Bug 1395700 - qdrouterd 0.4-19 segfault when qpidd down for longer time and goferd restarted
Summary: qdrouterd 0.4-19 segfault when qpidd down for longer time and goferd restarted
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Satellite
Classification: Red Hat
Component: katello-agent
Version: 6.2.4
Hardware: x86_64
OS: Linux
urgent
urgent
Target Milestone: Unspecified
Assignee: satellite6-bugs
QA Contact: Jitendra Yejare
URL: https://bugzilla.redhat.com/show_bug....
Whiteboard:
Depends On: 1393128 1396568
Blocks: 1399395
TreeView+ depends on / blocked
 
Reported: 2016-11-16 13:24 UTC by Bryan Kearney
Modified: 2020-09-20 13:37 UTC (History)
12 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Under certain conditions, build 19 of the dispatch router can terminate unexpectedly with a segmentation fault. The memory management has been improved to prevent this happening.
Clone Of: 1393128
Environment:
Last Closed: 2018-02-21 12:57:01 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Knowledge Base (Solution) 2765811 0 None None None 2016-11-16 13:24:30 UTC
Red Hat Product Errata RHBA-2018:0338 0 normal SHIPPED_LIVE Red Hat Satellite 6.3 Tools 2018-02-21 19:30:02 UTC

Comment 2 Jitendra Yejare 2017-10-04 15:12:07 UTC 
Verifying this bug using steps mentioned in comment of similar bug: 
https://bugzilla.redhat.com/show_bug.cgi?id=1393128#c11

Steps Followed:

1. Had all Sat services running

2. On satellite6, freezed qpidd process for at least 11 seconds and then unfreezed it:
# kill -SIGSTOP $(pgrep qpidd); sleep 11; kill -SIGCONT $(pgrep qpidd)

3. Immediately after the expect script is running, restarted goferd on only one content(DIDNT TRY WITH MULTIPLE) host :
# service goferd restart; sleep 3; service goferd restart

4. Check qdrouterd service status


Behavior:

I don't see any segfault in qdrouterd status.

@pavel, Is this ok if I can mark this bug as verified ?
Comment 3 Pavel Moravec 2017-10-05 11:14:39 UTC 
(In reply to Jitendra Yejare from comment #2)
> Verifying this bug using steps mentioned in comment of similar bug: 
> https://bugzilla.redhat.com/show_bug.cgi?id=1393128#c11
> 

Yes, that is the most reliable reproducer of the race condition (though using artificial steps not triggered by a regular activity - just mimicking some unknown real activity). One Content Host (with 2 goferd restarts in sequence) is sufficient.

Sat 6.3 uses quite higher version of qdrouterd, so it is probable that this segfault has never been in that rebased version of qdrouterd.
Comment 4 Jitendra Yejare 2017-10-05 12:22:15 UTC 
As per comment 2 and 3, changing the bug status to Verified!
Comment 7 errata-xmlrpc 2018-02-21 12:57:01 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2018:0338
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