INFO: task syz.0.140:4801 blocked for more than 143 seconds.
Not tainted 5.15.167-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.140 state:D stack: 0 pid: 4801 ppid: 4028 flags:0x00000009
Call trace:
__switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0xf10/0x1e48 kernel/sched/core.c:6373
schedule+0x11c/0x1c8 kernel/sched/core.c:6456
xlog_grant_head_wait+0x390/0xa88 fs/xfs/xfs_log.c:256
xlog_grant_head_check+0x218/0x3d8
xfs_log_reserve+0x384/0xc1c fs/xfs/xfs_log.c:464
xfs_trans_reserve+0x1e8/0x5a4 fs/xfs/xfs_trans.c:197
xfs_trans_alloc+0x4c4/0xaa4 fs/xfs/xfs_trans.c:288
xfs_trans_alloc_inode+0x114/0x404 fs/xfs/xfs_trans.c:1047
xfs_attr_set+0x73c/0x11e0 fs/xfs/libxfs/xfs_attr.c:772
xfs_xattr_set+0x1a8/0x30c fs/xfs/xfs_xattr.c:59
__vfs_setxattr+0x388/0x3a4 fs/xattr.c:182
__vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:216
__vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:277
vfs_setxattr+0x1a8/0x344 fs/xattr.c:303
do_setxattr fs/xattr.c:588 [inline]
setxattr+0x250/0x2b4 fs/xattr.c:611
path_setxattr+0x17c/0x258 fs/xattr.c:630
__do_sys_lsetxattr fs/xattr.c:653 [inline]
__se_sys_lsetxattr fs/xattr.c:649 [inline]
__arm64_sys_lsetxattr+0xbc/0xd8 fs/xattr.c:649
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
INFO: task syz.0.140:4855 blocked for more than 144 seconds.
Not tainted 5.15.167-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.140 state:D stack: 0 pid: 4855 ppid: 4028 flags:0x00000001
Call trace:
__switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0xf10/0x1e48 kernel/sched/core.c:6373
schedule+0x11c/0x1c8 kernel/sched/core.c:6456
xlog_grant_head_wait+0x390/0xa88 fs/xfs/xfs_log.c:256
xlog_grant_head_check+0x218/0x3d8
xfs_log_reserve+0x384/0xc1c fs/xfs/xfs_log.c:464
xfs_trans_reserve+0x1e8/0x5a4 fs/xfs/xfs_trans.c:197
xfs_trans_alloc+0x4c4/0xaa4 fs/xfs/xfs_trans.c:288
xfs_vn_update_time+0x2c8/0x62c fs/xfs/xfs_iops.c:1058
inode_update_time fs/inode.c:1864 [inline]
touch_atime+0x434/0xa4c fs/inode.c:1937
file_accessed include/linux/fs.h:2521 [inline]
iterate_dir+0x288/0x4ec fs/readdir.c:70
__do_sys_getdents64 fs/readdir.c:369 [inline]
__se_sys_getdents64 fs/readdir.c:354 [inline]
__arm64_sys_getdents64+0x1c4/0x4c4 fs/readdir.c:354
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Showing all locks held in the system:
4 locks held by kworker/u4:0/9:
#0: ffff0000c03f4138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283
#1: ffff80001bc37c00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285
#2: ffff800016be7090 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf4/0x9bc net/core/net_namespace.c:561
#3: ffff0000e35453e8 (&wg->device_update_lock){+.+.}-{3:3}, at: wg_destruct+0x11c/0x2dc drivers/net/wireguard/device.c:233
2 locks held by kworker/1:0/21:
1 lock held by khungtaskd/27:
#0: ffff800014c917e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:311
1 lock held by udevd/3640:
2 locks held by getty/3775:
#0: ffff0000d10f6098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340
#1: ffff80001d5fe2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1204 drivers/tty/n_tty.c:2158
3 locks held by kworker/u4:7/4129:
1 lock held by udevd/4192:
#0: ffff0000cbed2118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x12c/0x89c block/bdev.c:817
2 locks held by kworker/0:8/4403:
#0: ffff0000d3867d38 ((wq_completion)xfs-sync/loop0){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283
#1: ffff800021857c00 ((work_completion)(&(&log->l_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285
3 locks held by syz.0.140/4801:
#0: ffff0000d7102460 (sb_writers#13){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:377
#1: ffff0000e5e9d580 (&sb->s_type->i_mutex_key#20){++++}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline]
#1: ffff0000e5e9d580 (&sb->s_type->i_mutex_key#20){++++}-{3:3}, at: vfs_setxattr+0x17c/0x344 fs/xattr.c:302
#2: ffff0000d7102650 (sb_internal#2){.+.+}-{0:0}, at: xfs_trans_alloc_inode+0x114/0x404 fs/xfs/xfs_trans.c:1047
4 locks held by syz.0.140/4855:
#0: ffff0000ecfb19f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x128/0x170 fs/file.c:1084
#1: ffff0000e5e98300 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: iterate_dir+0x108/0x4ec fs/readdir.c:55
#2: ffff0000d7102460 (sb_writers#13){.+.+}-{0:0}, at: file_accessed include/linux/fs.h:2521 [inline]
#2: ffff0000d7102460 (sb_writers#13){.+.+}-{0:0}, at: iterate_dir+0x288/0x4ec fs/readdir.c:70
#3: ffff0000d7102650 (sb_internal#2){.+.+}-{0:0}, at: xfs_vn_update_time+0x2c8/0x62c fs/xfs/xfs_iops.c:1058
1 lock held by syz.4.513/6225:
#0: ffff0000cbec9468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xa8/0x9b8 drivers/block/loop.c:1365
=============================================