INFO: task kworker/u4:11:7909 blocked for more than 143 seconds.
Not tainted 6.3.0-syzkaller-00436-g173ea743bf7a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:11 state:D stack:19808 pid:7909 ppid:2 flags:0x00004000
Workqueue: btrfs-flush_delalloc btrfs_work_helper
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
io_schedule+0x8c/0x100 kernel/sched/core.c:8887
folio_wait_bit_common+0x86c/0x12b0 mm/filemap.c:1301
folio_lock include/linux/pagemap.h:952 [inline]
extent_write_cache_pages fs/btrfs/extent_io.c:2615 [inline]
extent_writepages+0xa65/0x1930 fs/btrfs/extent_io.c:2755
do_writepages+0x3a6/0x670 mm/page-writeback.c:2551
filemap_fdatawrite_wbc+0x125/0x180 mm/filemap.c:390
__filemap_fdatawrite_range mm/filemap.c:423 [inline]
__filemap_fdatawrite mm/filemap.c:429 [inline]
filemap_flush+0x11e/0x170 mm/filemap.c:456
btrfs_run_delalloc_work+0x63/0xf0 fs/btrfs/inode.c:9208
btrfs_work_helper+0x380/0xbe0 fs/btrfs/async-thread.c:280
process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2390
worker_thread+0xa63/0x1210 kernel/workqueue.c:2537
kthread+0x2b2/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task syz-executor.1:20707 blocked for more than 143 seconds.
Not tainted 6.3.0-syzkaller-00436-g173ea743bf7a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:21928 pid:20707 ppid:5006 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760
rwsem_down_read_slowpath+0x5f4/0x950 kernel/locking/rwsem.c:1086
__down_read_common+0x61/0x2c0 kernel/locking/rwsem.c:1250
inode_lock_shared include/linux/fs.h:768 [inline]
btrfs_inode_lock+0x60/0xd0 fs/btrfs/inode.c:169
btrfs_direct_write fs/btrfs/file.c:1477 [inline]
btrfs_do_write_iter+0x664/0x1270 fs/btrfs/file.c:1674
do_iter_write+0x7b1/0xcb0 fs/read_write.c:860
iter_file_splice_write+0x843/0xfe0 fs/splice.c:779
do_splice_from fs/splice.c:857 [inline]
direct_splice_actor+0xe7/0x1c0 fs/splice.c:1023
splice_direct_to_actor+0x4c4/0xbd0 fs/splice.c:978
do_splice_direct+0x283/0x3d0 fs/splice.c:1066
do_sendfile+0x620/0xff0 fs/read_write.c:1254
__do_sys_sendfile64 fs/read_write.c:1322 [inline]
__se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1308
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1c7f48c169
RSP: 002b:00007f1c802c6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f1c7f5abf80 RCX: 00007f1c7f48c169
RDX: 0000000000000000 RSI: 000000000000000b RDI: 000000000000000a
RBP: 00007f1c7f4e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201004 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd3a5ff3ef R14: 00007f1c802c6300 R15: 0000000000022000
INFO: task syz-executor.1:20779 blocked for more than 143 seconds.
Not tainted 6.3.0-syzkaller-00436-g173ea743bf7a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:22088 pid:20779 ppid:5006 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760
rwsem_down_read_slowpath+0x5f4/0x950 kernel/locking/rwsem.c:1086
__down_read_common+0x61/0x2c0 kernel/locking/rwsem.c:1250
inode_lock_shared include/linux/fs.h:768 [inline]
btrfs_inode_lock+0x60/0xd0 fs/btrfs/inode.c:169
btrfs_direct_write fs/btrfs/file.c:1477 [inline]
btrfs_do_write_iter+0x97c/0x1270 fs/btrfs/file.c:1674
do_iter_write+0x7b1/0xcb0 fs/read_write.c:860
iter_file_splice_write+0x843/0xfe0 fs/splice.c:779
do_splice_from fs/splice.c:857 [inline]
direct_splice_actor+0xe7/0x1c0 fs/splice.c:1023
splice_direct_to_actor+0x4c4/0xbd0 fs/splice.c:978
do_splice_direct+0x283/0x3d0 fs/splice.c:1066
do_sendfile+0x620/0xff0 fs/read_write.c:1254
__do_sys_sendfile64 fs/read_write.c:1322 [inline]
__se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1308
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1c7f48c169
RSP: 002b:00007f1c802a5168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f1c7f5ac050 RCX: 00007f1c7f48c169
RDX: 0000000000000000 RSI: 000000000000000c RDI: 0000000000000007
RBP: 00007f1c7f4e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201004 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd3a5ff3ef R14: 00007f1c802a5300 R15: 0000000000022000
INFO: task syz-executor.1:20781 blocked for more than 144 seconds.
