INFO: task udevd:16248 blocked in I/O wait for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:23320 pid:16248 tgid:16248 ppid:5261   task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 __schedule+0x17b4/0x5680
 schedule+0x164/0x360
 io_schedule+0x7f/0xd0
 bit_wait_io+0x11/0xd0
 __wait_on_bit_lock+0xec/0x4e0
 out_of_line_wait_on_bit_lock+0x13b/0x190
 block_read_full_folio+0x38f/0x830
 filemap_read_folio+0x32f/0x3b0
 filemap_get_pages+0x1744/0x1ef0
 filemap_read+0x447/0x1230
 blkdev_read_iter+0x30a/0x440
 vfs_read+0x582/0xa70
 ksys_read+0x150/0x270
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8160f88b6a
RSP: 002b:00007ffe3c738a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8160f88b6a
RDX: 0000000000000400 RSI: 000055a358be4d38 RDI: 0000000000000009
RBP: 0000000000000400 R08: 000055a358be4d10 R09: 0000000000000008
R10: 0000000000000051 R11: 0000000000000246 R12: 000055a358be4d10
R13: 000055a358be4d28 R14: 000055a358c5fea8 R15: 000055a358c5fe50
 </TASK>
INFO: task syz.3.2028:20745 blocked in I/O wait for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.2028      state:D stack:20696 pid:20745 tgid:20743 ppid:17564  task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17b4/0x5680
 schedule+0x164/0x360
 io_schedule+0x7f/0xd0
 folio_wait_bit_common+0x6d8/0xbc0
 find_get_block_common+0x34f/0xe10
 bdev_getblk+0x53/0x6e0
 __ext4_get_inode_loc+0x7d8/0xfa0
 ext4_reserve_inode_write+0x18b/0x360
 __ext4_mark_inode_dirty+0x14b/0x710
 ext4_evict_inode+0x986/0x10e0
 evict+0x61e/0xb10
 ext4_orphan_cleanup+0xc38/0x1470
 ext4_fill_super+0x5a19/0x6330
 get_tree_bdev_flags+0x431/0x4f0
 vfs_get_tree+0x92/0x2a0
 do_new_mount+0x341/0xd30
 __se_sys_mount+0x31d/0x420
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb2eaf9e04a
RSP: 002b:00007fb2ebe08e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fb2ebe08ee0 RCX: 00007fb2eaf9e04a
RDX: 0000200000000300 RSI: 00002000000005c0 RDI: 00007fb2ebe08ea0
RBP: 0000200000000300 R08: 00007fb2ebe08ee0 R09: 0000000001818e58
R10: 0000000001818e58 R11: 0000000000000246 R12: 00002000000005c0
R13: 00007fb2ebe08ea0 R14: 000000000000063f R15: 00002000000003c0
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e95cce0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by kworker/u10:2/40:
 #0: ffff88823c63ae60 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x31/0x150
 #1: ffff88823c624588 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
3 locks held by kworker/u9:4/89:
 #0: ffff88812103ae60 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x31/0x150
 #1: ffff888121024588 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
 #2: ffff888121026118 (&base->lock){-.-.}-{2:2}, at: __mod_timer+0x1ae/0xf30
2 locks held by getty/5641:
 #0: ffff888112ee00a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000346b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13a0
3 locks held by kworker/u9:8/9737:
 #0: ffff888162a90940 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860
 #1: ffffc90007bafc40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860
 #2: ffff8881026ae0d8 (&type->s_umount_key#45){.+.+}-{4:4}, at: super_trylock_shared+0x20/0xf0
5 locks held by kworker/u9:9/14863:
 #0: ffff88812103ae60 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x31/0x150
