INFO: task kworker/1:1H:2136 blocked for more than 145 seconds.
Not tainted 6.9.0-syzkaller-08414-g7ee332c9f12b #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:1H state:D stack:25664 pid:2136 tgid:2136 ppid:2 flags:0x00004000
Workqueue: bcachefs_btree_io btree_node_write_work
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6838
six_lock_slowpath+0x660/0x16a0 fs/bcachefs/six.c:493
six_lock_ip_waiter+0x117/0x160 fs/bcachefs/six.c:550
__btree_node_lock_nopath fs/bcachefs/btree_locking.h:208 [inline]
__bch2_btree_node_lock_write+0x11c/0x3c0 fs/bcachefs/btree_locking.c:429
__btree_node_lock_write fs/bcachefs/btree_locking.h:298 [inline]
bch2_btree_node_lock_write_nofail+0x24c/0x440 fs/bcachefs/btree_locking.c:443
__bch2_btree_node_update_key fs/bcachefs/btree_update_interior.c:2390 [inline]
bch2_btree_node_update_key+0x16ff/0x3260 fs/bcachefs/btree_update_interior.c:2450
bch2_btree_node_update_key_get_iter+0x87a/0xab0 fs/bcachefs/btree_update_interior.c:2494
btree_node_write_work+0x8a2/0xe10 fs/bcachefs/btree_io.c:1870
process_one_work kernel/workqueue.c:3231 [inline]
process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312
worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Showing all locks held in the system:
2 locks held by kworker/u8:0/11:
1 lock held by khungtaskd/30:
#0: ffffffff8e3343a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#0: ffffffff8e3343a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#0: ffffffff8e3343a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
3 locks held by kworker/1:2/1787:
#0: ffff88801828f948 ((wq_completion)pm){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff88801828f948 ((wq_completion)pm){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc90004e97d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc90004e97d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2: ffff8880239cf190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
#2: ffff8880239cf190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1fe/0x5150 drivers/usb/core/hub.c:5850
4 locks held by kworker/1:1H/2136:
#0: ffff88807a831d48 ((wq_completion)bcachefs_btree_io){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff88807a831d48 ((wq_completion)bcachefs_btree_io){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc9000729fd00 ((work_completion)(&wb->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc9000729fd00 ((work_completion)(&wb->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2: ffff888069784250 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:116 [inline]
#2: ffff888069784250 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:215 [inline]
#2: ffff888069784250 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x911/0xd30 fs/bcachefs/btree_iter.c:3069
#3: ffff888011fb0070 (&dev->mutex){....}-{3:3}, at: six_trylock_type fs/bcachefs/six.h:207 [inline]
#3: ffff888011fb0070 (&dev->mutex){....}-{3:3}, at: btree_node_lock fs/bcachefs/btree_locking.h:266 [inline]
#3: ffff888011fb0070 (&dev->mutex){....}-{3:3}, at: btree_path_lock_root fs/bcachefs/btree_iter.c:760 [inline]
#3: ffff888011fb0070 (&dev->mutex){....}-{3:3}, at: bch2_btree_path_traverse_one+0xa85/0x3250 fs/bcachefs/btree_iter.c:1178
5 locks held by kworker/u8:6/2782:
#0: ffff888015ecd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff888015ecd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc90009b3fd00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc90009b3fd00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2: ffffffff8f5d3c50 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:594
#3: ffffffff8f5e0608 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 net/core/dev.c:11745
#4: ffffffff8e339778 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
#4: ffffffff8e339778 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:939
3 locks held by kworker/u8:14/2932:
#0: ffff888029bdc948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff888029bdc948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc90009f1fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc90009f1fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2: ffffffff8f5e0608 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4193
2 locks held by dhcpcd/4760:
#0: ffff88802ba7e678 (nlk_cb_mutex-ROUTE){+.+.}-{3:3}, at: netlink_dump+0xcb/0xe50 net/netlink/af_netlink.c:2277
#1: ffffffff8f5e0608 (rtnl_mutex){+.+.}-{3:3}, at: netlink_dump+0x5d3/0xe50 net/netlink/af_netlink.c:2336
2 locks held by getty/4854:
#0: ffff88802a33f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc9000312b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201
5 locks held by kworker/u9:9/5137:
#0: ffff88805baf2148 ((wq_completion)bcachefs){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff88805baf2148 ((wq_completion)bcachefs){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc9000467fd00 ((work_completion)(&wp->index_update_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc9000467fd00 ((work_completion)(&wp->index_update_work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2: ffff888069784250 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:116 [inline]
#2: ffff888069784250 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:215 [inline]
#2: ffff888069784250 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x911/0xd30 fs/bcachefs/btree_iter.c:3069
