INFO: task syz-executor.1:7073 blocked for more than 143 seconds.
Not tainted 6.5.0-rc6-syzkaller-00117-g0e8860d2125f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:23624 pid:7073 ppid:5068 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x1873/0x48f0 kernel/sched/core.c:6710
schedule+0xc3/0x180 kernel/sched/core.c:6786
io_schedule+0x8c/0x100 kernel/sched/core.c:9028
folio_wait_bit_common+0x86c/0x12b0 mm/filemap.c:1304
lock_page include/linux/pagemap.h:980 [inline]
set_page_dirty_lock+0xfd/0x2d0 mm/page-writeback.c:2823
bio_set_pages_dirty+0x1f7/0x2c0 block/bio.c:1490
iomap_dio_bio_iter+0xbd6/0x1490 fs/iomap/direct-io.c:334
__iomap_dio_rw+0x11fa/0x2250 fs/iomap/direct-io.c:575
iomap_dio_rw+0x46/0xa0 fs/iomap/direct-io.c:665
btrfs_dio_read+0xb6/0x100 fs/btrfs/inode.c:7902
btrfs_direct_read fs/btrfs/file.c:3765 [inline]
btrfs_file_read_iter+0x39f/0x6b0 fs/btrfs/file.c:3804
do_iter_read+0x829/0xdc0 fs/read_write.c:795
vfs_readv fs/read_write.c:915 [inline]
do_preadv+0x212/0x350 fs/read_write.c:1007
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: 0033:0x7fbbb927cae9
RSP: 002b:00007fbbba0a00c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000147
RAX: ffffffffffffffda RBX: 00007fbbb939bf80 RCX: 00007fbbb927cae9
RDX: 0000000000000001 RSI: 0000000020000100 RDI: 0000000000000004
RBP: 00007fbbb92c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fbbb939bf80 R15: 00007ffd24fdfe58
</TASK>
INFO: task syz-executor.1:7074 blocked for more than 143 seconds.
Not tainted 6.5.0-rc6-syzkaller-00117-g0e8860d2125f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:23624 pid:7074 ppid:5068 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x1873/0x48f0 kernel/sched/core.c:6710
schedule+0xc3/0x180 kernel/sched/core.c:6786
wait_on_state fs/btrfs/extent-io-tree.c:719 [inline]
wait_extent_bit+0x50c/0x670 fs/btrfs/extent-io-tree.c:763
lock_extent+0x1c0/0x270 fs/btrfs/extent-io-tree.c:1755
find_lock_delalloc_range+0x4b5/0x980 fs/btrfs/extent_io.c:443
writepage_delalloc+0x1bd/0x490 fs/btrfs/extent_io.c:1235
__extent_writepage fs/btrfs/extent_io.c:1492 [inline]
extent_write_cache_pages fs/btrfs/extent_io.c:2166 [inline]
extent_writepages+0x14ef/0x2ec0 fs/btrfs/extent_io.c:2293
do_writepages+0x3a6/0x670 mm/page-writeback.c:2553
filemap_fdatawrite_wbc+0x125/0x180 mm/filemap.c:393
__filemap_fdatawrite_range mm/filemap.c:426 [inline]
filemap_write_and_wait_range+0x1d4/0x2c0 mm/filemap.c:681
__iomap_dio_rw+0xa53/0x2250 fs/iomap/direct-io.c:520
iomap_dio_rw+0x46/0xa0 fs/iomap/direct-io.c:665
btrfs_dio_read+0xb6/0x100 fs/btrfs/inode.c:7902
btrfs_direct_read fs/btrfs/file.c:3765 [inline]
btrfs_file_read_iter+0x39f/0x6b0 fs/btrfs/file.c:3804
do_iter_read+0x829/0xdc0 fs/read_write.c:795
vfs_readv fs/read_write.c:915 [inline]
do_preadv+0x212/0x350 fs/read_write.c:1007
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: 0033:0x7fbbb927cae9
RSP: 002b:00007fbbba07f0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000147
RAX: ffffffffffffffda RBX: 00007fbbb939c050 RCX: 00007fbbb927cae9
RDX: 0000000000000001 RSI: 0000000020000100 RDI: 0000000000000004
RBP: 00007fbbb92c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fbbb939c050 R15: 00007ffd24fdfe58
</TASK>
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8d3295b0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:522
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8d329970 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:522
1 lock held by khungtaskd/28:
