INFO: task kworker/1:4:6586 blocked for more than 143 seconds. Not tainted 6.14.0-rc7-syzkaller-ga2392f333575 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:4 state:D stack:0 pid:6586 tgid:6586 ppid:2 task_flags:0x4208060 flags:0x00000008 Workqueue: events_long bch2_fs_read_only_work Call trace: __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T) context_switch kernel/sched/core.c:5378 [inline] __schedule+0x1360/0x257c kernel/sched/core.c:6765 __schedule_loop kernel/sched/core.c:6842 [inline] schedule+0xbc/0x238 kernel/sched/core.c:6857 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6914 rwsem_down_write_slowpath+0xd10/0x14c8 kernel/locking/rwsem.c:1176 __down_write_common kernel/locking/rwsem.c:1304 [inline] __down_write kernel/locking/rwsem.c:1313 [inline] down_write+0xb4/0xc0 kernel/locking/rwsem.c:1578 bch2_fs_read_only_work+0x28/0x48 fs/bcachefs/super.c:393 process_one_work+0x810/0x1638 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3400 kthread+0x65c/0x7b0 kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 INFO: task syz.0.388:10111 blocked for more than 143 seconds. Not tainted 6.14.0-rc7-syzkaller-ga2392f333575 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.388 state:D stack:0 pid:10111 tgid:10110 ppid:6583 task_flags:0x400140 flags:0x0000000d Call trace: __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T) context_switch kernel/sched/core.c:5378 [inline] __schedule+0x1360/0x257c kernel/sched/core.c:6765 __schedule_loop kernel/sched/core.c:6842 [inline] schedule+0xbc/0x238 kernel/sched/core.c:6857 __closure_sync+0x198/0x29c lib/closure.c:146 closure_sync include/linux/closure.h:195 [inline] bch2_journal_flush_pins+0x1e0/0x348 fs/bcachefs/journal_reclaim.c:911 bch2_journal_flush_all_pins fs/bcachefs/journal_reclaim.h:76 [inline] bch2_journal_replay+0x1c28/0x1f64 fs/bcachefs/recovery.c:442 bch2_run_recovery_pass+0xe4/0x1d4 fs/bcachefs/recovery_passes.c:226 bch2_run_recovery_passes+0x260/0x92c fs/bcachefs/recovery_passes.c:291 bch2_fs_recovery+0x20e0/0x32ec fs/bcachefs/recovery.c:936 bch2_fs_start+0x32c/0x570 fs/bcachefs/super.c:1041 bch2_fs_get_tree+0xa50/0x11d4 fs/bcachefs/fs.c:2203 vfs_get_tree+0x90/0x28c fs/super.c:1814 do_new_mount+0x278/0x900 fs/namespace.c:3560 path_mount+0x590/0xe04 fs/namespace.c:3887 do_mount fs/namespace.c:3900 [inline] __do_sys_mount fs/namespace.c:4111 [inline] __se_sys_mount fs/namespace.c:4088 [inline] __arm64_sys_mount+0x4f4/0x5d0 fs/namespace.c:4088 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Showing all locks held in the system: 1 lock held by khungtaskd/32: #0: ffff80008ff22620 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:336 1 lock held by udevd/6081: 2 locks held by getty/6220: #0: ffff0000d74fa0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80009bf4e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211 3 locks held by kworker/1:4/6586: #0: ffff0000c0029548 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work+0x674/0x1638 kernel/workqueue.c:3212 #1: ffff80009f6b7ba0 ((work_completion)(&c->read_only_work)){+.+.}-{0:0}, at: process_one_work+0x708/0x1638 kernel/workqueue.c:3212 #2: ffff0000e7500278 (&c->state_lock){+.+.}-{4:4}, at: bch2_fs_read_only_work+0x28/0x48 fs/bcachefs/super.c:393 1 lock held by syz.0.388/10111: #0: ffff0000e7500278 (&c->state_lock){+.+.}-{4:4}, at: bch2_fs_start+0x50/0x570 fs/bcachefs/super.c:1010 2 locks held by kworker/1:5/11232: #0: ffff0001b3772798 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:598 [inline] #0: ffff0001b3772798 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1521 [inline] #0: ffff0001b3772798 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1852 [inline] #0: ffff0001b3772798 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x2e0/0x257c kernel/sched/core.c:6688 #1: ffff0001b375d408 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x394/0x5e8 kernel/sched/psi.c:987 2 locks held by syz.3.1147/16990: 2 locks held by syz.4.1148/16993: #0: ffff0000fc500920 (&c->sb_lock){+.+.}-{4:4}, at: bch2_fs_alloc fs/bcachefs/super.c:833 [inline] #0: ffff0000fc500920 (&c->sb_lock){+.+.}-{4:4}, at: bch2_fs_open+0x1238/0x299c fs/bcachefs/super.c:2065 #1: ffff0000fc5049b0 (&c->mark_lock){++++}-{0:0}, at: bch2_sb_replicas_to_cpu_replicas+0x198/0x290 fs/bcachefs/replicas.c:600 3 locks held by syz.5.1149/17000: 2 locks held by syz.2.1150/17009: =============================================