INFO: task kworker/1:1H:1657 blocked for more than 143 seconds. Not tainted 6.2.0-syzkaller-18295-ga9b06ec42c0f #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:1H state:D stack:0 pid:1657 ppid:2 flags:0x00000008 Workqueue: glock_workqueue glock_work_func Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5296 [inline] __schedule+0xfc8/0x1d64 kernel/sched/core.c:6609 schedule+0xc4/0x170 kernel/sched/core.c:6685 rwsem_down_write_slowpath+0xd60/0x161c kernel/locking/rwsem.c:1190 __down_write_common kernel/locking/rwsem.c:1305 [inline] __down_write kernel/locking/rwsem.c:1314 [inline] down_write+0x84/0x88 kernel/locking/rwsem.c:1563 freeze_super+0x58/0x378 fs/super.c:1655 freeze_go_sync+0x128/0x31c fs/gfs2/glops.c:577 do_xmote+0x2f0/0x11d8 fs/gfs2/glock.c:708 run_queue+0x400/0x688 fs/gfs2/glock.c:846 glock_work_func+0x270/0x440 fs/gfs2/glock.c:1056 process_one_work+0x848/0x16b4 kernel/workqueue.c:2289 worker_thread+0x8e4/0xfec kernel/workqueue.c:2436 kthread+0x24c/0x2d4 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 INFO: task syz-executor.2:6265 blocked for more than 143 seconds. Not tainted 6.2.0-syzkaller-18295-ga9b06ec42c0f #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:0 pid:6265 ppid:5977 flags:0x00000009 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5296 [inline] __schedule+0xfc8/0x1d64 kernel/sched/core.c:6609 schedule+0xc4/0x170 kernel/sched/core.c:6685 schedule_timeout+0xb8/0x348 kernel/time/timer.c:2143 do_wait_for_common+0x30c/0x468 kernel/sched/completion.c:85 __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x48/0x60 kernel/sched/completion.c:138 __flush_workqueue+0x580/0x11c4 kernel/workqueue.c:2861 gfs2_gl_hash_clear+0xd0/0x2e0 fs/gfs2/glock.c:2193 gfs2_fill_super+0x1b68/0x1f9c fs/gfs2/ops_fstype.c:1307 get_tree_bdev+0x360/0x54c fs/super.c:1282 gfs2_get_tree+0x54/0x1b4 fs/gfs2/ops_fstype.c:1330 vfs_get_tree+0x90/0x274 fs/super.c:1489 do_new_mount+0x25c/0x8c8 fs/namespace.c:3145 path_mount+0x590/0xe58 fs/namespace.c:3475 do_mount fs/namespace.c:3488 [inline] __do_sys_mount fs/namespace.c:3697 [inline] __se_sys_mount fs/namespace.c:3674 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3674 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffff800015e06ff0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcb4 kernel/rcu/tasks.h:507 1 lock held by rcu_tasks_trace/13: #0: ffff800015e077f0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcb4 kernel/rcu/tasks.h:507 1 lock held by khungtaskd/28: #0: ffff800015e06e20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:324 3 locks held by kworker/1:1H/1657: #0: ffff0000c1848938 ((wq_completion)glock_workqueue){+.+.}-{0:0}, at: process_one_work+0x664/0x16b4 kernel/workqueue.c:2262 #1: ffff8000225d7c20 ((work_completion)(&(&gl->gl_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6a8/0x16b4 kernel/workqueue.c:2264 #2: ffff0000d47cc0e0 (&type->s_umount_key#53){++++}-{3:3}, at: freeze_super+0x58/0x378 fs/super.c:1655 1 lock held by klogd/5443: 2 locks held by getty/5603: #0: ffff0000d8930098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80001a8f02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1210 drivers/tty/n_tty.c:2177 1 lock held by syz-executor.2/6265: #0: ffff0000d47cc0e0 (&type->s_umount_key#52/1){+.+.}-{3:3}, at: alloc_super+0x1b4/0x824 fs/super.c:228 1 lock held by syz-executor.1/8345: #0: ffff0000d47cc0e0 (&type->s_umount_key#53){++++}-{3:3}, at: iterate_supers+0xb0/0x1dc fs/super.c:722 =============================================