[Bugs] [Bug 1521119] New: GlusterFS segmentation fault when deleting files from sharded tiered volume

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1521119

            Bug ID: 1521119
           Summary: GlusterFS segmentation fault when deleting files from
                    sharded tiered volume
           Product: GlusterFS
           Version: 3.12
         Component: sharding
          Assignee: bugs at gluster.org
          Reporter: vnosov at stonefly.com
        QA Contact: bugs at gluster.org
                CC: bugs at gluster.org



Created attachment 1363338
  --> https://bugzilla.redhat.com/attachment.cgi?id=1363338&action=edit
The volume glusterfs configuration

Description of problem: Create tiered volume with 2099GB cold segment and 1GB
hot segment. Enable sharding for the volume with features.shard-block-size:
16MB and cluster.tier-demote-frequency: 150. Enable CIFS export for the volume.
Mount volume on Windows host. Write 100GB files to the volume. 3 files were
written to the volume in the test. File deletion could be executed on the host
or it could be executed on Linix system where the volume is provisioned and has
SMB mount. In any case failure will be the same. In the test the volume was
unmounted from the host and deletion was executed on SMB mount. After the
deletion command was submitted GlusterFS hit segmentation fault.   


Version-Release number of selected component (if applicable):
GlusterFS 3.12.3


How reproducible:
100%


Steps to Reproduce:
1. See the attached text file.
2.
3.

Actual results:
One of GlusterFS processes hit segmentation fault.


Expected results:
The selected files have to be deleted as it is requested.


Additional info: see GlusterFS core file, see GlusterFS log files.

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