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mount.ocfs2 failed when reading ocfs2 filesystem superblock encounters an error. ocfs2_initialize_super() returns before allocating ocfs2_wq. ocfs2_dismount_volume() triggers the following panic. Oct 15 16:09:27 cnwarekv-205120 kernel: On-disk corruption discovered.Please run fsck.ocfs2 once the filesystem is unmounted. Oct 15 16:09:27 cnwarekv-205120 kernel: (mount.ocfs2,22804,44): ocfs2_read_locked_inode:537 ERROR: status = -30 Oct 15 16:09:27 cnwarekv-205120 kernel: (mount.ocfs2,22804,44): ocfs2_init_global_system_inodes:458 ERROR: status = -30 Oct 15 16:09:27 cnwarekv-205120 kernel: (mount.ocfs2,22804,44): ocfs2_init_global_system_inodes:491 ERROR: status = -30 Oct 15 16:09:27 cnwarekv-205120 kernel: (mount.ocfs2,22804,44): ocfs2_initialize_super:2313 ERROR: status = -30 Oct 15 16:09:27 cnwarekv-205120 kernel: (mount.ocfs2,22804,44): ocfs2_fill_super:1033 ERROR: status = -30 ------------[ cut here ]------------ Oops: 0002 [#1] SMP NOPTI CPU: 1 PID: 11753 Comm: mount.ocfs2 Tainted: G E 4.14.148-200.ckv.x86_64 #1 Hardware name: Sugon H320-G30/35N16-US, BIOS 0SSDX017 12/21/2018 task: ffff967af0520000 task.stack: ffffa5f05484000 RIP: 0010:mutex_lock+0x19/0x20 Call Trace: flush_workqueue+0x81/0x460 ocfs2_shutdown_local_alloc+0x47/0x440 [ocfs2] ocfs2_dismount_volume+0x84/0x400 [ocfs2] ocfs2_fill_super+0xa4/0x1270 [ocfs2] ? ocfs2_initialize_super.isa.211+0xf20/0xf20 [ocfs2] mount_bdev+0x17f/0x1c0 mount_fs+0x3a/0x160 Link: http://lkml.kernel.org/r/1571139611-24107-1-git-send-email-yili@winhong.com Signed-off-by: Yi Li <yilikernel@gmail.com> Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Changwei Ge <gechangwei@live.cn> Cc: Gang He <ghe@suse.com> Cc: Jun Piao <piaojun@huawei.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.