INFO: task kworker/u4:7:24232 blocked for more than 143 seconds.
Not tainted 6.2.0-rc7-syzkaller-00002-gd2d11f342b17 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:7 state:D stack:20504 pid:24232 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn (flush-btrfs-245)
Call Trace:
__schedule+0x13ca/0x43c0
schedule+0xc3/0x190
io_schedule+0x8c/0x100
folio_wait_bit_common+0x7fe/0x1210
extent_writepages+0x8c4/0x1790
do_writepages+0x3a6/0x660
__writeback_single_inode+0x1a9/0x1550
writeback_sb_inodes+0x965/0x13b0
__writeback_inodes_wb+0x11b/0x260
wb_writeback+0x4ef/0x1040
wb_workfn+0xd72/0x1110
process_one_work+0x96c/0x13e0
worker_thread+0xa63/0x1210
kthread+0x270/0x300
ret_from_fork+0x1f/0x30
INFO: task syz-executor.3:27412 blocked for more than 143 seconds.
Not tainted 6.2.0-rc7-syzkaller-00002-gd2d11f342b17 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:25240 pid:27412 ppid:5083 flags:0x00004004
Call Trace:
__schedule+0x13ca/0x43c0
schedule+0xc3/0x190
io_schedule+0x8c/0x100
folio_wait_bit_common+0x7fe/0x1210
extent_writepages+0x8c4/0x1790
do_writepages+0x3a6/0x660
filemap_fdatawrite_wbc+0x125/0x180
filemap_flush+0x14c/0x1d0
btrfs_release_file+0x117/0x130
__fput+0x3b7/0x890
task_work_run+0x24a/0x300
exit_to_user_mode_loop+0xd1/0xf0
exit_to_user_mode_prepare+0xb1/0x140
syscall_exit_to_user_mode+0x54/0x2d0
do_syscall_64+0x4d/0xc0
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f163483df7b
RSP: 002b:00007ffe9abbc5a0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f163483df7b
RDX: 0000001b30c20000 RSI: 00007f1634005968 RDI: 0000000000000004
RBP: 00007f16349ad980 R08: 0000000000000000 R09: 000000005ea182d0
R10: 00007ffe9abc2080 R11: 0000000000000293 R12: 0000000000101711
R13: 00007ffe9abbc6a0 R14: 00007ffe9abbc6c0 R15: 0000000000000032
INFO: task syz-executor.3:27415 blocked for more than 144 seconds.
Not tainted 6.2.0-rc7-syzkaller-00002-gd2d11f342b17 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:23656 pid:27415 ppid:5083 flags:0x00004004
Call Trace:
__schedule+0x13ca/0x43c0
schedule+0xc3/0x190
wait_extent_bit+0x50c/0x6a0
lock_extent+0x1bb/0x270
find_lock_delalloc_range+0x4c9/0x9a0
writepage_delalloc+0x1f1/0x590
__extent_writepage+0x952/0x1840
extent_writepages+0xbc6/0x1790
do_writepages+0x3a6/0x660
filemap_fdatawrite_wbc+0x125/0x180
filemap_fdatawrite_range+0x17b/0x200
start_ordered_ops+0xdb/0x210
btrfs_sync_file+0x4af/0x1220
btrfs_do_write_iter+0xccc/0x1270
vfs_write+0x7dd/0xc50
ksys_write+0x17c/0x2a0
do_syscall_64+0x41/0xc0
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f163488c0c9
RSP: 002b:00007f1635612168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f16349abf80 RCX: 00007f163488c0c9
RDX: 0000000000000090 RSI: 0000000020000000 RDI: 0000000000000006
RBP: 00007f16348e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe9abbc53f R14: 00007f1635612300 R15: 0000000000022000
INFO: task syz-executor.3:27472 blocked for more than 144 seconds.