Not tainted 6.3.0-syzkaller-00436-g173ea743bf7a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:24800 pid:20781 ppid:5006 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2143
do_wait_for_common+0x449/0x5f0 kernel/sched/completion.c:85
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x4a/0x60 kernel/sched/completion.c:138
start_delalloc_inodes+0xa75/0xcb0 fs/btrfs/inode.c:9300
btrfs_start_delalloc_snapshot+0x15d/0x1c0 fs/btrfs/inode.c:9326
try_flush_qgroup+0x179/0x340 fs/btrfs/qgroup.c:3741
btrfs_qgroup_reserve_data+0x7c/0xc0 fs/btrfs/qgroup.c:3833
btrfs_check_data_free_space+0x149/0x240 fs/btrfs/delalloc-space.c:154
btrfs_delalloc_reserve_space+0x37/0x200 fs/btrfs/delalloc-space.c:467
defrag_one_locked_target fs/btrfs/defrag.c:1037 [inline]
defrag_one_range fs/btrfs/defrag.c:1109 [inline]
defrag_one_cluster fs/btrfs/defrag.c:1187 [inline]
btrfs_defrag_file+0x1738/0x2a50 fs/btrfs/defrag.c:1312
btrfs_ioctl_defrag+0x36d/0x410 fs/btrfs/ioctl.c:2604
btrfs_ioctl+0xc37/0xd40
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1c7f48c169
RSP: 002b:00007f1c80263168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f1c7f5ac1f0 RCX: 00007f1c7f48c169
RDX: 0000000000000000 RSI: 0000000050009402 RDI: 0000000000000007
RBP: 00007f1c7f4e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd3a5ff3ef R14: 00007f1c80263300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8cf256b0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8cf25a70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by khungtaskd/28:
#0: ffffffff8cf254e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/u4:4/57:
#0: ffff8880b993be98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:539
#1: ffff8880b9928788 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3a7/0x770 kernel/sched/psi.c:964
#2: ffff8880b9929598 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x120/0x260 kernel/time/timer.c:999
3 locks held by kworker/u4:5/1149:
#0: ffff8881451f5138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc90005707d20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
#2: ffff888035ece0e0 (&type->s_umount_key#57){++++}-{3:3}, at: trylock_super+0x1f/0xf0 fs/super.c:414
2 locks held by getty/4729:
#0: ffff88802cd7c098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2177
2 locks held by kworker/u4:11/7909:
#0: ffff8880352e4138 ((wq_completion)btrfs-flush_delalloc){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc90016b77d20 ((work_completion)(&work->normal_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
2 locks held by syz-executor.1/20707:
#0: ffff888035ece460 (sb_writers#17){.+.+}-{0:0}, at: do_sendfile+0x5fb/0xff0 fs/read_write.c:1253
#1: ffff888073f121a0 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline]
#1: ffff888073f121a0 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: btrfs_inode_lock+0x60/0xd0 fs/btrfs/inode.c:169
2 locks held by syz-executor.1/20779:
#0: ffff888035ece460 (sb_writers#17){.+.+}-{0:0}, at: do_sendfile+0x5fb/0xff0 fs/read_write.c:1253
#1: ffff888073f121a0 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline]
#1: ffff888073f121a0 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: btrfs_inode_lock+0x60/0xd0 fs/btrfs/inode.c:169
3 locks held by syz-executor.1/20781:
#0: ffff888035ece460 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write_file+0x5e/0x1f0 fs/namespace.c:438
#1: ffff888073f121a0 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#1: ffff888073f121a0 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: btrfs_inode_lock+0x4d/0xd0 fs/btrfs/inode.c:177
#2: ffff888025f04758 (&root->delalloc_mutex){+.+.}-{3:3}, at: start_delalloc_inodes+0x1ac/0xcb0 fs/btrfs/inode.c:9252
2 locks held by syz-executor.4/20886:
#0: ffff888035ece0e0 (&type->s_umount_key#57){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0 fs/super.c:743
#1: ffff8880341607d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:364 [inline]
#1: ffff8880341607d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x278/0xab0 fs/fs-writeback.c:2728
2 locks held by syz-executor.4/21013:
#0: ffff888035ece0e0 (&type->s_umount_key#57){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0 fs/super.c:743
#1: ffff8880341607d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:364 [inline]
#1: ffff8880341607d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x278/0xab0 fs/fs-writeback.c:2728
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.3.0-syzkaller-00436-g173ea743bf7a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x187/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xec2/0xf00 kernel/hung_task.c:379
kthread+0x2b2/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 9012 Comm: kworker/0:25 Not tainted 6.3.0-syzkaller-00436-g173ea743bf7a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Workqueue: events_power_efficient wg_ratelimiter_gc_entries
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:26 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:67 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:103 [inline]
RIP: 0010:lock_is_held_type+0x66/0x190 kernel/locking/lockdep.c:5758
Code: 85 f1 00 00 00 65 4c 8b 2d 97 b3 64 75 41 83 bd 34 0a 00 00 00 0f 85 db 00 00 00 41 89 f6 49 89 ff 48 c7 04 24 00 00 00 00 9c <8f> 04 24 4c 8b 24 24 fa 48 c7 c7 a0 8a ea 8a e8 36 17 00 00 65 ff
RSP: 0018:ffffc90015d67a90 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000f31 RCX: ffff8880707a0000
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff8cf25460
RBP: 00000000ffffffff R08: dffffc0000000000 R09: fffffbfff1b1c915
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff8880707a0000 R14: 00000000ffffffff R15: ffffffff8cf25460
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a8496f4680 CR3: 000000000cd30000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_is_held include/linux/lockdep.h:288 [inline]
__might_resched+0xf4/0x780 kernel/sched/core.c:10023
wg_ratelimiter_gc_entries+0x3cd/0x470 drivers/net/wireguard/ratelimiter.c:78
process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2390
worker_thread+0xa63/0x1210 kernel/workqueue.c:2537
kthread+0x2b2/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308