[mythtvnz] segfault after upgrade

[Ross and Jemima Knudsen]

2009/11/24 Steven Ellis <steven at openmedia.co.nz>

>  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


Hi Steven,

Thanks for your comments.  Looks like it wasn't smooth sailing into 0.22 for
a few people.  I did some googling and looks like my error isn't isolated:

http://www.gossamer-threads.com/lists/mythtv/dev/370726

http://www.gossamer-threads.com/lists/mythtv/users/407927?page=last

The last guy tried killing all the channels and rescanning.  I'll give it a
go tonight and hopefully it fixes it!
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