INFO: task bch-reclaim/loo:5861 blocked for more than 143 seconds.
Not tainted 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:bch-reclaim/loo state:D stack:28088 pid:5861 tgid:5861 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
__mutex_lock_common kernel/locking/mutex.c:665 [inline]
__mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735
bch2_journal_reclaim_thread+0x167/0x560 fs/bcachefs/journal_reclaim.c:739
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744
5 locks held by kworker/u8:2/35:
2 locks held by getty/5582:
#0: ffff8880315ac0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
8 locks held by syz-executor316/5853:
1 lock held by bch-reclaim/loo/5861:
#0: ffff888073d4b0a8 (&j->reclaim_lock){+.+.}-{4:4}, at: bch2_journal_reclaim_thread+0x167/0x560 fs/bcachefs/journal_reclaim.c:739
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline]
watchdog+0xff6/0x1040 kernel/hung_task.c:397
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5853 Comm: syz-executor316 Not tainted 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__bkey_unpack_pos+0x512/0x790 fs/bcachefs/bkey.c:306
Code: 24 18 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 0f 85 52 01 00 00 44 89 2b 48 89 d8 48 83 c4 28 5b <41> 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 89 d9 80 e1 07 38 c1 0f
RSP: 0018:ffffc9000421c390 EFLAGS: 00000286
RAX: ffffc9000421c400 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000020 RDI: 0000000000000040
RBP: 0000000000000000 R08: ffffffff841346db R09: 0000000000000000
R10: ffffc9000421c400 R11: fffff52000843882 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000003
FS: 00005555821ec380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005591458f4680 CR3: 0000000076ba6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
bkey_unpack_pos_format_checked fs/bcachefs/bkey.h:456 [inline]
__bch2_bkey_cmp_left_packed_format_checked fs/bcachefs/bkey.c:1028 [inline]
__bch2_bkey_cmp_left_packed+0xed/0x790 fs/bcachefs/bkey.c:1048
bkey_cmp_left_packed fs/bcachefs/bkey.h:88 [inline]
bch2_bkey_pack_pos_lossy+0xa08/0x1990 fs/bcachefs/bkey.c:532
bch2_btree_node_iter_init+0x894/0x4280 fs/bcachefs/bset.c:1313
__btree_path_level_init fs/bcachefs/btree_iter.c:615 [inline]
bch2_btree_path_level_init+0x4d2/0x9f0 fs/bcachefs/btree_iter.c:635
btree_path_lock_root fs/bcachefs/btree_iter.c:769 [inline]
bch2_btree_path_traverse_one+0x10de/0x2940 fs/bcachefs/btree_iter.c:1183
bch2_btree_path_traverse fs/bcachefs/btree_iter.h:247 [inline]
__bch2_btree_iter_peek fs/bcachefs/btree_iter.c:2210 [inline]
bch2_btree_iter_peek_upto+0xb58/0x70e0 fs/bcachefs/btree_iter.c:2310
bch2_btree_iter_peek_upto_type fs/bcachefs/btree_iter.h:685 [inline]
bch2_bucket_alloc_freelist fs/bcachefs/alloc_foreground.c:495 [inline]
bch2_bucket_alloc_trans+0x1122/0x3a50 fs/bcachefs/alloc_foreground.c:648
bch2_bucket_alloc_set_trans+0x517/0xd30 fs/bcachefs/alloc_foreground.c:808
__open_bucket_add_buckets+0x13d0/0x1ec0 fs/bcachefs/alloc_foreground.c:1057
open_bucket_add_buckets+0x33a/0x410 fs/bcachefs/alloc_foreground.c:1101
bch2_alloc_sectors_start_trans+0xce9/0x2030
__bch2_btree_node_alloc fs/bcachefs/btree_update_interior.c:339 [inline]
bch2_btree_reserve_get+0x612/0x1890 fs/bcachefs/btree_update_interior.c:549
bch2_btree_update_start+0x115d/0x14e0 fs/bcachefs/btree_update_interior.c:1266
bch2_btree_split_leaf+0x123/0x840 fs/bcachefs/btree_update_interior.c:1856
bch2_trans_commit_error+0x212/0x1380 fs/bcachefs/btree_trans_commit.c:942
__bch2_trans_commit+0x7ead/0x93c0 fs/bcachefs/btree_trans_commit.c:1140
bch2_trans_commit fs/bcachefs/btree_update.h:184 [inline]
bch2_btree_write_buffer_flush_locked+0x4f4e/0x5a00 fs/bcachefs/btree_write_buffer.c:433
btree_write_buffer_flush_seq+0x1b23/0x1cc0 fs/bcachefs/btree_write_buffer.c:517
bch2_btree_write_buffer_journal_flush+0xc7/0x150 fs/bcachefs/btree_write_buffer.c:533
journal_flush_pins+0x5f7/0xb20 fs/bcachefs/journal_reclaim.c:565
journal_flush_done+0x8e/0x260 fs/bcachefs/journal_reclaim.c:819
bch2_journal_flush_pins+0x225/0x3a0 fs/bcachefs/journal_reclaim.c:852
bch2_journal_flush_all_pins fs/bcachefs/journal_reclaim.h:76 [inline]
__bch2_fs_read_only+0x13a/0x450 fs/bcachefs/super.c:276
bch2_fs_read_only+0xb57/0x1200 fs/bcachefs/super.c:356
__bch2_fs_stop+0x105/0x5c0 fs/bcachefs/super.c:621
bch2_fs_get_tree+0xceb/0x1710 fs/bcachefs/fs.c:2269
vfs_get_tree+0x90/0x2b0 fs/super.c:1814
do_new_mount+0x2be/0xb40 fs/namespace.c:3507
do_mount fs/namespace.c:3847 [inline]
__do_sys_mount fs/namespace.c:4057 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbd492cb39a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 ee 08 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff9e0a4c28 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fbd492cb39a
RDX: 0000000020000140 RSI: 00000000200001c0 RDI: 00007fff9e0a4c70
RBP: 0000000000000004 R08: 00007fff9e0a4cb0 R09: 0000000000005a9b
R10: 0000000001000084 R11: 0000000000000282 R12: 00007fff9e0a4c70
R13: 00007fff9e0a4cb0 R14: 0000000001000000 R15: 0000000000000003
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 4.662 msecs