Red Hat Bugzilla – Bug 813954
Various dm_task_run failures cause many continuing problems in LVM
Last modified: 2014-07-15 20:27:25 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.
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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. ***
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