][ T5847] queue_work_on+0x181/0x270
[ 91.186124][ T5847] rpm_suspend+0xe54/0x1720
[ 91.186136][ T5847] __pm_runtime_idle+0x12f/0x1a0
[ 91.186148][ T5847] __device_attach+0x342/0x400
[ 91.186161][ T5847] bus_probe_device+0x185/0x260
[ 91.186180][ T5847] device_add+0x7b6/0xb50
[ 91.186192][ T5847] serial_base_port_add+0x2f2/0x430
[ 91.186209][ T5847] serial_core_register_port+0x367/0x2700
[ 91.186230][ T5847] serial8250_register_8250_port+0x16db/0x2050
[ 91.186249][ T5847] serial_pnp_probe+0x527/0x790
[ 91.186268][ T5847] pnp_device_probe+0x30b/0x4c0
[ 91.186288][ T5847] really_probe+0x26a/0x9a0
[ 91.186303][ T5847] __driver_probe_device+0x18c/0x2f0
[ 91.186317][ T5847] driver_probe_device+0x4f/0x430
[ 91.186332][ T5847] __driver_attach+0x452/0x700
[ 91.186345][ T5847] bus_for_each_dev+0x230/0x2b0
[ 91.186363][ T5847] bus_add_driver+0x345/0x640
[ 91.186382][ T5847] driver_register+0x23a/0x320
[ 91.186398][ T5847] serial8250_init+0xc2/0x1c0
[ 91.186422][ T5847] do_one_initcall+0x233/0x820
[ 91.186444][ T5847] do_initcall_level+0x137/0x1f0
[ 91.186458][ T5847] do_initcalls+0x69/0xd0
[ 91.186470][ T5847] kernel_init_freeable+0x3d9/0x570
[ 91.186483][ T5847] kernel_init+0x1d/0x1d0
[ 91.186497][ T5847] ret_from_fork+0x3fc/0x770
[ 91.186516][ T5847] ret_from_fork_asm+0x1a/0x30
[ 91.186530][ T5847]
[ 91.186530][ T5847] -> #2 (&dev->power.lock){-.-.}-{3:3}:
[ 91.186549][ T5847] lock_acquire+0x120/0x360
[ 91.186567][ T5847] _raw_spin_lock_irqsave+0xa7/0xf0
[ 91.186585][ T5847] __pm_runtime_resume+0x10f/0x180
[ 91.186598][ T5847] __uart_start+0x171/0x440
[ 91.186618][ T5847] uart_write+0xdc/0x130
[ 91.186628][ T5847] n_tty_write+0xd32/0x11d0
[ 91.186644][ T5847] file_tty_write+0x500/0x990
[ 91.186665][ T5847] vfs_write+0x54b/0xa90
[ 91.186677][ T5847] ksys_write+0x145/0x250
[ 91.186689][ T5847] do_syscall_64+0xfa/0x3b0
[ 91.186700][ T5847] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 91.186713][ T5847]
[ 91.186713][ T5847] -> #1 (&port_lock_key){-.-.}-{3:3}:
[ 91.186730][ T5847] lock_acquire+0x120/0x360
[ 91.186748][ T5847] _raw_spin_lock_irqsave+0xa7/0xf0
[ 91.186765][ T5847] serial8250_console_write+0x17e/0x1ba0
[ 91.186787][ T5847] console_flush_all+0x728/0xc40
[ 91.186802][ T5847] console_unlock+0xc4/0x270
[ 91.186815][ T5847] vprintk_emit+0x5b7/0x7a0
[ 91.186827][ T5847] _printk+0xcf/0x120
[ 91.186840][ T5847] register_console+0xa8b/0xf90
[ 91.186855][ T5847] univ8250_console_init+0x52/0x90
[ 91.186871][ T5847] console_init+0x1a1/0x670
[ 91.186885][ T5847] start_kernel+0x2cc/0x500
[ 91.186896][ T5847] x86_64_start_reservations+0x24/0x30
[ 91.186913][ T5847] x86_64_start_kernel+0x143/0x1c0
