INFO: task kworker/u9:0:53 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/u9:0 state:D stack:0 pid:53 tgid:53 ppid:2 flags:0x00000008 Workqueue: bcachefs bch2_write_point_do_index_updates 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 six_lock_slowpath+0x87c/0x15d4 fs/bcachefs/six.c:493 six_lock_ip_waiter+0x124/0x178 fs/bcachefs/six.c:550 __btree_node_lock_nopath fs/bcachefs/btree_locking.h:208 [inline] __bch2_btree_node_lock_write+0x110/0x308 fs/bcachefs/btree_locking.c:428 __btree_node_lock_write fs/bcachefs/btree_locking.h:298 [inline] bch2_btree_node_lock_write fs/bcachefs/btree_locking.h:306 [inline] bch2_trans_lock_write+0x5e0/0xa4c fs/bcachefs/btree_trans_commit.c:124 do_bch2_trans_commit fs/bcachefs/btree_trans_commit.c:872 [inline] __bch2_trans_commit+0x261c/0x592c fs/bcachefs/btree_trans_commit.c:1119 bch2_trans_commit fs/bcachefs/btree_update.h:170 [inline] bch2_extent_update+0x3d0/0x9b4 fs/bcachefs/io_write.c:326 bch2_write_index_default fs/bcachefs/io_write.c:374 [inline] __bch2_write_index+0x6b4/0x1324 fs/bcachefs/io_write.c:527 bch2_write_point_do_index_updates+0x288/0x560 fs/bcachefs/io_write.c:636 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 bch-reclaim/loo:7428 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-reclaim/loo state:D stack:0 pid:7428 tgid:7428 ppid:2 flags:0x00000008 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 six_lock_slowpath+0x87c/0x15d4 fs/bcachefs/six.c:493 six_lock_ip_waiter+0x124/0x178 fs/bcachefs/six.c:550 __btree_node_lock_nopath fs/bcachefs/btree_locking.h:208 [inline] btree_node_lock_nopath+0xc0/0x150 fs/bcachefs/btree_locking.h:221 btree_node_lock fs/bcachefs/btree_locking.h:268 [inline] bch2_btree_path_traverse_cached+0x580/0xa24 fs/bcachefs/btree_key_cache.c:567 bch2_btree_path_traverse_one+0x36c/0x2b7c fs/bcachefs/btree_iter.c:1153 bch2_btree_path_traverse fs/bcachefs/btree_iter.h:229 [inline] bch2_btree_iter_traverse+0x4d4/0x9d4 fs/bcachefs/btree_iter.c:1856 btree_key_cache_flush_pos+0x208/0x880 fs/bcachefs/btree_key_cache.c:621 bch2_btree_key_cache_journal_flush+0x2ac/0x3d4 fs/bcachefs/btree_key_cache.c:736 journal_flush_pins+0x524/0xa10 fs/bcachefs/journal_reclaim.c:553 __bch2_journal_reclaim+0x71c/0x1024 fs/bcachefs/journal_reclaim.c:685 bch2_journal_reclaim_thread+0x154/0x4b8 fs/bcachefs/journal_reclaim.c:727 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: 4 locks held by kworker/u8:1/13: #0: ffff0000c1819948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3222 #1: ffff800093f87c20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3222 #2: ffff800091f026d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x13c/0x9b4 net/core/net_namespace.c:594 #3: ffff800091f0e928 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79 3 locks held by kworker/1:1/27: #0: ffff0000c0028948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3222 #1: ffff800094fe7c20 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3222 #2: ffff800091f0e928 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79 1 lock held by khungtaskd/31: #0: ffff80008f2d7a60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:328 12 locks held by kworker/u9:0/53: #0: ffff0000ea07b148 ((wq_completion)bcachefs){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3222 #1: ffff800095677c20 ((work_completion)(&wp->index_update_work)){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3222 #2: ffff0000f0e042d8 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire+0x18/0x54 include/linux/srcu.h:115 #3: ffff0000eb3fa070 (&dev->mutex){....}-{3:3}, at: six_relock_type+0x24/0x5c fs/bcachefs/six.h:288 #4: ffff0000eb3fa070 (&dev->mutex){....}-{3:3}, at: btree_node_lock_increment fs/bcachefs/btree_locking.h:248 [inline] #4: ffff0000eb3fa070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x6a0/0xa94 fs/bcachefs/btree_locking.c:509 #5: ffff0000ec3cb1e8 (&dev->mutex){....}-{3:3}, at: six_relock_type+0x24/0x5c fs/bcachefs/six.h:288 #6: ffff0000ec14a1c8 (&dev->mutex){....}-{3:3}, at: six_relock_type+0x24/0x5c fs/bcachefs/six.h:288 #7: ffff0000d9dc5070 (&dev->mutex){....}-{3:3}, at: six_relock_type+0x24/0x5c fs/bcachefs/six.h:288 #8: ffff0000eb3fa070 (&dev->mutex){....}-{3:3}, at: btree_path_copy fs/bcachefs/btree_iter.c:1228 [inline] #8: ffff0000eb3fa070 (&dev->mutex){....}-{3:3}, at: btree_path_clone fs/bcachefs/btree_iter.c:1236 [inline] #8: ffff0000eb3fa070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_path_make_mut+0x1b8/0x508 fs/bcachefs/btree_iter.c:1249 #9: ffff0000d9dc5870 (&dev->mutex){....}-{3:3}, at: six_trylock_type+0x1c/0x4c fs/bcachefs/six.h:206 #10: ffff0000d9dc1870 (&dev->mutex){....}-{3:3}, at: six_trylock_type+0x1c/0x4c fs/bcachefs/six.h:206 #11: ffff0000d9dc1870 (&dev->mutex){....