INFO: task syz.5.334:8655 blocked for more than 145 seconds. Not tainted 6.16.0-rc5-syzkaller-gec4801305969 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.5.334 state:D stack:0 pid:8655 tgid:8654 ppid:7280 task_flags:0x400140 flags:0x00000011 Call trace: __switch_to+0x414/0x834 arch/arm64/kernel/process.c:742 (T) context_switch kernel/sched/core.c:5401 [inline] __schedule+0x1414/0x2a28 kernel/sched/core.c:6790 __schedule_loop kernel/sched/core.c:6868 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6883 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6940 __mutex_lock_common+0xbd0/0x2190 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799 bio_find_or_create_slab block/bio.c:122 [inline] bioset_init+0x1d0/0x654 block/bio.c:1799 bch2_fs_alloc fs/bcachefs/super.c:982 [inline] bch2_fs_open+0x1668/0x2010 fs/bcachefs/super.c:2433 bch2_fs_get_tree+0x350/0x107c fs/bcachefs/fs.c:2472 vfs_get_tree+0x90/0x28c fs/super.c:1804 do_new_mount+0x228/0x814 fs/namespace.c:3902 path_mount+0x5b4/0xde0 fs/namespace.c:4226 do_mount fs/namespace.c:4239 [inline] __do_sys_mount fs/namespace.c:4450 [inline] __se_sys_mount fs/namespace.c:4427 [inline] __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4427 __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+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 Showing all locks held in the system: 2 locks held by kworker/0:1/11: 4 locks held by kworker/u8:0/12: #0: ffff0000c0031948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212 #1: ffff800097a87bc0 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212 #2: ffff8000928b6568 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 #3: ffff0000d0140768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: class_wiphy_constructor include/net/cfg80211.h:6062 [inline] #3: ffff0000d0140768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: reg_leave_invalid_chans net/wireless/reg.c:2471 [inline] #3: ffff0000d0140768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: reg_check_chans_work+0x11c/0xd88 net/wireless/reg.c:2486 3 locks held by kworker/u8:1/15: 1 lock held by khungtaskd/32: #0: ffff80008f8599c0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330 2 locks held by kworker/u8:2/41: 2 locks held by kswapd0/74: 3 locks held by kworker/u8:5/221: 3 locks held by kworker/u8:6/264: 3 locks held by kworker/u8:7/303: #0: ffff0000d2225948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212 #1: ffff80009c207bc0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212 #2: ffff8000928b6568 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 4 locks held by kworker/u8:8/359: #0: ffff0000c18a2148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212 #1: ffff80009c197bc0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212 #2: ffff8000928a99d0 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xf4/0x6c0 net/core/net_namespace.c:662 #3: ffff8000928b6568 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 3 locks held by kworker/u8:10/605: 4 locks held by kworker/u8:12/676: 3 locks held by kworker/u8:13/707: 3 locks held by kworker/1:2/3923: #0: ffff0000c0028d48 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212 #1: ffff8000a2847bc0 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212 #2: ffff8000928b6568 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 2 locks held by udevd/6146: 1 lock held by dhcpcd/6201: #0: ffff8000928b6568 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 1 lock held by crond/6275: 2 locks held by getty/6304: #0: ffff0000d2a250a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80009ba2e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa4 drivers/tty/n_tty.c:2222 1 lock held by syz-executor/6519: 1 lock held by syz-executor/6532: 2 locks held by kworker/u8:16/7070: 2 locks held by kworker/u8:17/7071: 3 locks held by kworker/u8:18/7072: 3 locks held by kworker/u8:20/7075: 3 locks held by kworker/u8:21/7078: 3 locks held by syz-executor/7447: 3 locks held by udevd/7528: 3 locks held by udevd/7533: 1 lock held by syz.5.334/8655: #0: ffff80008ff8c068 (bio_slab_lock){+.+.}-{4:4}, at: bio_find_or_create_slab block/bio.c:122 [inline] #0: ffff80008ff8c068 (bio_slab_lock){+.+.}-{4:4}, at: bioset_init+0x1d0/0x654 block/bio.c:1799 2 locks held by syz-executor/8683: #0: ffff80008f68f450 (&ops->srcu#2){.+.+}-{0:0}, at: srcu_lock_acquire+0x18/0x54 include/linux/srcu.h:160 #1: ffff8000928b6568 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline] #1: ffff8000928b6568 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline] #1: ffff8000928b6568 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x710/0x15dc net/core/rtnetlink.c:4054 =============================================