github.com/google/syzkaller@v0.0.0-20240517125934-c0f1611a36d6/pkg/report/testdata/linux/guilty/62 (about)

     1  FILE: fs/gfs2/lops.c
     2  
     3  INFO: task kworker/1:2:2221 blocked for more than 143 seconds.
     4        Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0
     5  "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
     6  task:kworker/1:2     state:D stack:0     pid:2221  ppid:2      flags:0x00000008
     7  Workqueue: gfs_recovery gfs2_recover_func
     8  Call trace:
     9   __switch_to+0x180/0x298 arch/arm64/kernel/process.c:555
    10   context_switch kernel/sched/core.c:5209 [inline]
    11   __schedule+0x408/0x594 kernel/sched/core.c:6521
    12   schedule+0x64/0xa4 kernel/sched/core.c:6597
    13   io_schedule+0x38/0xbc kernel/sched/core.c:8741
    14   folio_wait_bit_common+0x430/0x97c mm/filemap.c:1296
    15   folio_wait_bit+0x30/0x40 mm/filemap.c:1440
    16   folio_wait_locked include/linux/pagemap.h:1022 [inline]
    17   gfs2_jhead_process_page+0xb4/0x40c fs/gfs2/lops.c:476
    18   gfs2_find_jhead+0x450/0x50c fs/gfs2/lops.c:594
    19   gfs2_recover_func+0x278/0xcc8 fs/gfs2/recovery.c:460
    20   process_one_work+0x2d8/0x504 kernel/workqueue.c:2289
    21   worker_thread+0x340/0x610 kernel/workqueue.c:2436
    22   kthread+0x12c/0x158 kernel/kthread.c:376
    23   ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:863
    24  INFO: task syz-executor189:3110 blocked for more than 143 seconds.
    25        Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0
    26  "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
    27  task:syz-executor189 state:D stack:0     pid:3110  ppid:3109   flags:0x00000009
    28  Call trace:
    29   __switch_to+0x180/0x298 arch/arm64/kernel/process.c:555
    30   context_switch kernel/sched/core.c:5209 [inline]
    31   __schedule+0x408/0x594 kernel/sched/core.c:6521
    32   schedule+0x64/0xa4 kernel/sched/core.c:6597
    33   bit_wait+0x18/0x60 kernel/sched/wait_bit.c:199
    34   __wait_on_bit kernel/sched/wait_bit.c:49 [inline]
    35   out_of_line_wait_on_bit+0xc8/0x140 kernel/sched/wait_bit.c:64
    36   wait_on_bit include/linux/wait_bit.h:76 [inline]
    37   gfs2_recover_journal+0xc0/0x104 fs/gfs2/recovery.c:577
    38   init_journal+0x930/0xcbc fs/gfs2/ops_fstype.c:835
    39   init_inodes+0x74/0x184 fs/gfs2/ops_fstype.c:889
    40   gfs2_fill_super+0x630/0x874 fs/gfs2/ops_fstype.c:1247
    41   get_tree_bdev+0x1e8/0x2a0 fs/super.c:1324
    42   gfs2_get_tree+0x30/0xc0 fs/gfs2/ops_fstype.c:1330
    43   vfs_get_tree+0x40/0x140 fs/super.c:1531
    44   do_new_mount+0x1dc/0x4e4 fs/namespace.c:3040
    45   path_mount+0x358/0x890 fs/namespace.c:3370
    46   do_mount fs/namespace.c:3383 [inline]
    47   __do_sys_mount fs/namespace.c:3591 [inline]
    48   __se_sys_mount fs/namespace.c:3568 [inline]
    49   __arm64_sys_mount+0x2c4/0x3c4 fs/namespace.c:3568
    50   __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
    51   invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
    52   el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
    53   do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197
    54   el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637
    55   el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
    56   el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584
    57  
    58  Showing all locks held in the system:
    59  1 lock held by rcu_tasks_kthre/11:
    60   #0: ffff80000d4a4768 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507
    61  1 lock held by rcu_tasks_trace/12:
    62   #0: ffff80000d4a4db8 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507
    63  1 lock held by khungtaskd/27:
    64   #0: ffff80000d4a4640 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:303
    65  2 locks held by kworker/1:2/2221:
    66   #0: ffff0000c028d138 ((wq_completion)gfs_recovery){+.+.}-{0:0}, at: process_one_work+0x270/0x504 kernel/workqueue.c:2262
    67   #1: ffff800015de3d80 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x29c/0x504 kernel/workqueue.c:2264
    68  2 locks held by getty/2758:
    69   #0: ffff0000c535f098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x28/0x58 drivers/tty/tty_ldisc.c:244
    70   #1: ffff80000f6be2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x19c/0x89c drivers/tty/n_tty.c:2177
    71  1 lock held by syz-executor189/3110:
    72   #0: ffff0000cb5ee0e0 (&type->s_umount_key#40/1){+.+.}-{3:3}, at: alloc_super+0xf8/0x430 fs/super.c:228
    73  
    74  =============================================