INFO: task kworker/1:1H:58 blocked for more than 143 seconds.
Not tainted 6.9.0-syzkaller-08414-g7ee332c9f12b #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:1H state:D stack:25208 pid:58 tgid:58 ppid:2 flags:0x00004000
Workqueue: bcachefs_btree_io btree_node_write_work
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6838
six_lock_slowpath+0x660/0x16a0 fs/bcachefs/six.c:493
six_lock_ip_waiter+0x117/0x160 fs/bcachefs/six.c:550
__btree_node_lock_nopath fs/bcachefs/btree_locking.h:208 [inline]
__bch2_btree_node_lock_write+0x11c/0x3c0 fs/bcachefs/btree_locking.c:429
__btree_node_lock_write fs/bcachefs/btree_locking.h:298 [inline]
bch2_btree_node_lock_write_nofail+0x24c/0x440 fs/bcachefs/btree_locking.c:443
__bch2_btree_node_update_key fs/bcachefs/btree_update_interior.c:2390 [inline]
bch2_btree_node_update_key+0x16ff/0x3260 fs/bcachefs/btree_update_interior.c:2450
bch2_btree_node_update_key_get_iter+0x87a/0xab0 fs/bcachefs/btree_update_interior.c:2494
btree_node_write_work+0x8a2/0xe10 fs/bcachefs/btree_io.c:1870
process_one_work kernel/workqueue.c:3231 [inline]
process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312
worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
INFO: task kworker/u9:2:5118 blocked for more than 145 seconds.
Not tainted 6.9.0-syzkaller-08414-g7ee332c9f12b #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u9:2 state:D stack:25144 pid:5118 tgid:5118 ppid:2 flags:0x00004000
Workqueue: bcachefs bch2_write_point_do_index_updates
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6838
six_lock_slowpath+0x660/0x16a0 fs/bcachefs/six.c:493
six_lock_ip_waiter+0x117/0x160 fs/bcachefs/six.c:550
__btree_node_lock_nopath fs/bcachefs/btree_locking.h:208 [inline]
btree_node_lock_nopath+0xb6/0x160 fs/bcachefs/btree_locking.h:221
btree_node_lock fs/bcachefs/btree_locking.h:268 [inline]
btree_path_lock_root fs/bcachefs/btree_iter.c:760 [inline]
bch2_btree_path_traverse_one+0xc78/0x3250 fs/bcachefs/btree_iter.c:1178
bch2_extent_update+0x11b/0xbb0 fs/bcachefs/io_write.c:289
bch2_write_index_default fs/bcachefs/io_write.c:374 [inline]
__bch2_write_index+0xee9/0x2190 fs/bcachefs/io_write.c:528
bch2_write_point_do_index_updates+0x32e/0x690 fs/bcachefs/io_write.c:637
process_one_work kernel/workqueue.c:3231 [inline]
process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312
worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/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:
2 locks held by kworker/u8:1/12:
#0: ffff888015081148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff888015081148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc90000117d00 ((work_completion)(&map->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc90000117d00 ((work_completion)(&map->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
1 lock held by khungtaskd/30:
#0: ffffffff8e3343a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#0: ffffffff8e3343a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#0: ffffffff8e3343a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by kworker/1:1/50:
#0: ffff888015078948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff888015078948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc90000ba7d00 (free_ipc_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc90000ba7d00 (free_ipc_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
4 locks held by kworker/1:1H/58:
#0: ffff88807e9e8d48 ((wq_completion)bcachefs_btree_io){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff88807e9e8d48 ((wq_completion)bcachefs_btree_io){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc9000133fd00 ((work_completion)(&wb->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc9000133fd00 ((work_completion)(&wb->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2: ffff888063004250 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:116 [inline]
#2: ffff888063004250 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:215 [inline]
#2: ffff888063004250 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x911/0xd30 fs/bcachefs/btree_iter.c:3069
#3: ffff88801f840070 (&dev->mutex){....}-{3:3}, at: bch2_btree_node_update_key_get_iter+0x198/0xab0 fs/bcachefs/btree_update_interior.c:2474
2 locks held by kworker/u8:7/2419:
#0: ffff8880b953e658 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559
#1: ffff8880b9528948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x441/0x770 kernel/sched/psi.c:988
2 locks held by getty/4851:
