INFO: task kworker/0:8:6451 blocked for more than 143 seconds. Not tainted 6.10.0-rc7-syzkaller-gc912bf709078 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:8 state:D stack:0 pid:6451 tgid:6451 ppid:2 flags:0x00000008 Workqueue: events_long bch2_fs_read_only_work Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5408 [inline] __schedule+0x14ac/0x24d8 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xbc/0x238 kernel/sched/core.c:6837 schedule_timeout+0xb8/0x33c kernel/time/timer.c:2557 do_wait_for_common+0x30c/0x468 kernel/sched/completion.c:95 __wait_for_common kernel/sched/completion.c:116 [inline] wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion+0x48/0x60 kernel/sched/completion.c:148 kthread_stop+0x1b4/0x734 kernel/kthread.c:710 bch2_rebalance_stop+0xc4/0xf4 fs/bcachefs/rebalance.c:454 __bch2_fs_read_only+0x54/0x3d0 fs/bcachefs/super.c:265 bch2_fs_read_only+0x930/0xf0c fs/bcachefs/super.c:356 bch2_fs_read_only_work+0x30/0x48 fs/bcachefs/super.c:393 process_one_work+0x79c/0x15b8 kernel/workqueue.c:3248 process_scheduled_works kernel/workqueue.c:3329 [inline] worker_thread+0x938/0xecc kernel/workqueue.c:3409 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 INFO: task syz.4.5:6504 blocked for more than 143 seconds. Not tainted 6.10.0-rc7-syzkaller-gc912bf709078 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.4.5 state:D stack:0 pid:6504 tgid:6503 ppid:6383 flags:0x0000000d Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5408 [inline] __schedule+0x14ac/0x24d8 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xbc/0x238 kernel/sched/core.c:6837 __closure_sync+0x198/0x29c lib/closure.c:146 closure_sync include/linux/closure.h:194 [inline] __bch2_write+0x41d8/0x47f4 fs/bcachefs/io_write.c:1506 bch2_write+0x8bc/0x153c fs/bcachefs/io_write.c:1634 closure_queue include/linux/closure.h:269 [inline] closure_call include/linux/closure.h:425 [inline] bch2_dio_write_loop fs/bcachefs/fs-io-direct.c:531 [inline] bch2_direct_write+0x1670/0x2988 fs/bcachefs/fs-io-direct.c:654 bch2_write_iter+0x1a8/0x2d24 fs/bcachefs/fs-io-buffered.c:1135 iter_file_splice_write+0x894/0xfc0 fs/splice.c:743 do_splice_from fs/splice.c:941 [inline] direct_splice_actor+0xec/0x1d8 fs/splice.c:1164 splice_direct_to_actor+0x438/0xa0c fs/splice.c:1108 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x1e4/0x304 fs/splice.c:1233 do_sendfile+0x46c/0xbd0 fs/read_write.c:1295 __do_sys_sendfile64 fs/read_write.c:1362 [inline] __se_sys_sendfile64 fs/read_write.c:1348 [inline] __arm64_sys_sendfile64+0x164/0x270 fs/read_write.c:1348 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:131 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:150 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 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 bch-rebalance/l:6528 blocked for more than 143 seconds. Not tainted 6.10.0-rc7-syzkaller-gc912bf709078 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:bch-rebalance/l state:D stack:0 pid:6528 tgid:6528 ppid:2 flags:0x00000048 Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5408 [inline] __schedule+0x14ac/0x24d8 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xbc/0x238 kernel/sched/core.c:6837 __closure_sync+0x198/0x29c lib/closure.c:146 closure_sync include/linux/closure.h:194 [inline] __bch2_write+0x41d8/0x47f4 fs/bcachefs/io_write.c:1506 bch2_write+0x8bc/0x153c fs/bcachefs/io_write.c:1634 closure_queue include/linux/closure.h:269 [inline] closure_call include/linux/closure.h:425 [inline] bch2_data_update_read_done+0x14c/0x1e0 fs/bcachefs/data_update.c:352 move_write fs/bcachefs/move.c:158 [inline] bch2_moving_ctxt_do_pending_writes+0x330/0x80c fs/bcachefs/move.c:189 bch2_data_update_init+0x1d50/0x3e78 fs/bcachefs/data_update.c:596 bch2_move_extent+0x9e8/0x4768 fs/bcachefs/move.c:338 do_rebalance_extent+0x458/0x5ec fs/bcachefs/rebalance.c:228 do_rebalance+0x6f0/0xeb4 fs/bcachefs/rebalance.c:356 bch2_rebalance_thread+0xc8/0x13c fs/bcachefs/rebalance.c:396 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 Showing all locks held in the system: 2 locks held by kworker/u8:0/11: 1 lock held by khungtaskd/32: #0: ffff80008f4b7be0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:328 2 locks held by getty/6134: #0: ffff0000d2d130a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff8000980ee2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211 3 locks held by kworker/1:3/6370: #0: ffff0000c0028948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3222 #1: ffff800098fd7c20 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3222 #2: ffff0000fe6a7240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x270/0x32bc drivers/net/netdevsim/fib.c:1489 3 locks held by kworker/0:8/6451: #0: ffff0000c0029148 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3222 #1: ffff800098667c20 ((work_completion)(&c->read_only_work)){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3222 #2: ffff0000f0d80278 (&c->state_lock){+.+.}-{3:3}, at: bch2_fs_read_only_work+0x28/0x48 fs/bcachefs/super.c:392 1 lock held by syz.4.5/6504: #0: ffff0000d5e12420 (sb_writers#12){.+.+}-{0:0}, at: direct_splice_actor+0x54/0x1d8 fs/splice.c:1163 =============================================