Red Hat Bugzilla – Bug 813954
Various dm_task_run failures cause many continuing problems in LVM
Last modified: 2017-04-04 16:45:19 EDT
Several bugs that are attributed to mirroring or other LVM components boil down to issues with 'dm_task_run'. These 'dm_task_run' errors prop-up intermittently and make the bugs difficult to reproduce. Often, the way to reproduce is loop over a particular operation until /something/ is hit.
This bug is going to be used to encapsulate the various RHEL5 bugs that have popped up due to 'dm_task_run' failures. The 'dm_task_run' issues should be solved before these other dependent bugs.
Do we have any -vvvv traces of failing commands here ?
There should be reasonable good explanation in debug log with the reason of dm_task_run failure.
The verbose output would be tough to catch through a script, but I will try to do so in the near future.
In any case the dm_task_run failures are still present and show up very often with mirror failure tests we have.
Note that even though bug 644071 is fixed, there are still 'dm_task_run' failures occurring.
Please attach normally readable file for this public open BZ.
This request was evaluated by Red Hat Product Management for inclusion
in a Red Hat Enterprise Linux release. Product Management has
requested further review of this request by Red Hat Engineering, for
potential inclusion in a Red Hat Enterprise Linux release for currently
deployed products. This request is not yet committed for inclusion in
We need the information as requested in comment #14 to move along with the analysis of the problem.... (the customer case attached here)
So, do we have any more debug information here to hook on? Does this happen only on RHEL5 or is it seen on RHEL6/7 as well?
*** Bug 654116 has been marked as a duplicate of this bug. ***
This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.
Red Hat Enterprise Linux 5 shipped it's last minor release, 5.11, on September 14th, 2014. On March 31st, 2017 RHEL 5 exits Production Phase 3 and enters Extended Life Phase. For RHEL releases in the Extended Life Phase, Red Hat will provide limited ongoing technical support. No bug fixes, security fixes, hardware enablement or root-cause analysis will be available during this phase, and support will be provided on existing installations only. If the customer purchases the Extended Life-cycle Support (ELS), certain critical-impact security fixes and selected urgent priority bug fixes for the last minor release will be provided. The specific support and services provided during each phase are described in detail at http://redhat.com/rhel/lifecycle
This BZ does not appear to meet ELS criteria so is being closed WONTFIX. If this BZ is critical for your environment and you have an Extended Life-cycle Support Add-on entitlement, please open a case in the Red Hat Customer Portal, https://access.redhat.com ,provide a thorough business justification and ask that the BZ be re-opened for consideration of an errata. Please note, only certain critical-impact security fixes and selected urgent priority bug fixes for the last minor release can be considered.