[ 91.186930][ T5847] common_startup_64+0x13e/0x147
[ 91.186945][ T5847]
[ 91.186945][ T5847] -> #0 (console_owner){....}-{0:0}:
[ 91.186963][ T5847] validate_chain+0xb9b/0x2140
[ 91.186975][ T5847] __lock_acquire+0xab9/0xd20
[ 91.186994][ T5847] lock_acquire+0x120/0x360
[ 91.187012][ T5847] console_flush_all+0x6d2/0xc40
[ 91.187028][ T5847] console_unlock+0xc4/0x270
[ 91.187041][ T5847] vprintk_emit+0x5b7/0x7a0
[ 91.187053][ T5847] _printk+0xcf/0x120
[ 91.187066][ T5847] __debug_object_init+0x2c8/0x3c0
[ 91.187079][ T5847] rhashtable_init_noprof+0x7c0/0xbb0
[ 91.187100][ T5847] bch2_copygc_thread+0x116/0xdc0
[ 91.187121][ T5847] kthread+0x70e/0x8a0
[ 91.187135][ T5847] ret_from_fork+0x3fc/0x770
[ 91.187154][ T5847] ret_from_fork_asm+0x1a/0x30
[ 91.187168][ T5847]
[ 91.187168][ T5847] other info that might help us debug this:
[ 91.187168][ T5847]
[ 91.187173][ T5847] Chain exists of:
[ 91.187173][ T5847] console_owner --> &pool->lock --> &obj_hash[i].lock
[ 91.187173][ T5847]
[ 91.187195][ T5847] Possible unsafe locking scenario:
[ 91.187195][ T5847]
[ 91.187199][ T5847] CPU0 CPU1
[ 91.187203][ T5847] ---- ----
[ 91.187207][ T5847] lock(&obj_hash[i].lock);
[ 91.187216][ T5847] lock(&pool->lock);
[ 91.187226][ T5847] lock(&obj_hash[i].lock);
[ 91.187236][ T5847] lock(console_owner);
[ 91.187245][ T5847]
[ 91.187245][ T5847] *** DEADLOCK ***
[ 91.187245][ T5847]
[ 91.187249][ T5847] 3 locks held by bch-copygc/loop/5847:
[ 91.187257][ T5847] #0: ffffffff99d48cf8 (&obj_hash[i].lock){-.-.}-{2:2}, at: __debug_object_init+0x85/0x3c0
[ 91.187290][ T5847] #1: ffffffff8e1332e0 (console_lock){+.+.}-{0:0}, at: _printk+0xcf/0x120
[ 91.187322][ T5847] #2: ffffffff8e01abb0 (console_srcu){....}-{0:0}, at: console_flush_all+0x13a/0xc40
[ 91.187356][ T5847]
[ 91.187356][ T5847] stack backtrace:
[ 91.187370][ T5847] CPU: 0 UID: 0 PID: 5847 Comm: bch-copygc/loop Not tainted 6.15.0-next-20250530-syzkaller #0 PREEMPT(full)
[ 91.187387][ T5847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 91.187402][ T5847] Call Trace:
[ 91.187408][ T5847]
[ 91.187414][ T5847] dump_stack_lvl+0x189/0x250
[ 91.187429][ T5847] ? __pfx_dump_stack_lvl+0x10/0x10
[ 91.187442][ T5847] ? __pfx__printk+0x10/0x10
[ 91.187458][ T5847] ? print_lock_name+0xde/0x100
[ 91.187474][ T5847] print_circular_bug+0x2ee/0x310
[ 91.187490][ T5847] check_noncircular+0x134/0x160
[ 91.187507][ T5847] validate_chain+0xb9b/0x2140
[ 91.187530][ T5847] __lock_acquire+0xab9/0xd20
[ 91.187552][ T5847] ? console_flush_all+0x13a/0xc40
[ 91.187568][ T5847] lock_acquire+0x120/0x360
[ 91.187587][ T5847] ? console_flush_all+0x13a/0xc40