Not tainted 6.2.0-rc7-syzkaller-00002-gd2d11f342b17 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:24584 pid:27472 ppid:5083 flags:0x00004004
Call Trace:
__schedule+0x13ca/0x43c0
schedule+0xc3/0x190
rwsem_down_read_slowpath+0x5ef/0x930
__down_read_common+0x54/0x290
btrfs_page_mkwrite+0x416/0xc90
do_page_mkwrite+0x1a1/0x600
do_wp_page+0x506/0x3270
handle_mm_fault+0x2388/0x51c0
exc_page_fault+0x66a/0x880
asm_exc_page_fault+0x26/0x30
RIP: 0010:copy_user_short_string+0xd/0x40
Code: 74 0a 89 d1 f3 a4 89 c8 0f 01 ca c3 89 d0 0f 01 ca c3 01 ca eb e7 0f 1f 80 00 00 00 00 89 d1 83 e2 07 c1 e9 03 74 12 4c 8b 06 <4c> 89 07 48 8d 76 08 48 8d 7f 08 ff c9 75 ee 21 d2 74 10 89 d1 8a
RSP: 0018:ffffc90003b3f330 EFLAGS: 00050202
RAX: ffffffff8435f301 RBX: 00007fffffffefc8 RCX: 0000000000000007
RDX: 0000000000000000 RSI: ffffc90003b3f3e0 RDI: 0000000020000120
RBP: ffffc90003b3f488 R08: 0000000000000000 R09: fffff52000767e83
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000038
R13: ffffc90003b3f3e0 R14: 0000000020000120 R15: ffffc90003b3f3e0
_copy_to_user+0xed/0x130
fiemap_fill_next_extent+0x235/0x410
emit_fiemap_extent+0x242/0x3f0
fiemap_process_hole+0xa71/0xb40
extent_fiemap+0xe42/0x2100
btrfs_fiemap+0x178/0x1e0
do_vfs_ioctl+0x194f/0x2a40
__se_sys_ioctl+0x81/0x160
do_syscall_64+0x41/0xc0
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f163488c0c9
RSP: 002b:00007f16355f1168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f16349ac050 RCX: 00007f163488c0c9
RDX: 0000000020000100 RSI: 00000000c020660b RDI: 0000000000000005
RBP: 00007f16348e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe9abbc53f R14: 00007f16355f1300 R15: 0000000000022000
Showing all locks held in the system:
5 locks held by kworker/u4:0/9:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cf26e10 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xce0
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8cf27610 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xce0
1 lock held by khungtaskd/28:
#0: ffffffff8cf26c40 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/4747:
#0: ffff88814a853098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
#1: ffffc900015b02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1630
3 locks held by kworker/u4:7/24232:
#0: ffff8880175bc938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x7eb/0x13e0
#1: ffffc900157efd20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x835/0x13e0
#2: ffff88802af840e0 (&type->s_umount_key#50){++++}-{3:3}, at: trylock_super+0x1f/0xf0
4 locks held by syz-executor.3/27415:
#0: ffff88802bf7a0e8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x254/0x2f0
#1: ffff88802af84460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x27f/0xc50
#2: ffff8880737a2c60 (&sb->s_type->i_mutex_key#21){++++}-{3:3}, at: btrfs_inode_lock+0x4d/0xd0
#3: ffff8880737a2ae8 (&ei->i_mmap_lock){++++}-{3:3}, at: btrfs_inode_lock+0xc5/0xd0
3 locks held by syz-executor.3/27472:
#0: ffff88802c2b8158 (&mm->mmap_lock){++++}-{3:3}, at: exc_page_fault+0x18d/0x880
#1: ffff88802af84558 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x1a1/0x600
#2: ffff8880737a2ae8 (&ei->i_mmap_lock){++++}-{3:3}, at: btrfs_page_mkwrite+0x416/0xc90
2 locks held by syz-executor.4/27742:
#0: ffff88802af840e0 (&type->s_umount_key#50){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0
#1: ffff88802af807d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x26c/0xa60
2 locks held by syz-executor.0/27823:
#0: ffff88802af840e0 (&type->s_umount_key#50){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0
#1: ffff88802af807d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x26c/0xa60
2 locks held by syz-executor.4/27859:
#0: ffff88802af840e0 (&type->s_umount_key#50){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0
#1: ffff88802af807d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x26c/0xa60
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc7-syzkaller-00002-gd2d11f342b17 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
dump_stack_lvl+0x1b5/0x2a0
nmi_cpu_backtrace+0x47b/0x500
nmi_trigger_cpumask_backtrace+0x1d3/0x430
watchdog+0xf70/0xfb0
kthread+0x270/0x300
ret_from_fork+0x1f/0x30
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 15886 Comm: kworker/u4:10 Not tainted 6.2.0-rc7-syzkaller-00002-gd2d11f342b17 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Workqueue: bat_events batadv_nc_worker
RIP: 0010:__lock_acquire+0x11af/0x1f80
Code: 27 88 74 00 48 bf 00 00 00 00 00 fc ff df 48 83 3b 00 0f 84 a3 04 00 00 41 0f b6 04 3f 84 c0 0f 85 09 0a 00 00 48 8b 44 24 08 <8b> 18 81 e3 ff 1f 00 00 48 89 d8 48 c1 e8 06 48 8d 3c c5 80 e1 21
RSP: 0018:ffffc9000b6df9a0 EFLAGS: 00000046
RAX: ffff88807a9b6268 RBX: ffffffff8ff64280 RCX: ffffffff8169ffd7
RDX: 0000000000000000 RSI: 0000000000000008 RDI: dffffc0000000000
RBP: 9d78783796135ff5 R08: dffffc0000000000 R09: fffffbfff2043c4b
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807a9b61f0
R13: ffff88807a9b57c0 R14: 0000000000000000 R15: 1ffff1100f536c4d
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c001cff788 CR3: 000000000cc8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x20b/0x600
rcu_lock_acquire+0x2e/0x40
batadv_nc_worker+0xca/0x580
process_one_work+0x96c/0x13e0
worker_thread+0xa63/0x1210
kthread+0x270/0x300
ret_from_fork+0x1f/0x30