#0: ffff88802a80a0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002efe2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201
5 locks held by kworker/u9:2/5118:
#0: ffff88802bb97148 ((wq_completion)bcachefs){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff88802bb97148 ((wq_completion)bcachefs){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc90002d57d00 ((work_completion)(&wp->index_update_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc90002d57d00 ((work_completion)(&wp->index_update_work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2: ffff888063004250 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:116 [inline]
#2: ffff888063004250 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:215 [inline]
#2: ffff888063004250 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x911/0xd30 fs/bcachefs/btree_iter.c:3069
#3: ffff88805830a870 (&dev->mutex){....}-{3:3}, at: six_trylock_type fs/bcachefs/six.h:207 [inline]
#3: ffff88805830a870 (&dev->mutex){....}-{3:3}, at: btree_node_lock fs/bcachefs/btree_locking.h:266 [inline]
#3: ffff88805830a870 (&dev->mutex){....}-{3:3}, at: btree_path_lock_root fs/bcachefs/btree_iter.c:760 [inline]
#3: ffff88805830a870 (&dev->mutex){....}-{3:3}, at: bch2_btree_path_traverse_one+0xa85/0x3250 fs/bcachefs/btree_iter.c:1178
#4: ffff88801f840070 (&dev->mutex){....}-{3:3}, at: bch2_trans_iter_init fs/bcachefs/btree_iter.h:487 [inline]
#4: ffff88801f840070 (&dev->mutex){....}-{3:3}, at: bch2_write_index_default fs/bcachefs/io_write.c:369 [inline]
#4: ffff88801f840070 (&dev->mutex){....}-{3:3}, at: __bch2_write_index+0xbc3/0x2190 fs/bcachefs/io_write.c:528
4 locks held by syz-executor.3/8106:
1 lock held by syz-executor.2/8161:
#0: ffffffff8e339778 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
#0: ffffffff8e339778 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:939
1 lock held by syz-executor.0/10605:
#0: ffffffff8e339778 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
#0: ffffffff8e339778 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:939
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.9.0-syzkaller-08414-g7ee332c9f12b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
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:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xfde/0x1020 kernel/hung_task.c:380
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/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 PID: 8106 Comm: syz-executor.3 Not tainted 6.9.0-syzkaller-08414-g7ee332c9f12b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:bkey_iter_cmp_p_or_unp fs/bcachefs/bset.h:398 [inline]
RIP: 0010:bch2_bset_search_linear fs/bcachefs/bset.c:1217 [inline]
RIP: 0010:bch2_btree_node_iter_init+0x23c0/0x4300 fs/bcachefs/bset.c:1362
Code: 84 a3 00 00 00 e8 e0 e6 8c fd 4c 89 ff 48 8d b4 24 80 01 00 00 48 8b 54 24 30 e8 2b 62 fe ff 89 c3 31 ff 89 de e8 00 eb 8c fd <85> db 74 07 e8 b7 e6 8c fd eb 33 e8 b0 e6 8c fd 49 8d 5f 02 48 89
RSP: 0018:ffffc900091aef00 EFLAGS: 00000297
RAX: 0000000000000002 RBX: 0000000000000001 RCX: 0000000000040000
RDX: ffff888017f33c00 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900091af1b0 R08: ffffffff84094a90 R09: ffffffff84093141
R10: 0000000000000002 R11: ffff888017f33c00 R12: 1ffff92001235e1a
R13: ffff888055720268 R14: dffffc0000000000 R15: ffff888055720200
FS: 00007fd333e786c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005581aabcd4c8 CR3: 0000000016370000 CR4: 0000000000350ef0
Call Trace:
__bch2_btree_path_set_pos+0xb9a/0x1750 fs/bcachefs/btree_iter.c:1279
bch2_btree_path_set_pos fs/bcachefs/btree_iter.h:211 [inline]
bch2_btree_iter_peek_slot+0x717/0x2670 fs/bcachefs/btree_iter.c:2469
__bch2_read+0x9a2/0x2090 fs/bcachefs/io_read.c:1132
bch2_read fs/bcachefs/io_read.h:138 [inline]
bch2_direct_IO_read fs/bcachefs/fs-io-direct.c:160 [inline]
bch2_read_iter+0xce1/0x1430 fs/bcachefs/fs-io-direct.c:201
call_read_iter include/linux/fs.h:2114 [inline]
new_sync_read fs/read_write.c:395 [inline]
vfs_read+0x97d/0xb70 fs/read_write.c:476
ksys_read+0x1a0/0x2c0 fs/read_write.c:619
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd33307cee9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd333e780c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fd3331abf80 RCX: 00007fd33307cee9
RDX: 00000000fffffd9f RSI: 0000000020000280 RDI: 0000000000000005
RBP: 00007fd3330c949e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fd3331abf80 R15: 00007ffc648f25e8