INFO: task kworker/1:1:23 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:1     state:D stack:24736 pid:   23 ppid:     2 flags:0x00004000
Workqueue: gfs_recovery gfs2_recover_func
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5049 [inline]
 __schedule+0x11bb/0x4390 kernel/sched/core.c:6395
 schedule+0x11b/0x1e0 kernel/sched/core.c:6478
 io_schedule+0x7c/0xd0 kernel/sched/core.c:8503
 wait_on_page_bit_common+0x815/0xe00 mm/filemap.c:1356
 wait_on_page_locked include/linux/pagemap.h:688 [inline]
 gfs2_jhead_process_page+0x24e/0xbc0 fs/gfs2/lops.c:476
 gfs2_find_jhead+0xec2/0x1000 fs/gfs2/lops.c:597
 gfs2_recover_func+0x663/0x1bc0 fs/gfs2/recovery.c:462
 process_one_work+0x863/0x1000 kernel/workqueue.c:2310
 worker_thread+0xaa8/0x12a0 kernel/workqueue.c:2457
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
INFO: task syz.7.669:7826 blocked for more than 144 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.7.669       state:D stack:24680 pid: 7826 ppid:  7314 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5049 [inline]
 __schedule+0x11bb/0x4390 kernel/sched/core.c:6395
 schedule+0x11b/0x1e0 kernel/sched/core.c:6478
 bit_wait+0xd/0xc0 kernel/sched/wait_bit.c:199
 __wait_on_bit kernel/sched/wait_bit.c:49 [inline]
 out_of_line_wait_on_bit+0x15e/0x200 kernel/sched/wait_bit.c:64
 wait_on_bit include/linux/wait_bit.h:76 [inline]
 gfs2_recover_journal+0x104/0x150 fs/gfs2/recovery.c:579
 init_journal+0x1770/0x2220 fs/gfs2/ops_fstype.c:837
 init_inodes+0xdb/0x320 fs/gfs2/ops_fstype.c:891
 gfs2_fill_super+0x1701/0x1f50 fs/gfs2/ops_fstype.c:1249
 get_tree_bdev+0x3f1/0x610 fs/super.c:1325
 gfs2_get_tree+0x4d/0x1e0 fs/gfs2/ops_fstype.c:1332
 vfs_get_tree+0x88/0x270 fs/super.c:1530
 do_new_mount+0x24a/0xa40 fs/namespace.c:3034
 do_mount fs/namespace.c:3377 [inline]
 __do_sys_mount fs/namespace.c:3585 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3562
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f8934563e6a
RSP: 002b:00007f89327c8e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f89327c8ef0 RCX: 00007f8934563e6a
RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007f89327c8eb0
RBP: 0000200000000140 R08: 00007f89327c8ef0 R09: 0000000002810000
R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
R13: 00007f89327c8eb0 R14: 0000000000037fde R15: 00002000000001c0
 </TASK>

