Bug 441817 - segfault on downgrade, repository
segfault on downgrade, repository
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: tog-pegasus (Show other bugs)
All Linux
low Severity medium
: rc
: ---
Assigned To: Vitezslav Crhonek
Depends On:
  Show dependency treegraph
Reported: 2008-04-10 07:23 EDT by Chris Ward
Modified: 2009-04-30 08:25 EDT (History)
2 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2009-04-30 08:25:20 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
partial tog-pegasus downgrade strace (14.25 MB, text/plain)
2008-04-10 07:23 EDT, Chris Ward
no flags Details
proposed patch for tog-pegasus 2.6.1 (1.36 KB, patch)
2009-04-23 08:10 EDT, Vitezslav Crhonek
no flags Details | Diff

  None (edit)
Description Chris Ward 2008-04-10 07:23:54 EDT
Description of problem:
When I downgrade tog-pegasus from version tog-pegasus-2.7.0-2.el5 (shipping with
RHEL 5.2) I get a segfault in the process. Everything downgrades fine, in terms
of package installation, however i'm concerned of course by the fact there is a
segfault at all. It seems the issue stems from the repository downgrade.

I'm not sure of the implications of this, but the segfault be corrected.

If I first remove /var/lib/Pegasus/repository/, then downgrade, no segfault occurs.

strace output is attached.

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

How reproducible:

Steps to Reproduce:
1.downgrade, for example, from tog-pegasus-2.7.0-2.el5 to

Actual results:
segfault during repo downgrade

Expected results:
no segfault
Comment 1 Chris Ward 2008-04-10 07:23:57 EDT
Created attachment 301966 [details]
partial tog-pegasus downgrade strace
Comment 3 Vitezslav Crhonek 2009-03-17 10:54:20 EDT
It doesn't occur when downgrading from 2.7.x to 2.7.y or from 2.6.x to 2.6.y.

I was not able to find exact statement in the documentation, but I believe that repositories are not backward-compatible between major releases.
Comment 4 Vitezslav Crhonek 2009-04-23 08:10:25 EDT
Created attachment 340930 [details]
proposed patch for tog-pegasus 2.6.1
Comment 5 Vitezslav Crhonek 2009-04-23 09:06:19 EDT
The issue is not present in tog-pegasus 2.7.x branch (which is shipped in RHEL5) - it's fixed by upstream.
Comment 7 RHEL Product and Program Management 2009-04-30 08:25:20 EDT
Development Management has reviewed and declined this request.  You may appeal
this decision by reopening this request.

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