[ 91.187606][ T5847] ? do_raw_spin_unlock+0x122/0x240
[ 91.187623][ T5847] ? console_flush_all+0x13a/0xc40
[ 91.187639][ T5847] console_flush_all+0x6d2/0xc40
[ 91.187655][ T5847] ? console_flush_all+0x13a/0xc40
[ 91.187672][ T5847] ? console_flush_all+0x13a/0xc40
[ 91.187690][ T5847] ? __pfx_console_flush_all+0x10/0x10
[ 91.187710][ T5847] ? is_printk_cpu_sync_owner+0x32/0x40
[ 91.187731][ T5847] console_unlock+0xc4/0x270
[ 91.187746][ T5847] ? __pfx_console_unlock+0x10/0x10
[ 91.187761][ T5847] ? is_printk_cpu_sync_owner+0x32/0x40
[ 91.187785][ T5847] vprintk_emit+0x5b7/0x7a0
[ 91.187800][ T5847] ? __pfx_vprintk_emit+0x10/0x10
[ 91.187814][ T5847] ? __lock_acquire+0xab9/0xd20
[ 91.187837][ T5847] ? do_raw_spin_lock+0x121/0x290
[ 91.187856][ T5847] _printk+0xcf/0x120
[ 91.187872][ T5847] ? __pfx__printk+0x10/0x10
[ 91.187892][ T5847] __debug_object_init+0x2c8/0x3c0
[ 91.187908][ T5847] ? rhashtable_init_noprof+0x4ee/0xbb0
[ 91.187931][ T5847] rhashtable_init_noprof+0x7c0/0xbb0
[ 91.187955][ T5847] bch2_copygc_thread+0x116/0xdc0
[ 91.187978][ T5847] ? __lock_acquire+0xab9/0xd20
[ 91.188003][ T5847] ? __pfx_bch2_copygc_thread+0x10/0x10
[ 91.188024][ T5847] ? rcu_read_lock_sched_held+0x89/0x100
[ 91.188063][ T5847] ? __pfx_rhashtable_jhash2+0x10/0x10
[ 91.188098][ T5847] ? __kthread_parkme+0x7b/0x200
[ 91.188112][ T5847] ? __kthread_parkme+0x1a1/0x200
[ 91.188128][ T5847] kthread+0x70e/0x8a0
[ 91.188146][ T5847] ? __pfx_bch2_copygc_thread+0x10/0x10
[ 91.188168][ T5847] ? __pfx_kthread+0x10/0x10
[ 91.188184][ T5847] ? _raw_spin_unlock_irq+0x23/0x50
[ 91.188203][ T5847] ? lockdep_hardirqs_on+0x9c/0x150
[ 91.188224][ T5847] ? __pfx_kthread+0x10/0x10
[ 91.188240][ T5847] ret_from_fork+0x3fc/0x770
[ 91.188261][ T5847] ? __pfx_ret_from_fork+0x10/0x10
[ 91.188284][ T5847] ? __switch_to_asm+0x39/0x70
[ 91.188299][ T5847] ? __switch_to_asm+0x33/0x70
[ 91.188313][ T5847] ? __pfx_kthread+0x10/0x10
[ 91.188330][ T5847] ret_from_fork_asm+0x1a/0x30
[ 91.188350][ T5847]
[ 92.122490][ T5847] ------------[ cut here ]------------
[ 92.127955][ T5847] WARNING: CPU: 0 PID: 5847 at lib/debugobjects.c:655 __debug_object_init+0x2c9/0x3c0
[ 92.137506][ T5847] Modules linked in:
[ 92.141402][ T5847] CPU: 0 UID: 0 PID: 5847 Comm: bch-copygc/loop Not tainted 6.15.0-next-20250530-syzkaller #0 PREEMPT(full)
[ 92.153031][ T5847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 92.163086][ T5847] RIP: 0010:__debug_object_init+0x2c9/0x3c0
[ 92.168986][ T5847] Code: a1 06 cc 41 ff c7 44 89 3d a4 4f 13 15 48 c7 c1 00 a5 e2 8b 48 c7 c7 60 a5 e2 8b 84 c0 48 0f 45 f9 48 89 de e8 98 32 60 fc 90 <0f> 0b 90 e9 c0 fe ff ff e8 3a 1c 00 00 8b 05 3c 98 c5 09 3b 05 3a