#0: ffffffff8d3293e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/u4:2/41:
#0: ffff888019a5b138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x7e3/0x12c0 kernel/workqueue.c:2572
#1: ffffc90000b27d00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x82b/0x12c0 kernel/workqueue.c:2574
#2: ffff888038f0a0e0 (&type->s_umount_key#78){++++}-{3:3}, at: trylock_super+0x1f/0xf0 fs/super.c:413
2 locks held by kworker/u4:3/47:
#0: ffff8880b983bf98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:558
#1: ffffc90000b87d00 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_one_work+0x82b/0x12c0 kernel/workqueue.c:2574
2 locks held by getty/4766:
#0: ffff88814b267098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900015c02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b1/0x1dc0 drivers/tty/n_tty.c:2187
1 lock held by syz-executor.1/7073:
#0: ffff888038629830 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:781 [inline]
#0: ffff888038629830 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: btrfs_inode_lock+0x60/0xd0 fs/btrfs/inode.c:369
1 lock held by syz-executor.1/7074:
#0: ffff888038629830 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:781 [inline]
#0: ffff888038629830 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: btrfs_inode_lock+0x60/0xd0 fs/btrfs/inode.c:369
2 locks held by syz-executor.1/9178:
#0: ffff888038f0a0e0 (&type->s_umount_key#78){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0 fs/super.c:742
#1: ffff888038f087d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:364 [inline]
#1: ffff888038f087d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x278/0xab0 fs/fs-writeback.c:2734
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.5.0-rc6-syzkaller-00117-g0e8860d2125f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
<TASK>
__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:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xec2/0xf00 kernel/hung_task.c:379
kthread+0x2b8/0x350 kernel/kthread.c:389
ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
</TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 57 Comm: kworker/u4:4 Not tainted 6.5.0-rc6-syzkaller-00117-g0e8860d2125f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Workqueue: bat_events batadv_nc_worker
RIP: 0010:__lock_acquire+0x380/0x7f70 kernel/locking/lockdep.c:5070
Code: 0a 8b e8 b3 ba e7 ff 0f 0b e9 8c 13 00 00 48 8b 44 24 58 4c 89 e3 49 89 c4 4c 8d a8 c8 0a 00 00 83 fb 31 88 94 24 b0 00 00 00 <0f> 83 f7 1b 00 00 48 89 4c 24 10 48 89 5c 24 28 48 8d 34 9b 49 8d
RSP: 0018:ffffc900015876a0 EFLAGS: 00000087
RAX: ffff8880166e9dc0 RBX: 0000000000000002 RCX: 00000000000006e0
RDX: ffff888034e18801 RSI: 0000000000000000 RDI: ffff888034e188d8
RBP: ffffc90001587968 R08: dffffc0000000000 R09: 00000000000006e0
R10: dffffc0000000000 R11: fffffbfff1d30ebe R12: ffff8880166e9dc0
R13: ffff8880166ea888 R14: 0000000000000000 R15: ffff8880166ea8d0
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000557b03039680 CR3: 000000000d130000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<NMI>
</NMI>
<TASK>
lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5761
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
batadv_nc_purge_paths+0xe8/0x3a0 net/batman-adv/network-coding.c:442
batadv_nc_worker+0x30f/0x5c0 net/batman-adv/network-coding.c:722
process_one_work+0x92c/0x12c0 kernel/workqueue.c:2600
worker_thread+0xa63/0x1210 kernel/workqueue.c:2751
kthread+0x2b8/0x350 kernel/kthread.c:389
ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
</TASK>