INFO: task udevd:22490 blocked for more than 143 seconds.
Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:0 pid:22490 ppid:2604 flags:0x00000000
Call trace:
__switch_to+0x180/0x298 arch/arm64/kernel/process.c:555
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x408/0x594 kernel/sched/core.c:6521
schedule+0x64/0xa4 kernel/sched/core.c:6597
schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6656
__mutex_lock_common+0x788/0xca8 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799
blkdev_get_by_dev+0xfc/0x2fc block/bdev.c:813
blkdev_open+0x84/0xd8 block/fops.c:485
do_dentry_open+0x364/0x748 fs/open.c:882
vfs_open+0x38/0x48 fs/open.c:1013
do_open fs/namei.c:3557 [inline]
path_openat+0xe34/0x11c4 fs/namei.c:3714
do_filp_open+0xdc/0x1b8 fs/namei.c:3741
do_sys_openat2+0xb8/0x22c fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_openat fs/open.c:1342 [inline]
__se_sys_openat fs/open.c:1337 [inline]
__arm64_sys_openat+0xb0/0xe0 fs/open.c:1337
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197
el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584
INFO: task syz-executor.5:22604 blocked for more than 143 seconds.
Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:0 pid:22604 ppid:3119 flags:0x00000009
Call trace:
__switch_to+0x180/0x298 arch/arm64/kernel/process.c:555
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x408/0x594 kernel/sched/core.c:6521
schedule+0x64/0xa4 kernel/sched/core.c:6597
io_schedule+0x38/0xbc kernel/sched/core.c:8741
folio_wait_bit_common+0x430/0x97c mm/filemap.c:1296
folio_put_wait_locked mm/filemap.c:1465 [inline]
do_read_cache_folio+0x78/0x588 mm/filemap.c:3516
read_cache_folio+0x40/0x54 mm/filemap.c:3566
read_mapping_folio include/linux/pagemap.h:762 [inline]
read_part_sector+0x60/0x1d4 block/partitions/core.c:717
adfspart_check_POWERTEC+0x4c/0x360 block/partitions/acorn.c:454
check_partition block/partitions/core.c:146 [inline]
blk_add_partitions block/partitions/core.c:602 [inline]
bdev_disk_changed+0x364/0x66c block/partitions/core.c:688
blkdev_get_whole+0x1b0/0x208 block/bdev.c:685
blkdev_get_by_dev+0x178/0x2fc block/bdev.c:822
blkdev_open+0x84/0xd8 block/fops.c:485
do_dentry_open+0x364/0x748 fs/open.c:882
vfs_open+0x38/0x48 fs/open.c:1013
do_open fs/namei.c:3557 [inline]
path_openat+0xe34/0x11c4 fs/namei.c:3714
do_filp_open+0xdc/0x1b8 fs/namei.c:3741
do_sys_openat2+0xb8/0x22c fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_openat fs/open.c:1342 [inline]
__se_sys_openat fs/open.c:1337 [inline]
__arm64_sys_openat+0xb0/0xe0 fs/open.c:1337
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197
el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584
INFO: task syz-executor.5:22622 blocked for more than 143 seconds.
Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:0 pid:22622 ppid:3119 flags:0x00000009
Call trace:
__switch_to+0x180/0x298 arch/arm64/kernel/process.c:555
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x408/0x594 kernel/sched/core.c:6521
schedule+0x64/0xa4 kernel/sched/core.c:6597
schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6656
__mutex_lock_common+0x788/0xca8 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799
nbd_start_device_ioctl+0x1f0/0x2b8 drivers/block/nbd.c:1420
__nbd_ioctl+0x16c/0x334 drivers/block/nbd.c:1481
nbd_ioctl+0xec/0x13c drivers/block/nbd.c:1521
blkdev_ioctl+0x24c/0x6d8 block/ioctl.c:614
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__arm64_sys_ioctl+0xd0/0x140 fs/ioctl.c:856
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197
el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584
INFO: task syz-executor.5:22633 blocked for more than 143 seconds.
Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:0 pid:22633 ppid:3119 flags:0x00000001
Call trace:
__switch_to+0x180/0x298 arch/arm64/kernel/process.c:555
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x408/0x594 kernel/sched/core.c:6521
schedule+0x64/0xa4 kernel/sched/core.c:6597
blk_mq_freeze_queue_wait+0x94/0xf4 block/blk-mq.c:180
blk_freeze_queue+0x94/0xa8 block/blk-mq.c:207
blk_mq_freeze_queue+0x20/0x30 block/blk-mq.c:216
nbd_add_socket+0x78/0x27c drivers/block/nbd.c:1121
__nbd_ioctl+0x80/0x334 drivers/block/nbd.c:1464
nbd_ioctl+0xec/0x13c drivers/block/nbd.c:1521
blkdev_ioctl+0x24c/0x6d8 block/ioctl.c:614
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__arm64_sys_ioctl+0xd0/0x140 fs/ioctl.c:856
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197
el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584
INFO: task syz-executor.5:22634 blocked for more than 143 seconds.
Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:0 pid:22634 ppid:3119 flags:0x00000001
Call trace:
__switch_to+0x180/0x298 arch/arm64/kernel/process.c:555
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x408/0x594 kernel/sched/core.c:6521
schedule+0x64/0xa4 kernel/sched/core.c:6597
schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6656
__mutex_lock_common+0x788/0xca8 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799
nbd_ioctl+0x70/0x13c drivers/block/nbd.c:1514
blkdev_ioctl+0x24c/0x6d8 block/ioctl.c:614
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__arm64_sys_ioctl+0xd0/0x140 fs/ioctl.c:856
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197
el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584
INFO: task syz-executor.5:22637 blocked for more than 143 seconds.
Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:0 pid:22637 ppid:3119 flags:0x00000001
Call trace:
__switch_to+0x180/0x298 arch/arm64/kernel/process.c:555
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x408/0x594 kernel/sched/core.c:6521
schedule+0x64/0xa4 kernel/sched/core.c:6597
schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6656
__mutex_lock_common+0x788/0xca8 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799
nbd_ioctl+0x70/0x13c drivers/block/nbd.c:1514
blkdev_ioctl+0x24c/0x6d8 block/ioctl.c:614
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__arm64_sys_ioctl+0xd0/0x140 fs/ioctl.c:856
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197
el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/11:
#0: ffff80000d4a4768 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/12:
#0: ffff80000d4a4db8 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/27:
#0: ffff80000d4a4640 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:303
2 locks held by getty/2755:
#0: ffff0000c7d43098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x28/0x58 drivers/tty/tty_ldisc.c:244
#1: ffff80000f6be2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x19c/0x89c drivers/tty/n_tty.c:2177
3 locks held by kworker/u4:39/9843:
1 lock held by udevd/22490:
#0: ffff0000c487e4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xfc/0x2fc block/bdev.c:813
1 lock held by udevd/22544:
#0: ffff0000c49c6cc8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xfc/0x2fc block/bdev.c:813
1 lock held by syz-executor.5/22604:
#0: ffff0000c487e4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xfc/0x2fc block/bdev.c:813
1 lock held by syz-executor.5/22622:
#0: ffff0000c5eae598 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_start_device_ioctl+0x1f0/0x2b8 drivers/block/nbd.c:1420
1 lock held by syz-executor.5/22633:
#0: ffff0000c5eae598 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x70/0x13c drivers/block/nbd.c:1514
1 lock held by syz-executor.5/22634:
#0: ffff0000c5eae598 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x70/0x13c drivers/block/nbd.c:1514
1 lock held by syz-executor.5/22637:
#0: ffff0000c5eae598 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x70/0x13c drivers/block/nbd.c:1514
1 lock held by syz-executor.5/22803:
#0: ffff0000c487e4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xfc/0x2fc block/bdev.c:813
1 lock held by syz-executor.5/22805:
#0: ffff0000c487e4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xfc/0x2fc block/bdev.c:813
1 lock held by syz-executor.2/22820:
#0: ffff0000c49c6cc8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xfc/0x2fc block/bdev.c:813
1 lock held by syz-executor.2/22832:
#0: ffff0000c5ea5598 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_start_device_ioctl+0x1f0/0x2b8 drivers/block/nbd.c:1420
1 lock held by syz-executor.2/22843:
#0: ffff0000c5ea5598 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x70/0x13c drivers/block/nbd.c:1514
1 lock held by syz-executor.2/22855:
#0: ffff0000c5ea5598 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x70/0x13c drivers/block/nbd.c:1514
1 lock held by syz-executor.2/22858:
#0: ffff0000c5ea5598 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x70/0x13c drivers/block/nbd.c:1514
1 lock held by syz-executor.5/22882:
#0: ffff0000c487e4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xfc/0x2fc block/bdev.c:813
1 lock held by syz-executor.5/22883:
#0: ffff0000c487e4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xfc/0x2fc block/bdev.c:813
=============================================