}-{3:3}, at: btree_node_lock_increment+0x2bc/0x2d0 fs/bcachefs/btree_locking.h:248 3 locks held by kworker/u8:8/589: #0: ffff0000d13fb948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3222 #1: ffff800099427c20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3222 #2: ffff800091f0e928 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79 5 locks held by kworker/u8:9/615: #0: ffff0000ea745948 ((wq_completion)btree_update){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3222 #1: ffff800099867c20 ((work_completion)(&c->btree_interior_update_work)){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3222 #2: ffff0000f0e042d8 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire+0x18/0x54 include/linux/srcu.h:115 #3: ffff0000ec3cb498 (&dev->mutex){....}-{3:3}, at: six_relock_type+0x24/0x5c fs/bcachefs/six.h:288 #4: ffff0000d9dc5870 (&dev->mutex){....}-{3:3}, at: flush_new_cached_update+0xcc/0x8d4 fs/bcachefs/btree_update.c:356 1 lock held by dhcpcd/5956: #0: ffff800091f0e928 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79 2 locks held by getty/6051: #0: ffff0000d76800a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff800097eeb2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211 3 locks held by kworker/1:6/6338: #0: ffff0000c0028948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3222 #1: ffff8000a0107c20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3222 #2: ffff800091f0e928 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79 4 locks held by syz.4.217/7413: 4 locks held by bch-reclaim/loo/7428: #0: ffff0000f0e4afe8 (&j->reclaim_lock){+.+.}-{3:3}, at: bch2_journal_reclaim_thread+0x144/0x4b8 fs/bcachefs/journal_reclaim.c:726 #1: ffff0000f0e042d8 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire+0x18/0x54 include/linux/srcu.h:115 #2: ffff0000f0e042d8 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire+0x18/0x54 include/linux/srcu.h:115 #3: ffff0000ec3cb1e8 (&dev->mutex){....}-{3:3}, at: bch2_trans_iter_init fs/bcachefs/btree_iter.h:503 [inline] #3: ffff0000ec3cb1e8 (&dev->mutex){....}-{3:3}, at: btree_key_cache_flush_pos+0x1e4/0x880 fs/bcachefs/btree_key_cache.c:616 4 locks held by syz-executor/9566: #0: ffff0000d7d60420 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2854 [inline] #0: ffff0000d7d60420 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x2e8/0xc38 fs/read_write.c:586 #1: ffff0000cc270488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1c8/0x48c fs/kernfs/file.c:325 #2: ffff0000cca3a1e8 (kn->active#45){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1e4/0x48c fs/kernfs/file.c:326 #3: ffff8000910e2c08 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xec/0x39c drivers/net/netdevsim/bus.c:216 1 lock held by syz-executor/9570: #0: ffff800091f0e928 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffff800091f0e928 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x704/0xe64 net/core/rtnetlink.c:6632 4 locks held by udevd/9571: #0: ffff0000d4a13b08 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xac/0xc44 fs/seq_file.c:182 #1: ffff0000e13d8888 (&of->mutex#2){+.+.}-{3:3}, at: kernfs_seq_start+0x58/0x384 fs/kernfs/file.c:154 #2: ffff0000dc98d698 (kn->active#4){++++}-{0:0}, at: kernfs_seq_start+0x74/0x384 fs/kernfs/file.c:155 #3: ffff0000f8a790e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #3: ffff0000f8a790e8 (&dev->mutex){....}-{3:3}, at: uevent_show+0x17c/0x33c drivers/base/core.c:2743 4 locks held by syz-executor/9573: #0: ffff0000d7d60420 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2854 [inline] #0: ffff0000d7d60420 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x2e8/0xc38 fs/read_write.c:586 #1: ffff0000d4f2d488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1c8/0x48c fs/kernfs/file.c:325 #2: ffff0000cca3a1e8 (kn->active#45){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1e4/0x48c fs/kernfs/file.c:326 #3: ffff8000910e2c08 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xec/0x39c drivers/net/netdevsim/bus.c:216 7 locks held by syz-executor/9579: #0: ffff0000d7d60420 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2854 [inline] #0: ffff0000d7d60420 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x2e8/0xc38 fs/read_write.c:586 #1: ffff0000c42d3c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1c8/0x48c fs/kernfs/file.c:325 #2: ffff0000cca3a0f8 (kn->active#46){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1e4/0x48c fs/kernfs/file.c:326 #3: ffff8000910e2c08 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: new_device_store+0x170/0x704 drivers/net/netdevsim/bus.c:166 #4: ffff0000f8a790e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #4: ffff0000f8a790e8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x90/0x434 drivers/base/dd.c:1003 #5: ffff0000f8a7a250 (&devlink->lock_key#19){+.+.}-{3:3}, at: devl_lock+0x24/0x34 net/devlink/core.c:276 #6: ffff800091f0e928 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79 1 lock held by syz-executor/9581: #0: ffff800091f0e928 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffff800091f0e928 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x704/0xe64 net/core/rtnetlink.c:6632 =============================================