#3: ffff88805c159070 (&dev->mutex){....}-{3:3}, at: six_trylock_type fs/bcachefs/six.h:207 [inline]
#3: ffff88805c159070 (&dev->mutex){....}-{3:3}, at: btree_node_lock fs/bcachefs/btree_locking.h:266 [inline]
#3: ffff88805c159070 (&dev->mutex){....}-{3:3}, at: btree_path_lock_root fs/bcachefs/btree_iter.c:760 [inline]
#3: ffff88805c159070 (&dev->mutex){....}-{3:3}, at: bch2_btree_path_traverse_one+0xa85/0x3250 fs/bcachefs/btree_iter.c:1178
#4: ffff888011fb0070 (&dev->mutex){....}-{3:3}, at: bch2_trans_iter_init fs/bcachefs/btree_iter.h:487 [inline]
#4: ffff888011fb0070 (&dev->mutex){....}-{3:3}, at: bch2_write_index_default fs/bcachefs/io_write.c:369 [inline]
#4: ffff888011fb0070 (&dev->mutex){....}-{3:3}, at: __bch2_write_index+0xbc3/0x2190 fs/bcachefs/io_write.c:528
5 locks held by kworker/0:3/5182:
#0: ffff888018295948 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff888018295948 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc90003207d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc90003207d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2: ffff888023a36190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
#2: ffff888023a36190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1fe/0x5150 drivers/usb/core/hub.c:5850
#3:
ffff88802d2a9190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
ffff88802d2a9190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x8e/0x520 drivers/base/dd.c:1003
#4: ffff888023157098 (&hub->status_mutex){+.+.}-{3:3}, at: hub_ext_port_status+0x57/0x840 drivers/usb/core/hub.c:620
3 locks held by kworker/1:5/5186:
#0: ffff888015078948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff888015078948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc900031c7d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc900031c7d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2: ffffffff8f5e0608 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276
4 locks held by syz-executor.0/6195:
1 lock held by syz-executor.3/6876:
#0: ffffffff8e339778 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
#0: ffffffff8e339778 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:939
1 lock held by syz-executor.4/7848:
#0: ffffffff8f5e0608 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f5e0608 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x10d0 net/core/rtnetlink.c:6592
7 locks held by syz-executor.5/7883:
#0: ffff88807f0e2420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2871 [inline]
#0: ffff88807f0e2420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc50 fs/read_write.c:586
#1: ffff88807a830088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 fs/kernfs/file.c:325
#2: ffff888021c4c1e8 (kn->active#50){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 fs/kernfs/file.c:326
#3: ffffffff8eeedf68 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
#4: ffff88805b2830e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
#4: ffff88805b2830e8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1093 [inline]
#4: ffff88805b2830e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xce/0x7c0 drivers/base/dd.c:1290
#5: ffff88805b284250 (&devlink->lock_key#3){+.+.}-{3:3}, at: nsim_drv_remove+0x50/0x160 drivers/net/netdevsim/dev.c:1672
#6: ffffffff8f5e0608 (rtnl_mutex){+.+.}-{3:3}, at: nsim_destroy+0x71/0x5c0 drivers/net/netdevsim/netdev.c:772
1 lock held by syz-executor.2/7995:
#0: ffffffff8f5e0608 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f5e0608 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x10d0 net/core/rtnetlink.c:6592
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.9.0-syzkaller-08414-g7ee332c9f12b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xfde/0x1020 kernel/hung_task.c:380
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 12 Comm: kworker/u8:1 Not tainted 6.9.0-syzkaller-08414-g7ee332c9f12b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:lock_release+0x4/0x9f0 kernel/locking/lockdep.c:5762
Code: f6 ff ff 48 c7 c7 c0 0e ad 8f e8 d7 a7 88 00 e9 26 f6 ff ff 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec 00 01
RSP: 0018:ffffc90000117898 EFLAGS: 00000096
RAX: f3f3f300f1f1f1f1 RBX: ffffffff94a4d838 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff84b7bb81 RDI: ffffffff94a4d850
RBP: ffffc90000117930 R08: 0000000000000003 R09: fffff52000022f04
R10: dffffc0000000000 R11: fffff52000022f04 R12: dffffc0000000000
R13: 1ffff92000022f14 R14: ffffc900001178c0 R15: 0000000000000246
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e722000 CR3: 000000000e132000 CR4: 0000000000350ef0
Call Trace:
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline]
_raw_spin_unlock_irqrestore+0x79/0x140 kernel/locking/spinlock.c:194
__debug_check_no_obj_freed lib/debugobjects.c:998 [inline]
debug_check_no_obj_freed+0x561/0x580 lib/debugobjects.c:1019
slab_free_hook mm/slub.c:2088 [inline]
slab_free mm/slub.c:4353 [inline]
kmem_cache_free+0xd5/0x2d0 mm/slub.c:4417
kfree_skb include/linux/skbuff.h:1257 [inline]
ieee80211_iface_work+0x270/0xf10 net/mac80211/iface.c:1661
cfg80211_wiphy_work+0x223/0x260 net/wireless/core.c:437
process_one_work kernel/workqueue.c:3231 [inline]
process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312
worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244