[ 92.188591][ T5847] RSP: 0018:ffffc9000437f6e0 EFLAGS: 00010046
[ 92.194657][ T5847] RAX: 0000000000000050 RBX: ffffc9000437fb90 RCX: 5c59acafdf853100
[ 92.202633][ T5847] RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
[ 92.210604][ T5847] RBP: ffff88807b201e20 R08: ffff8880b8624293 R09: 1ffff110170c4852
[ 92.218585][ T5847] R10: dffffc0000000000 R11: ffffed10170c4853 R12: 0000000000000040
[ 92.226563][ T5847] R13: ffff8880319e9888 R14: dffffc0000000000 R15: 0000000000000001
[ 92.234534][ T5847] FS: 0000000000000000(0000) GS:ffff888125c53000(0000) knlGS:0000000000000000
[ 92.243466][ T5847] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 92.250051][ T5847] CR2: 000055e08126c1f0 CR3: 00000000784ca000 CR4: 00000000003526f0
[ 92.258024][ T5847] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 92.265994][ T5847] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 92.273986][ T5847] Call Trace:
[ 92.277287][ T5847]
[ 92.280220][ T5847] ? rhashtable_init_noprof+0x4ee/0xbb0
[ 92.285778][ T5847] rhashtable_init_noprof+0x7c0/0xbb0
[ 92.291165][ T5847] bch2_copygc_thread+0x116/0xdc0
[ 92.296208][ T5847] ? __lock_acquire+0xab9/0xd20
[ 92.301246][ T5847] ? __pfx_bch2_copygc_thread+0x10/0x10
[ 92.306801][ T5847] ? rcu_read_lock_sched_held+0x89/0x100
[ 92.312455][ T5847] ? __pfx_rhashtable_jhash2+0x10/0x10
[ 92.318018][ T5847] ? __kthread_parkme+0x7b/0x200
[ 92.322951][ T5847] ? __kthread_parkme+0x1a1/0x200
[ 92.327975][ T5847] kthread+0x70e/0x8a0
[ 92.332048][ T5847] ? __pfx_bch2_copygc_thread+0x10/0x10
[ 92.337606][ T5847] ? __pfx_kthread+0x10/0x10
[ 92.342203][ T5847] ? _raw_spin_unlock_irq+0x23/0x50
[ 92.347410][ T5847] ? lockdep_hardirqs_on+0x9c/0x150
[ 92.352621][ T5847] ? __pfx_kthread+0x10/0x10
[ 92.357220][ T5847] ret_from_fork+0x3fc/0x770
[ 92.361931][ T5847] ? __pfx_ret_from_fork+0x10/0x10
[ 92.367088][ T5847] ? __switch_to_asm+0x39/0x70
[ 92.371876][ T5847] ? __switch_to_asm+0x33/0x70
[ 92.376659][ T5847] ? __pfx_kthread+0x10/0x10
[ 92.381255][ T5847] ret_from_fork_asm+0x1a/0x30
[ 92.386024][ T5847]
[ 92.389044][ T5847] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 92.396327][ T5847] CPU: 0 UID: 0 PID: 5847 Comm: bch-copygc/loop Not tainted 6.15.0-next-20250530-syzkaller #0 PREEMPT(full)
[ 92.407877][ T5847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 92.417943][ T5847] Call Trace:
[ 92.421234][ T5847]
[ 92.424180][ T5847] dump_stack_lvl+0x99/0x250
[ 92.428788][ T5847] ? __asan_memcpy+0x40/0x70
[ 92.433392][ T5847] ? __pfx_dump_stack_lvl+0x10/0x10
[ 92.438592][ T5847] ? __pfx__printk+0x10/0x10
[ 92.443195][ T5847] panic+0x2db/0x790
