INFO: task kworker/0:1H:50 blocked for more than 143 seconds. Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:1H state:D stack: 0 pid: 50 ppid: 2 flags:0x00000008 Workqueue: glock_workqueue glock_work_func Call trace: __switch_to+0x180/0x298 arch/arm64/kernel/process.c:557 context_switch kernel/sched/core.c:5182 [inline] __schedule+0x414/0x5a0 kernel/sched/core.c:6494 schedule+0x64/0xa4 kernel/sched/core.c:6570 rwsem_down_write_slowpath+0x258/0x468 kernel/locking/rwsem.c:1182 __down_write_common kernel/locking/rwsem.c:1297 [inline] __down_write kernel/locking/rwsem.c:1306 [inline] down_write+0x88/0xcc kernel/locking/rwsem.c:1553 freeze_super+0x40/0x1f0 fs/super.c:1696 freeze_go_sync+0x84/0x1a8 fs/gfs2/glops.c:573 do_xmote+0x180/0x954 fs/gfs2/glock.c:769 run_queue+0x294/0x3c4 fs/gfs2/glock.c:893 glock_work_func+0x190/0x288 fs/gfs2/glock.c:1059 process_one_work+0x2d8/0x504 kernel/workqueue.c:2289 worker_thread+0x340/0x610 kernel/workqueue.c:2436 kthread+0x12c/0x158 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 INFO: task syz-executor.1:7819 blocked for more than 143 seconds. Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack: 0 pid: 7819 ppid: 3076 flags:0x00000009 Call trace: __switch_to+0x180/0x298 arch/arm64/kernel/process.c:557 context_switch kernel/sched/core.c:5182 [inline] __schedule+0x414/0x5a0 kernel/sched/core.c:6494 schedule+0x64/0xa4 kernel/sched/core.c:6570 schedule_timeout+0x64/0x1b4 kernel/time/timer.c:1911 do_wait_for_common+0xf4/0x184 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+0x2b0/0x6dc kernel/workqueue.c:2861 gfs2_gl_hash_clear+0x64/0x1b0 fs/gfs2/glock.c:2209 gfs2_fill_super+0x554/0x874 fs/gfs2/ops_fstype.c:1300 get_tree_bdev+0x1e8/0x2a0 fs/super.c:1323 gfs2_get_tree+0x30/0xc0 fs/gfs2/ops_fstype.c:1323 vfs_get_tree+0x40/0x140 fs/super.c:1530 do_new_mount+0x1dc/0x4e4 fs/namespace.c:3040 path_mount+0x358/0x914 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __arm64_sys_mount+0x2c4/0x3c4 fs/namespace.c:3568 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/11: #0: ffff80000d433568 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507 1 lock held by rcu_tasks_trace/12: #0: ffff80000d433bb8 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507 1 lock held by khungtaskd/27: #0: ffff80000d433440 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:279 3 locks held by kworker/0:1H/50: #0: ffff0000c028b138 ((wq_completion)glock_workqueue){+.+.}-{0:0}, at: process_one_work+0x270/0x504 kernel/workqueue.c:2262 #1: ffff80000f683d80 ((work_completion)(&(&gl->gl_work)->work)){+.+.}-{0:0}, at: process_one_work+0x29c/0x504 kernel/workqueue.c:2264 #2: ffff0001165720e0 (&type->s_umount_key#74){+.+.}-{3:3}, at: freeze_super+0x40/0x1f0 fs/super.c:1696 2 locks held by getty/2719: #0: ffff0000c63e5898 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x28/0x58 drivers/tty/tty_ldisc.c:244 #1: ffff80000f6162f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x19c/0x89c drivers/tty/n_tty.c:2177 1 lock held by syz-executor.1/7819: #0: ffff0001165720e0 (&type->s_umount_key#73/1){+.+.}-{3:3}, at: alloc_super+0xf8/0x430 fs/super.c:228 1 lock held by syz-executor.1/14206: =============================================