INFO: task syz-executor.4:6638 blocked for more than 143 seconds.
      Not tainted 6.11.0-rc7-syzkaller-00105-g5f5673607153 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:0     pid:6638  tgid:6638  ppid:1      flags:0x0000000d
Call trace:
 __switch_to+0x420/0x6dc arch/arm64/kernel/process.c:603
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0x13d4/0x2418 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6621
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6678
 __mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:684
 __mutex_lock kernel/locking/mutex.c:752 [inline]
 mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:804
 lmLogClose+0xc8/0x4d4 fs/jfs/jfs_logmgr.c:1444
 jfs_umount+0x274/0x360 fs/jfs/jfs_umount.c:114
 jfs_put_super+0x90/0x188 fs/jfs/super.c:194
 generic_shutdown_super+0x128/0x2b8 fs/super.c:642
 kill_block_super+0x44/0x90 fs/super.c:1696
 deactivate_locked_super+0xc4/0x12c fs/super.c:473
 deactivate_super+0xe0/0x100 fs/super.c:506
 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1373
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1380
 task_work_run+0x230/0x2e0 kernel/task_work.c:228
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]
 el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:713
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
INFO: task syz-executor.2:6645 blocked for more than 143 seconds.
      Not tainted 6.11.0-rc7-syzkaller-00105-g5f5673607153 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:0     pid:6645  tgid:6645  ppid:1      flags:0x0000000d
Call trace:
 __switch_to+0x420/0x6dc arch/arm64/kernel/process.c:603
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0x13d4/0x2418 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6621
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6678
 __mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:684
 __mutex_lock kernel/locking/mutex.c:752 [inline]
 mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:804
 lmLogClose+0xc8/0x4d4 fs/jfs/jfs_logmgr.c:1444
 jfs_umount+0x274/0x360 fs/jfs/jfs_umount.c:114
 jfs_put_super+0x90/0x188 fs/jfs/super.c:194
 generic_shutdown_super+0x128/0x2b8 fs/super.c:642
 kill_block_super+0x44/0x90 fs/super.c:1696
 deactivate_locked_super+0xc4/0x12c fs/super.c:473
 deactivate_super+0xe0/0x100 fs/super.c:506
 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1373
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1380
 task_work_run+0x230/0x2e0 kernel/task_work.c:228
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]
 el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:713
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598

Showing all locks held in the system:
1 lock held by khungtaskd/31:
 #0: 
ffff80008f74dfa0
 (
rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:325
2 locks held by kworker/u8:9/2089:
2 locks held by getty/6176:
 #0: ffff0000d24820a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80009b54b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211
6 locks held by syz-executor.0/6634:
2 locks held by syz-executor.4/6638:
 #0: ffff0000da4280e0 (&type->s_umount_key#52){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline]
 #0: ffff0000da4280e0 (&type->s_umount_key#52){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
 #0: ffff0000da4280e0 (&type->s_umount_key#52){+.+.}-{3:3}, at: deactivate_super+0xd8/0x100 fs/super.c:505
 #1: ffff80008fb442c8 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xc8/0x4d4 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor.2/6645:
 #0: ffff0000d63700e0 (&type->s_umount_key#52){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline]
 #0: ffff0000d63700e0 (&type->s_umount_key#52){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
 #0: ffff0000d63700e0 (&type->s_umount_key#52){+.+.}-{3:3}, at: deactivate_super+0xd8/0x100 fs/super.c:505
 #1: 
ffff80008fb442c8
 (
jfs_log_mutex
){+.+.}-{3:3}, at: lmLogClose+0xc8/0x4d4 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor.1/7129:
 #0: ffff0000eb1080e0 (&type->s_umount_key#52){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline]
 #0: ffff0000eb1080e0 (&type->s_umount_key#52){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
 #0: ffff0000eb1080e0 (&type->s_umount_key#52){+.+.}-{3:3}, at: deactivate_super+0xd8/0x100 fs/super.c:505
 #1: ffff80008fb442c8 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xc8/0x4d4 fs/jfs/jfs_logmgr.c:1444
1 lock held by syz-executor.3/7240:
 #0: ffff0000e6c340e0 (&type->s_umount_key#52){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline]
 #0: ffff0000e6c340e0 (&type->s_umount_key#52){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
 #0: ffff0000e6c340e0 (&type->s_umount_key#52){+.+.}-{3:3}, at: deactivate_super+0xd8/0x100 fs/super.c:505

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