INFO: task syz.4.209:8056 blocked for more than 151 seconds.
      Not tainted 6.16.0-rc5-syzkaller-gec4801305969 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.209       state:D stack:0     pid:8056  tgid:8053  ppid:6535   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:
1 lock held by kthreadd/2:
3 locks held by kworker/u8:0/12:
3 locks held by kworker/u8:1/14:
 #0: ffff0000c0031948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212
 #1: ffff800097aa7bc0 ((crda_timeout).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 kworker/1:0/24:
2 locks held by kworker/1:1/26:
1 lock held by khungtaskd/32:
 #0: ffff80008f8599c0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330
6 locks held by kworker/u8:2/41:
3 locks held by kworker/u8:3/42:
3 locks held by kworker/u8:4/119:
3 locks held by kworker/u8:5/199:
3 locks held by kworker/u8:6/297:
3 locks held by kworker/u8:7/785:
3 locks held by kworker/u8:8/1605:
3 locks held by kworker/u8:9/2150:
3 locks held by kworker/R-ipv6_/4172:
 #0: ffff0000d232c148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212
 #1: ffff80009e467ba0 ((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/R-bat_e/4253:
3 locks held by kworker/u8:10/4548:
1 lock held by klogd/6131:
1 lock held by udevd/6142:
1 lock held by crond/6271:
2 locks held by getty/6293:
 #0: ffff0000cca7b0a0 (&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 udevd/6517:
1 lock held by udevd/6519:
4 locks held by syz-executor/6525:
2 locks held by kworker/1:3/6526:
2 locks held by syz-executor/6538:
1 lock held by kworker/R-wg-cr/6570:
 #0: ffff80008f701328 (wq_pool_attach_mutex){+.+.}-{4:4}
, at: worker_attach_to_pool+0x40/0x348 kernel/workqueue.c:2678
2 locks held by kworker/1:4/6587:
4 locks held by kworker/0:6/6632:
 #0: ffff0000c0028d48 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212
 #1: ffff80009d367bc0 (reg_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: ffff0000d3840768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: class_wiphy_constructor include/net/cfg80211.h:6062 [inline]
 #3: ffff0000d3840768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: reg_process_self_managed_hints+0xc4/0x1c0 net/wireless/reg.c:3209
1 lock held by udevd/6680:
 #0: ffff0000c1496f30 (&sb->s_type->i_mutex_key#8){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:884 [inline]
 #0: ffff0000c1496f30 (&sb->s_type->i_mutex_key#8){++++}-{4:4}, at: blkdev_read_iter+0x2a0/0x3dc block/fops.c:832
2 locks held by syz-executor/7241:
3 locks held by syz-executor/7363:
1 lock held by syz.4.209/8056:
 #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
1 lock held by sed/8086:
 #0: ffff0000d7880428 (sb_writers#3){.+.+}-{0:0}, at: file_accessed include/linux/fs.h:2652 [inline]
 #0: ffff0000d7880428 (sb_writers#3){.+.+}-{0:0}, at: filemap_read+0xd64/0xea8 mm/filemap.c:2783
3 locks held by kworker/u8:11/8087:
3 locks held by kworker/u8:12/8088:
 #0: ffff0000c0031948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212
 #1: ffff80009e087bc0 ((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
1 lock held by syz-executor/8091:

=============================================