[ 92.447109][ T5847] ? __pfx_panic+0x10/0x10
[ 92.451538][ T5847] ? show_trace_log_lvl+0x4fb/0x550
[ 92.456759][ T5847] ? ret_from_fork_asm+0x1a/0x30
[ 92.461708][ T5847] __warn+0x31b/0x4b0
[ 92.465705][ T5847] ? __debug_object_init+0x2c9/0x3c0
[ 92.471089][ T5847] ? __debug_object_init+0x2c9/0x3c0
[ 92.476477][ T5847] report_bug+0x2be/0x4f0
[ 92.480850][ T5847] ? __debug_object_init+0x2c9/0x3c0
[ 92.486139][ T5847] ? __debug_object_init+0x2c9/0x3c0
[ 92.491450][ T5847] ? __debug_object_init+0x2cb/0x3c0
[ 92.496741][ T5847] handle_bug+0x84/0x160
[ 92.500995][ T5847] exc_invalid_op+0x1a/0x50
[ 92.505508][ T5847] asm_exc_invalid_op+0x1a/0x20
[ 92.510364][ T5847] RIP: 0010:__debug_object_init+0x2c9/0x3c0
[ 92.516269][ T5847] Code: a1 06 cc 41 ff c7 44 89 3d a4 4f 13 15 48 c7 c1 00 a5 e2 8b 48 c7 c7 60 a5 e2 8b 84 c0 48 0f 45 f9 48 89 de e8 98 32 60 fc 90 <0f> 0b 90 e9 c0 fe ff ff e8 3a 1c 00 00 8b 05 3c 98 c5 09 3b 05 3a
[ 92.535883][ T5847] RSP: 0018:ffffc9000437f6e0 EFLAGS: 00010046
[ 92.541955][ T5847] RAX: 0000000000000050 RBX: ffffc9000437fb90 RCX: 5c59acafdf853100
[ 92.549928][ T5847] RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
[ 92.557910][ T5847] RBP: ffff88807b201e20 R08: ffff8880b8624293 R09: 1ffff110170c4852
[ 92.565887][ T5847] R10: dffffc0000000000 R11: ffffed10170c4853 R12: 0000000000000040
[ 92.573893][ T5847] R13: ffff8880319e9888 R14: dffffc0000000000 R15: 0000000000000001
[ 92.581885][ T5847] ? rhashtable_init_noprof+0x4ee/0xbb0
[ 92.587450][ T5847] rhashtable_init_noprof+0x7c0/0xbb0
[ 92.592845][ T5847] bch2_copygc_thread+0x116/0xdc0
[ 92.597887][ T5847] ? __lock_acquire+0xab9/0xd20
[ 92.602754][ T5847] ? __pfx_bch2_copygc_thread+0x10/0x10
[ 92.608309][ T5847] ? rcu_read_lock_sched_held+0x89/0x100
[ 92.613973][ T5847] ? __pfx_rhashtable_jhash2+0x10/0x10
[ 92.619456][ T5847] ? __kthread_parkme+0x7b/0x200
[ 92.624395][ T5847] ? __kthread_parkme+0x1a1/0x200
[ 92.629425][ T5847] kthread+0x70e/0x8a0
[ 92.633501][ T5847] ? __pfx_bch2_copygc_thread+0x10/0x10
[ 92.639081][ T5847] ? __pfx_kthread+0x10/0x10
[ 92.643678][ T5847] ? _raw_spin_unlock_irq+0x23/0x50
[ 92.648887][ T5847] ? lockdep_hardirqs_on+0x9c/0x150
[ 92.654099][ T5847] ? __pfx_kthread+0x10/0x10
[ 92.658697][ T5847] ret_from_fork+0x3fc/0x770
[ 92.663308][ T5847] ? __pfx_ret_from_fork+0x10/0x10
[ 92.668431][ T5847] ? __switch_to_asm+0x39/0x70
[ 92.673204][ T5847] ? __switch_to_asm+0x33/0x70
[ 92.677970][ T5847] ? __pfx_kthread+0x10/0x10
[ 92.682565][ T5847] ret_from_fork_asm+0x1a/0x30
[ 92.687339][ T5847]
[ 92.690678][ T5847] Kernel Offset: disabled
[ 92.695008][ T5847] Rebooting in 86400 seconds..