INFO: task syz-executor.0:14430 blocked for more than 143 seconds.
Not tainted 6.1.0-rc8-syzkaller-00148-g0d1409e4ff08 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:20320 pid:14430 ppid:3657 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6521
schedule+0xcb/0x190 kernel/sched/core.c:6597
rwsem_down_write_slowpath+0xfc1/0x1480 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write_nested+0x23f/0x280 kernel/locking/rwsem.c:1673
inode_lock_nested include/linux/fs.h:791 [inline]
lock_rename+0xa0/0x1a0 fs/namei.c:2998
do_renameat2+0x4a0/0x1370 fs/namei.c:4871
__do_sys_rename fs/namei.c:4976 [inline]
__se_sys_rename fs/namei.c:4974 [inline]
__x64_sys_rename+0x82/0x90 fs/namei.c:4974
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f86f9a8c0d9
RSP: 002b:00007f86fa713168 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007f86f9babf80 RCX: 00007f86f9a8c0d9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000020000380
RBP: 00007f86f9ae7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc844b468f R14: 00007f86fa713300 R15: 0000000000022000
INFO: task syz-executor.0:14453 blocked for more than 143 seconds.
Not tainted 6.1.0-rc8-syzkaller-00148-g0d1409e4ff08 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:21280 pid:14453 ppid:3657 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6521
schedule+0xcb/0x190 kernel/sched/core.c:6597
io_schedule+0x83/0x100 kernel/sched/core.c:8741
bit_wait_io+0xe/0xc0 kernel/sched/wait_bit.c:209
__wait_on_bit_lock+0xbb/0x1a0 kernel/sched/wait_bit.c:90
out_of_line_wait_on_bit_lock+0x1c3/0x240 kernel/sched/wait_bit.c:117
wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline]
__lock_buffer fs/buffer.c:69 [inline]
lock_buffer include/linux/buffer_head.h:397 [inline]
__sync_dirty_buffer+0x107/0x330 fs/buffer.c:2732
__ext4_handle_dirty_metadata+0x29a/0x810 fs/ext4/ext4_jbd2.c:381
ext4_handle_dirty_dirblock+0x363/0x6b0 fs/ext4/namei.c:438
ext4_finish_convert_inline_dir+0x58a/0x700 fs/ext4/inline.c:1182
ext4_convert_inline_data_nolock+0x63c/0x820 fs/ext4/inline.c:1259
ext4_try_add_inline_entry+0x683/0x990 fs/ext4/inline.c:1332
ext4_add_entry+0x5a4/0xeb0 fs/ext4/namei.c:2385
ext4_mkdir+0x557/0xcf0 fs/ext4/namei.c:3007
vfs_mkdir+0x3b3/0x590 fs/namei.c:4036
do_mkdirat+0x279/0x550 fs/namei.c:4061
__do_sys_mkdirat fs/namei.c:4076 [inline]
__se_sys_mkdirat fs/namei.c:4074 [inline]
__x64_sys_mkdirat+0x85/0x90 fs/namei.c:4074
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f86f9a8c0d9
RSP: 002b:00007f86f023e168 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f86f9bac050 RCX: 00007f86f9a8c0d9
RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000005
RBP: 00007f86f9ae7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc844b468f R14: 00007f86f023e300 R15: 0000000000022000
INFO: task syz-executor.0:14491 blocked for more than 143 seconds.
Not tainted 6.1.0-rc8-syzkaller-00148-g0d1409e4ff08 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:25480 pid:14491 ppid:3657 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6521
schedule+0xcb/0x190 kernel/sched/core.c:6597
rwsem_down_write_slowpath+0xfc1/0x1480 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write_nested+0x23f/0x280 kernel/locking/rwsem.c:1673
inode_lock_nested include/linux/fs.h:791 [inline]
do_rmdir+0x257/0x610 fs/namei.c:4169
__do_sys_rmdir fs/namei.c:4201 [inline]
__se_sys_rmdir fs/namei.c:4199 [inline]
__x64_sys_rmdir+0x45/0x50 fs/namei.c:4199
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f86f9a8c0d9
RSP: 002b:00007f86f021d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000054
RAX: ffffffffffffffda RBX: 00007f86f9bac120 RCX: 00007f86f9a8c0d9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180
RBP: 00007f86f9ae7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc844b468f R14: 00007f86f021d300 R15: 0000000000022000
INFO: task syz-executor.0:14496 blocked for more than 144 seconds.
