[CentOS] tigervnc-server-module crashes after EL 6.3 update

Wed Aug 15 18:56:42 UTC 2012
Johnny Hughes <johnny at centos.org>

On 08/15/2012 09:47 AM, Cal Webster wrote:
> On Tue, 2012-08-14 at 20:55 -0500, Johnny Hughes wrote:
>> On 08/14/2012 05:23 PM, Cal Webster wrote:
>>> We began experiencing failed vnc connections to the console display on
>>> servers that have been updated to EL 6.3. No such failures have occurred
>>> on similar connections to EL 6.2 servers.
>>> On the client machine a normal vncviewer display appears with the
>>> expected graphical login until the mouse pointer is moved within the
>>> boundaries of the vncviewer window. At this point the window closes and
>>> an error message appears in both a pop-up window and in the terminal
>>> window in which the session was initiated stating "read: Connection
>>> reset by peer (104)".
>>> On the server end, a core dump is generated and a abrt bug report is
>>> created.
>>> /var/log/messages
>>> ----------------------------------------------
>>> Aug 14 11:00:30 jato2 abrt[11411]: File '/usr/bin/Xorg' seems to be
>>> deleted
>>> Aug 14 11:00:30 jato2 abrt[11411]: Saved core dump of pid 7892
>>> (/usr/bin/Xorg) to /var/spool/abrt/ccpp-2012-08-14-11:00:30-7892
>>> (42041344 bytes)
>>> Aug 14 11:00:30 jato2 abrtd: Directory 'ccpp-2012-08-14-11:00:30-7892'
>>> creation detected
>>> ----------------------------------------------
>>> This bug has been reported in the CentOS bug tracker here:
>>> 0005824: tigervnc-server-module keep crashing
>>> http://bugs.centos.org/view.php?id=5824
>>> However, this appears to be a bug upstream. The source RPM provided with
>>> CentOS is identical to that of upstream with no modifications. Also,
>>> there is an upstream bug reported that appears to have the same
>>> symptoms. I have added a comment to the upstream bug report (listed
>>> below) if anyone wishes to see the details.
>>> tigervnc-server-module crashes with dual screen setup
>>> https://bugzilla.redhat.com/show_bug.cgi?id=820443
>>> We have verified that rebuilding the unmodified source RPM for tigervnc
>>> produces a tigervnc-server-module RPM that does not suffer from this
>>> bug.
>>> Removing the original tigervnc-server-module package and replacing it
>>> with the rebuilt one fixes the problem.
>>> I've duplicated the problem on 2 EL 6.3 x86_64 single-head display
>>> machines and have verified the fix.
>>> Tomorrow, I'll duplicate the problem on a dual-head x86_64 machine that
>>> currently still works after updating to EL 6.2 then confirm the the fix.
>> Did you rebuild the SRPM using mock or directly on a physical machine
>> with rpmbuild?
> No mock, just a simple "rpmbuild -ba SPEC/tigervnc.spec"

OK, if you find that this solves your problems for sure, I will build
the SRPM outside of mock and see if it is different.

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