[mythtvnz] segfault after upgrade

[Steven Ellis]

On Tue, November 24, 2009 9:12 am, Dr. David J. Knowles wrote:
> Hi,
>
> I tried an upgrade and had seg faults when running the frontend.
>
> Try typing the following in a console:
>
> dpkg --list | grep myth
>
> This will list all the installed packages relating to mythtv.
>
> Look for a package
>
> libmyth-0.21-0
>
> This is the library for the mythtv version 0.21. It does not appear to
> be uninstalled during the upgrade and messes up the 0.22 programs.
>
> If you have it uninstall it by typing:
>
> sudo apt-get remove libmyth-0.21-0
>
> This should remove the library.
>
> Reboot and see if this works.
>
> Good luck.
>
> David
>
> ------------------------------------------------------------------------
> Dr. David J. Knowles  <dknowles at clearfield.com> Senior Systems Architect
> Phone (+64 9)  358 2081                          Clearfield Software Ltd
> Fax   (+64 9)  358 2083                    1st Floor 8-10 Whitaker Place
> Mob   (+64 21) 75 9090                P O Box 3901 Auckland, New Zealand
> ------------------------------------------------------------------------
>
>
>
> Ross and Jemima Knudsen wrote:
>> Hi all,
>>
>> Well I finally decided to give 0.22 a go.  I upgraded it last night but
>> am now having problems with the backend.  I have tried reinstalling
>> those packages a couple of times but with no luck.  I'm using JYA's
>> release repo on Ubuntu 9.04 AMD64.  Starting the frontend results in it
>> complaining that the backend is not available and to check my IP
>> addresses etc.  Sure enough the backend process is not running and
>> manually forcing it to restart results in a segfault:
>>
>> mythserver kernel: [ 1410.241167] mythbackend[7123]: segfault at
>> 7fff98da1e18 ip 00007f2189fcdb37 sp 00007fff98da1e00 error 6 in
>> libQtCore.so.4.5.0[7f2189f14000+240000]
>>
>> Looks to be some error with libQtCore, and its probably something
>> straight forward but what have I missed?
>>
>> Regards
>> Rossco

I've had some similar issues with segfaults. Here are some recent ones

dmesg | grep segfault


[  261.483550] mythbackend[3089]: segfault at 7d7b7a82 ip 016bc448 sp
bfdfba6c error 6 in libc-2.10.1.so[164f000+13e000]
[112287.612306] mythbackend[18637]: segfault at 7f7f7f87 ip 03bc4448 sp
bfd97f7c error 6 in libc-2.10.1.so[3b57000+13e000]
[562794.317013] mythfrontend.re[7947]: segfault at 69 ip 00c08309 sp
7f6f2f50 error 6 in libmythtv-0.22.so.0.22.0[764000+a6c000]
[562844.434071] mythfrontend.re[8124]: segfault at 69 ip 00b48309 sp
ae73ff50 error 6 in libmythtv-0.22.so.0.22.0[6a4000+a6c000]
[613620.761031] mythbackend[13037]: segfault at 8ed6c38 ip 08e0c65e sp
bf8a7c10 error 7 in libmyth-0.22.so.0.22.0[8bce000+2fe000]
[703906.381211] mythbackend[11350]: segfault at 89bfe9c ip 089beb80 sp
bff7a2b0 error 7 in libnvidia-tls.so.185.18.36[89be000+1000]
[972438.686849] mythbackend[2416]: segfault at 8f47000 ip 089edeef sp
bff82970 error 6 in libmythavcodec-0.22.so.0.22.0[898b000+3f4000]

This host wasn't upgraded from an earlier Mythbuntu, but it did start out
with the beta install of 9.10

Currently has the following

dpkg -l libmyth\*
Desired=Unknown/Install/Remove/Purge/Hold
|
Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                                    Version                       
         Description
+++-=======================================-=======================================-==============================================================================================
ii  libmyth-0.22-0                          0.22.0+fixes22594-0ubuntu1    
         Common library code for MythTV and add-on modules (runtime)
ii  libmyth-perl                            0.22.0+fixes22594-0ubuntu1    
         A PERL library to access some MythTV features
ii  libmyth-python                          0.22.0+fixes22594-0ubuntu1    
         A python library to access some MythTV features



--------------------------------------------
Steven Ellis - Technical Director
OpenMedia Limited - The Home of myPVR
email   - steven at openmedia.co.nz
website - http://www.openmedia.co.nz