Showing all locks held in the system:
2 locks held by kworker/1:1/23:
 #0: ffff88801d633938 ((wq_completion)gfs_recovery){+.+.}-{0:0}, at: process_one_work+0x760/0x1000 kernel/workqueue.c:-1
 #1: ffffc90000ddfd00 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x7a3/0x1000 kernel/workqueue.c:2285
1 lock held by khungtaskd/27:
 #0: ffffffff8c11c760 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3946:
 #0: ffff88814cb11098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
 #1: ffffc90002cf62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x5ba/0x1a30 drivers/tty/n_tty.c:2158
3 locks held by kworker/0:17/4450:
 #0: ffff888016870938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x760/0x1000 kernel/workqueue.c:-1
 #1: ffffc9000490fd00 ((work_completion)(&map->work)){+.+.}-{0:0}, at: process_one_work+0x7a3/0x1000 kernel/workqueue.c:2285
 #2: ffffffff8c1210f0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0xa1/0x4b0 kernel/rcu/tree.c:4043
1 lock held by syz.7.669/7826:
 #0: ffff88802342a0e0 (&type->s_umount_key#106/1){+.+.}-{3:3}, at: alloc_super+0x201/0x950 fs/super.c:229
1 lock held by syz.6.733/8329:
 #0: ffff88802342a0e0 (&type->s_umount_key#123){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:716
1 lock held by syz.1.915/9508:
 #0: ffff88802342a0e0 (&type->s_umount_key#123){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:716
1 lock held by syz.9.1202/11550:
 #0: ffff8880611ea9d0 (&sb->s_type->i_mutex_key#28){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline]
 #0: ffff8880611ea9d0 (&sb->s_type->i_mutex_key#28){+.+.}-{3:3}, at: fuse_flush+0x209/0x720 fs/fuse/file.c:510
2 locks held by syz.9.1202/11551:
 #0: ffff888058a7e460 (sb_writers#22){.+.+}-{0:0}, at: vfs_writev fs/read_write.c:927 [inline]
 #0: ffff888058a7e460 (sb_writers#22){.+.+}-{0:0}, at: do_pwritev+0x1f2/0x340 fs/read_write.c:1025
 #1: ffff8880611ea9d0 (&sb->s_type->i_mutex_key#28){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline]
 #1: ffff8880611ea9d0 (&sb->s_type->i_mutex_key#28){+.+.}-{3:3}, at: fuse_cache_write_iter fs/fuse/file.c:1326 [inline]
 #1: ffff8880611ea9d0 (&sb->s_type->i_mutex_key#28){+.+.}-{3:3}, at: fuse_file_write_iter+0x2e9/0xd40 fs/fuse/file.c:1626
1 lock held by rm/11621:

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

NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x397/0x3d0 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x163/0x280 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
 watchdog+0xe0f/0xe50 kernel/hung_task.c:369
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 8219 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:cgroup_rstat_updated+0xc9/0x350 kernel/cgroup/rstat.c:38
Code: 08 4c 89 ff e8 b8 a6 4a 00 49 8b 07 4e 8d 7c 20 38 4c 89 f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 9b a6 4a 00 49 83 3f 00 <74> 14 e8 70 3e 06 00 48 83 c4 38 5b 41 5c 41 5d 41 5e 41 5f 5d c3
RSP: 0018:ffffc90003937788 EFLAGS: 00000086
RAX: 1ffffd1ffffb268e RBX: dffffc0000000000 RCX: ffff8880183a8000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000008
RBP: ffff888069328000 R08: dffffc0000000000 R09: fffffbfff1ad33a6
R10: fffffbfff1ad33a6 R11: 1ffffffff1ad33a5 R12: 0000607f46c93438
R13: ffff8880b9100000 R14: 0000000000000001 R15: ffffe8ffffd93470
FS:  0000555593d89500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000561908103138 CR3: 0000000069af1000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 cgroup_base_stat_cputime_account_end kernel/cgroup/rstat.c:364 [inline]
 __cgroup_account_cputime+0xbb/0x110 kernel/cgroup/rstat.c:375
 cgroup_account_cputime include/linux/cgroup.h:798 [inline]
 update_curr+0x462/0x8c0 kernel/sched/fair.c:858
 dequeue_entity+0x27/0xfc0 kernel/sched/fair.c:4570
 dequeue_task_fair+0x1a2/0xfd0 kernel/sched/fair.c:5924
 dequeue_task kernel/sched/core.c:2016 [inline]
 deactivate_task kernel/sched/core.c:2033 [inline]
 __schedule+0x688/0x4390 kernel/sched/core.c:6349
 schedule+0x11b/0x1e0 kernel/sched/core.c:6478
 freezable_schedule include/linux/freezer.h:172 [inline]
 do_nanosleep+0x1f1/0x760 kernel/time/hrtimer.c:2026
 hrtimer_nanosleep+0x2f7/0x520 kernel/time/hrtimer.c:2079
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1314 [inline]
 __se_sys_clock_nanosleep+0x2e6/0x370 kernel/time/posix-timers.c:1291
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9414a64f85
Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 f6 54 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 4f 55 ff ff 48 8b 04 24 48 83 c4 28 f7 d8
RSP: 002b:00007fffb55d1de0 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 0000000000000134 RCX: 00007f9414a64f85
RDX: 00007fffb55d1e20 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fffb55d1e8c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 000000000000005c
R13: 0000000000000061 R14: 0000000000064e3e R15: 00007fffb55d1ee0
 </TASK>