INFO: task syz-executor:6386 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-executor state:D stack:0 pid:6386 tgid:6386 ppid:1 flags:0x00000001
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
bit_wait+0x1c/0xac kernel/sched/wait_bit.c:199
__wait_on_bit kernel/sched/wait_bit.c:49 [inline]
out_of_line_wait_on_bit+0x208/0x334 kernel/sched/wait_bit.c:64
wait_on_bit include/linux/wait_bit.h:76 [inline]
gfs2_glock_wait+0xb8/0x298 fs/gfs2/glock.c:1394
gfs2_glock_nq+0xcc8/0x169c fs/gfs2/glock.c:1656
gfs2_glock_nq_init fs/gfs2/glock.h:238 [inline]
__gfs2_lookup+0x124/0x270 fs/gfs2/inode.c:905
gfs2_lookup+0x2c/0x3c fs/gfs2/inode.c:930
__lookup_slow+0x250/0x374 fs/namei.c:1692
lookup_slow+0x60/0x84 fs/namei.c:1709
walk_component+0x280/0x36c fs/namei.c:2013
lookup_last fs/namei.c:2516 [inline]
path_lookupat+0x13c/0x3d0 fs/namei.c:2540
filename_lookup+0x1d4/0x4e0 fs/namei.c:2569
user_path_at_empty+0x5c/0x84 fs/namei.c:2976
user_path_at include/linux/namei.h:58 [inline]
ksys_umount fs/namespace.c:1916 [inline]
__do_sys_umount fs/namespace.c:1924 [inline]
__se_sys_umount fs/namespace.c:1922 [inline]
__arm64_sys_umount+0xf8/0x17c fs/namespace.c:1922
__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
Showing all locks held in the system:
3 locks held by kworker/0:1/9:
#0: ffff0000c0028948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3222
#1: ffff800094177c20 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3222
#2: ffff0000e2bcf240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x270/0x32bc drivers/net/netdevsim/fib.c:1489
1 lock held by khungtaskd/31:
#0: ffff80008f4b7be0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:328
7 locks held by kworker/u8:2/42:
#0: ffff0000c1881948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3222
#1: ffff800094887c20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3222
#2: ffff800092137090 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x13c/0x9b4 net/core/net_namespace.c:594
#3: ffff0000ef9720e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#3: ffff0000ef9720e8 (&dev->mutex){....}-{3:3}, at: devl_dev_lock net/devlink/devl_internal.h:108 [inline]
#3: ffff0000ef9720e8 (&dev->mutex){....}-{3:3}, at: devlink_pernet_pre_exit+0x114/0x418 net/devlink/core.c:506
#4: ffff0000e5a54250 (&devlink->lock_key#15){+.+.}-{3:3}, at: devl_lock net/devlink/core.c:276 [inline]
#4: ffff0000e5a54250 (&devlink->lock_key#15){+.+.}-{3:3}, at: devl_dev_lock net/devlink/devl_internal.h:109 [inline]
#4: ffff0000e5a54250 (&devlink->lock_key#15){+.+.}-{3:3}, at: devlink_pernet_pre_exit+0x124/0x418 net/devlink/core.c:506
#5: ffff8000921432e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
#6: ffff80008f4bcf38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
#6: ffff80008f4bcf38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x354/0x678 kernel/rcu/tree_exp.h:939
3 locks held by kworker/u8:4/212:
3 locks held by kworker/u8:7/591:
#0: ffff0000d1c35948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3222
#1: ffff800099827c20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3222
#2: ffff8000921432e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
2 locks held by udevd/5990:
2 locks held by dhcpcd/6044:
#0: ffff0000cdadd678 (nlk_cb_mutex-ROUTE){+.+.}-{3:3}, at: netlink_dump+0xc0/0xbf0 net/netlink/af_netlink.c:2277
#1: ffff8000921432e8 (rtnl_mutex){+.+.}-{3:3}, at: netlink_dump+0x48c/0xbf0 net/netlink/af_netlink.c:2336
2 locks held by getty/6136:
#0: ffff0000d2bb90a0 (&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
1 lock held by syz-executor/6386:
#0: ffff0000ef461c30 (&type->i_mutex_dir_key#13){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:801 [inline]
#0: ffff0000ef461c30 (&type->i_mutex_dir_key#13){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1708
3 locks held by kworker/0:3/6437:
#0: ffff0000c0028948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3222
#1: ffff80009a747c20 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3222
#2: ffff0000e2fca240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x270/0x32bc drivers/net/netdevsim/fib.c:1489
3 locks held by kworker/0:5/6447:
#0: ffff0000c0028948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3222
#1: ffff80009a6e7c20 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3222
#2: ffff0000d72e0240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x270/0x32bc drivers/net/netdevsim/fib.c:1489
1 lock held by syz-executor/7946:
#0: ffff8000921432e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffff8000921432e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x704/0xe64 net/core/rtnetlink.c:6632
7 locks held by syz-executor/7987:
#0: ffff0000d8bde420 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2854 [inline]
#0: ffff0000d8bde420 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x2e8/0xc38 fs/read_write.c:586
#1: ffff0000cc309c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1c8/0x48c fs/kernfs/file.c:325
#2: ffff0000ca289008 (kn->active#45){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1e4/0x48c fs/kernfs/file.c:326
#3: ffff8000912d2268 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xec/0x39c drivers/net/netdevsim/bus.c:216
#4: ffff0000ef23d0e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#4: ffff0000ef23d0e8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1093 [inline]
#4: ffff0000ef23d0e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xbc/0x698 drivers/base/dd.c:1290
#5: ffff0000ef23c250 (&devlink->lock_key#17){+.+.}-{3:3}, at: devl_lock+0x24/0x34 net/devlink/core.c:276
#6: ffff80008f4bce00 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x58/0x534 kernel/rcu/tree.c:4448
4 locks held by syz-executor/7991:
#0: ffff0000d8bde420 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2854 [inline]
#0: ffff0000d8bde420 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x2e8/0xc38 fs/read_write.c:586
#1: ffff0000cbd8fc88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1c8/0x48c fs/kernfs/file.c:325
#2: ffff0000ca289008 (kn->active#45){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1e4/0x48c fs/kernfs/file.c:326
#3: ffff8000912d2268 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xec/0x39c drivers/net/netdevsim/bus.c:216
2 locks held by syz.1.175/8091:
#0: ffff000103100988 (&c->sb_lock){+.+.}-{3:3}, at: bch2_fs_alloc+0xbd0/0x1c94 fs/bcachefs/super.c:825
#1: ffff000103104980 (&c->mark_lock){++++}-{0:0}, at: bch2_sb_replicas_to_cpu_replicas+0x18c/0x258 fs/bcachefs/replicas.c:726
2 locks held by syz.4.176/8094:
#0: ffff0000e8400988 (&c->sb_lock){+.+.}-{3:3}, at: bch2_fs_alloc+0xbd0/0x1c94 fs/bcachefs/super.c:825
#1: ffff0000e8404980 (&c->mark_lock){++++}-{0:0}, at: bch2_sb_replicas_to_cpu_replicas+0x18c/0x258 fs/bcachefs/replicas.c:726
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