Not tainted 6.1.0-rc8-syzkaller-00148-g0d1409e4ff08 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:24728 pid:14496 ppid:3657 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6521
schedule+0xcb/0x190 kernel/sched/core.c:6597
rwsem_down_write_slowpath+0xfc1/0x1480 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write+0x231/0x270 kernel/locking/rwsem.c:1563
inode_lock include/linux/fs.h:756 [inline]
open_last_lookups fs/namei.c:3478 [inline]
path_openat+0x7b9/0x2df0 fs/namei.c:3711
do_filp_open+0x264/0x4f0 fs/namei.c:3741
do_sys_openat2+0x124/0x4e0 fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_open fs/open.c:1334 [inline]
__se_sys_open fs/open.c:1330 [inline]
__x64_sys_open+0x221/0x270 fs/open.c:1330
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f86f9a8c0d9
RSP: 002b:00007f86efffc168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f86f9bac1f0 RCX: 00007f86f9a8c0d9
RDX: 0000000000000000 RSI: 000000000014d27e RDI: 0000000020000180
RBP: 00007f86f9ae7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc844b468f R14: 00007f86efffc300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d127330 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8d127b30 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8d127160 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by kworker/u4:5/1155:
2 locks held by getty/3311:
#0: ffff8880290ba098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1650 drivers/tty/n_tty.c:2177
3 locks held by kworker/u4:7/3797:
#0: ffff88814590e138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc90004d67d00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
#2: ffff88814014a0e0 (&type->s_umount_key#40){.+.+}-{3:3}, at: trylock_super+0x1b/0xf0 fs/super.c:415
3 locks held by syz-executor.0/14430:
#0: ffff888077b82460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393
#1: ffff888077b82748 (&type->s_vfs_rename_key){+.+.}-{3:3}, at: lock_rename+0x54/0x1a0 fs/namei.c:2994
#2: ffff888035d56850 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:791 [inline]
#2: ffff888035d56850 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: lock_rename+0xa0/0x1a0 fs/namei.c:2998
3 locks held by syz-executor.0/14453:
#0: ffff888077b82460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393
#1: ffff888035d56850 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:791 [inline]
#1: ffff888035d56850 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: filename_create+0x22a/0x4f0 fs/namei.c:3807
#2: ffff888035d56518 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline]
#2: ffff888035d56518 (&ei->xattr_sem){++++}-{3:3}, at: ext4_try_add_inline_entry+0xe1/0x990 fs/ext4/inline.c:1290
2 locks held by syz-executor.0/14491:
#0: ffff888077b82460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393
#1: ffff888035d56850 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:791 [inline]
#1: ffff888035d56850 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: do_rmdir+0x257/0x610 fs/namei.c:4169
2 locks held by syz-executor.0/14496:
#0: ffff888077b82460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393
#1: ffff888035d56850 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff888035d56850 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: open_last_lookups fs/namei.c:3478 [inline]
#1: ffff888035d56850 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: path_openat+0x7b9/0x2df0 fs/namei.c:3711
1 lock held by udevd/14689:
#0: ffff88814742a4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0x100/0x730 block/bdev.c:911
1 lock held by syz-executor.0/14741:
#0: ffff88814742a4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xfd/0xa40 block/bdev.c:813
1 lock held by syz-executor.3/17534:
#0: ffff88814742a4c8 (&disk->open_mutex){+.+.}-{3:3}, at: sync_bdevs+0x1b0/0x320 block/bdev.c:1052
2 locks held by syz-executor.3/17536:
#0: ffff888077b820e0 (&type->s_umount_key#31){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881474307d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881474307d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2712
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc8-syzkaller-00148-g0d1409e4ff08 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
nmi_cpu_backtrace+0x46f/0x4f0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1ba/0x420 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xcf5/0xd40 kernel/hung_task.c:377
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2449 Comm: kworker/u4:6 Not tainted 6.1.0-rc8-syzkaller-00148-g0d1409e4ff08 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: bat_events batadv_nc_worker
RIP: 0010:match_held_lock+0x0/0xb0 kernel/locking/lockdep.c:5113
Code: 56 ff ff ff 31 db 48 c7 c7 40 b1 ed 8a 48 c7 c6 80 b1 ed 8a 31 c0 e8 0f bd bf f6 0f 0b e9 38 ff ff ff e8 c3 fa ff ff 0f 1f 00 <55> 53 bd 01 00 00 00 48 39 77 10 74 67 48 89 fb 81 7f 20 00 00 10
RSP: 0018:ffffc9000a497990 EFLAGS: 00000083
RAX: 0000000000000003 RBX: 0000000000000001 RCX: 0000000080000001
RDX: 0000000000000000 RSI: ffffffff8d1270e0 RDI: ffff8880273fe238
RBP: ffff8880273fe238 R08: dffffc0000000000 R09: fffffbfff1cebeae
R10: fffffbfff1cebeae R11: 1ffffffff1cebead R12: 0000000000000246
R13: ffff8880273fd7c0 R14: 00000000ffffffff R15: ffffffff8d1270e0
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa3cb607c30 CR3: 0000000027798000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__lock_is_held kernel/locking/lockdep.c:5409 [inline]
lock_is_held_type+0xa1/0x180 kernel/locking/lockdep.c:5711
lock_is_held include/linux/lockdep.h:283 [inline]
rcu_read_lock_sched_held+0x87/0x110 kernel/rcu/update.c:125
trace_lock_release+0x95/0x220 include/trace/events/lock.h:69
lock_release+0x81/0x820 kernel/locking/lockdep.c:5679
rcu_read_unlock include/linux/rcupdate.h:771 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline]
batadv_nc_worker+0x251/0x5b0 net/batman-adv/network-coding.c:719
process_one_work+0x877/0xdb0 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306