Comment 19 for bug 1901783

Reviewed: https://review.opendev.org/c/openstack/cinder/+/796889
Committed: https://opendev.org/openstack/cinder/commit/2da7d42b91fd0015f8bfb2b67067eaf5768691ca
Submitter: "Zuul (22348)"
Branch: master

commit 2da7d42b91fd0015f8bfb2b67067eaf5768691ca
Author: Eric Harney <email address hidden>
Date: Sat Jul 17 15:39:31 2021 +0000

    Retry "lvs" call on segfault for _get_thin_pool_free_space

    This is a follow-up to I6824ba4f.

    LVM commands segfault occasionally, exiting with code 139.
    Change I6824ba4f introduced a workaround to retry the command
    when code 139 is returned, which generally works. This expands
    that retry to the case where thin pool space is queried, which
    currently results in the LVM driver reporting no free space to
    the scheduler.

    Further work is needed to expand this to other LVM calls, but
    this patch is narrow in scope to target a particular gate
    failure.

    Related-Bug: #1901783
    Partial-Bug: #1932188
    Closes-Bug: #1932287
    Change-Id: I0a2420f3e4a411f5fa52ebe2d22859b138ef387f