INFO: task syz-executor.4:12639 blocked for more than 143 seconds.
      Not tainted 6.10.0-rc3-syzkaller-00021-g2ef5971ff345 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:28032 pid:12639 tgid:12636 ppid:11370  flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0xf15/0x5d00 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6837
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
 cgrp_css_online+0xa9/0x200 net/core/netprio_cgroup.c:157
 online_css+0xaf/0x2a0 kernel/cgroup/cgroup.c:5499
 css_create kernel/cgroup/cgroup.c:5570 [inline]
 cgroup_apply_control_enable+0x6d7/0xc80 kernel/cgroup/cgroup.c:3217
 cgroup_mkdir+0x39b/0x1120 kernel/cgroup/cgroup.c:5763
 kernfs_iop_mkdir+0x14a/0x1d0 fs/kernfs/dir.c:1246
 vfs_mkdir+0x57d/0x860 fs/namei.c:4131
 do_mkdirat+0x301/0x3a0 fs/namei.c:4154
 __do_sys_mkdirat fs/namei.c:4169 [inline]
 __se_sys_mkdirat fs/namei.c:4167 [inline]
 __x64_sys_mkdirat+0x114/0x170 fs/namei.c:4167
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd55ba7cea9
RSP: 002b:00007fd55c7e40c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007fd55bbb3f80 RCX: 00007fd55ba7cea9
RDX: 00000000000001ff RSI: 0000000020000040 RDI: ffffffffffffff9c
RBP: 00007fd55baebff4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fd55bbb3f80 R15: 00007ffcb94c45c8
 </TASK>
INFO: task syz-executor.4:12644 blocked for more than 143 seconds.
      Not tainted 6.10.0-rc3-syzkaller-00021-g2ef5971ff345 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:29184 pid:12644 tgid:12636 ppid:11370  flags:0x00000006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0xf15/0x5d00 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6837
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
 rwsem_down_read_slowpath+0x61e/0xb20 kernel/locking/rwsem.c:1086
 __down_read_common kernel/locking/rwsem.c:1250 [inline]
 __down_read kernel/locking/rwsem.c:1263 [inline]
 down_read+0x124/0x330 kernel/locking/rwsem.c:1528
 inode_lock_shared include/linux/fs.h:801 [inline]
 lookup_slow fs/namei.c:1708 [inline]
 walk_component+0x342/0x5b0 fs/namei.c:2004
 lookup_last fs/namei.c:2469 [inline]
 path_lookupat+0x17f/0x770 fs/namei.c:2493
 do_o_path fs/namei.c:3778 [inline]
 path_openat+0x1a47/0x29f0 fs/namei.c:3800