 #1: ffff888121024588 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
 #2: ffff888121026118 (&base->lock){-.-.}-{2:2}, at: __mod_timer+0x1ae/0xf30
 #3: ffff888121028298 (hrtimer_bases.lock){-.-.}-{2:2}, at: hrtimer_start_range_ns+0xc3/0xed0
 #4: ffffffff8e95cce0 (rcu_read_lock){....}-{1:3}, at: unwind_next_frame+0xa6/0x2550
2 locks held by udevd/16248:
 #0: ffff888167c94160 (&sb->s_type->i_mutex_key#10){++++}-{4:4}, at: blkdev_read_iter+0x2f8/0x440
 #1: ffff888167c942f8 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x991/0x1ef0
2 locks held by syz.3.2028/20745:
 #0: ffff88816c1e00d8 (&type->s_umount_key#28/1){+.+.}-{4:4}, at: alloc_super+0x28c/0xab0
 #1: ffff88816c1e0600 (sb_internal){++++}-{0:0}, at: ext4_evict_inode+0x426/0x10e0
2 locks held by syz.4.2518/23947:
 #0: ffff88823c63ae60 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x31/0x150
 #1: ffff88823c624588 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
3 locks held by syz.6.2519/23949:
 #0: ffff88816c03ba68 (&fc->uapi_mutex){+.+.}-{4:4}, at: __se_sys_fsconfig+0x69d/0x820
 #1: ffff8881a820c0d8 (&type->s_umount_key#136/1){+.+.}-{4:4}, at: alloc_super+0x28c/0xab0
 #2: ffff8881a86ac088 (&client->mount_mutex){+.+.}-{4:4}, at: ceph_get_tree+0x889/0x19e0
2 locks held by udevadm/23967:

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 34 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150
 nmi_cpu_backtrace+0x274/0x2d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 sys_info+0x135/0x170
 watchdog+0xfd3/0x1030
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 23968 Comm: syz.4.2518 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:mark_lock+0x9f/0x190
Code: 8d 3d 75 8b 94 0e 48 c7 c6 b0 f2 0e 8e 67 48 0f b9 3a 90 31 c9 4c 89 fe 4c 89 f7 b8 01 00 00 00 85 69 60 74 10 5b 41 5c 41 5d <41> 5e 41 5f 5d e9 87 0a 17 0a cc 49 89 fe 49 89 f7 e8 5b 94 ff ff
RSP: 0000:ffffc9000b42fb40 EFLAGS: 00000006
RAX: 0000000000000001 RBX: ffff88816c95d880 RCX: ffffffff93ed20b0
RDX: 0000000000000008 RSI: ffff88816c95e410 RDI: ffff88816c95d880
RBP: 0000000000000200 R08: ffffffff82155e11 R09: ffff8881bc03f288
R10: 0000000000000000 R11: fffff52001685f98 R12: 00000000000005e8
R13: ffff88816c95e410 R14: ffff88816c95d880 R15: ffff88816c95e410
FS:  00007f5cb5dc26c0(0000) GS:ffff88818dc25000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5cab86b000 CR3: 00000001ba04a000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __lock_acquire+0x6b5/0x2cf0
 reacquire_held_locks+0x104/0x190
 lock_release+0x199/0x3c0
 lock_vma_under_rcu+0x3ec/0x500
 do_user_addr_fault+0x2d8/0x1340
 exc_page_fault+0x6a/0xc0
 asm_exc_page_fault+0x26/0x30
RIP: 0033:0x7f5cb4e53f0e
Code: c1 49 39 4f 08 72 54 8d 4d ff 85 ed 74 3b 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 39 f0 72 1b 4d 8b 07 49 89 c1 49 29 f1 <47> 0f b6 0c 08 45 84 c9 74 08 45 88 0c 00 49 8b 47 10 48 83 c0 01
RSP: 002b:00007f5cb5dc1470 EFLAGS: 00010206
RAX: 0000000000c6b001 RBX: 00007f5cb5dc1530 RCX: 00000000000000e2
RDX: 0000000000000015 RSI: 0000000000000001 RDI: 00007f5cb5dc15d0
RBP: 0000000000000102 R08: 00007f5caac00000 R09: 0000000000c6b000
R10: 0000000000000000 R11: 00007f5cb5dc1540 R12: 0000000000000001
R13: 00007f5cb5052900 R14: 0000000000000000 R15: 00007f5cb5dc15d0
 </TASK>
