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Re: [Bug 1016173] Re: mythfrontend.real crashed with SIGSEGV in QFactoryLoader::instance()

 

Hi Thomas,

Thank you for this response.

I implemented the 5 seconds sleep & that worked fine, although with no
time to spare...  I will keep watch on that & increase the time if it
does not always work.  I wish that I had known it could be that easy &
well within my abilities...

I have 2 backend machines (each with 2 tuners & 2 recording HDDs) & 1
separate, specific Mythbuntu machine.  I also have Myth on my desktop
Ubuntu machine, mainly if I need to check anything.

I don't run the backends 24/7; I have used the BIOS timer to start them
around 17:00 & a cron-tab to stop them around 01:00.  We start the
frontend when we need it.  I have tried several times to implement the
wake-up feature, but without success.

I stored the music on the slave BE.  There were 13 directories created
(automatically?) under /mnt/mythTV3/mythtv/, including 1 for music, so
that seemed like the right place to put it.  This HDD (directory) is
recorded in the default storage group, as it also includes TV
recordings.

The 1000 songs have been recorded into 36 folders, one for each
artist/group.

In addition, I have entered /mnt/mythTV3/mythtv/music/ into the field
"Directory to hold music" in the FE Setup->Media Settings->Music
Settings->General Settings.

So I can see the songs, but can't get them to play.  Actually I just
noticed that I can't see them all; it seems to be stuck on one artist,
who has about 15 songs...

For playing the music, could there be a question of permissions, & if
so, who should that be?

Going back to your comment about the FE.  If I was to copy these music
folders onto the FE HDD, & describe that location to music settings,
they should play?

I live in Melbourne, Australia.  I have been retired for 12 year.  I
have been using Ubuntu for 8 years & Mythbuntu for 5 or 6 years.  For
the past 3 or 4 years, I have been doing 1 day/week volunteer work at a
not-for-profit computer recycling depot (Computerbank Victoria), where
we rebuild any re-usable computers for sale to needy people.  All of
these computers have Ubuntu installed.

Thanks for any help.

Cheers, Garry.

On Sun, 2015-01-11 at 21:27 +0000, Thomas Mashos wrote:
> For #1, you could add a "sleep 5" into /usr/bin/mythfrontend (probably
> around line 17). That will cause it to wait an additional 5 seconds
> before starting the frontend. There are more elegant solutions you
> could do, but that would be the easiest.
> 
> For #2, is the backend and frontend on the same machine? Because
> mythmusic doesn't use storage groups, so the files would have to be on
> the frontend to be played back.
>

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https://bugs.launchpad.net/bugs/1016173

Title:
  mythfrontend.real crashed with SIGSEGV in QFactoryLoader::instance()

Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
  Expired

Bug description:
  Opening domestically recoded dvd

  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: mythtv-frontend 2:0.25.0+fixes.20120427.58fd2a5-0ubuntu0mythbuntu3
  ProcVersionSignature: Ubuntu 3.2.0-25.40-generic 3.2.18
  Uname: Linux 3.2.0-25-generic x86_64
  .var.log.mythtv.mythavtest.log:
   
  .var.log.mythtv.mythccextractor.log:
   
  .var.log.mythtv.mythcommflag.log:
   
  .var.log.mythtv.mythjobqueue.log:
   
  .var.log.mythtv.mythlcdserver.log:
   
  .var.log.mythtv.mythmediaserver.log:
   
  .var.log.mythtv.mythshutdown.log:
   
  .var.log.mythtv.mythutil.log:
   
  .var.log.mythtv.mythwelcome.log:
   
  ApportVersion: 2.0.1-0ubuntu8
  Architecture: amd64
  CrashCounter: 1
  CrashDB: mythbuntu
  Date: Thu Jun 21 17:40:54 2012
  ExecutablePath: /usr/bin/mythfrontend.real
  InstallationMedia: Mythbuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  Installed_mythtv_dbg: 0.0
  ProcCmdline: /usr/bin/mythfrontend.real --syslog local7
  ProcEnviron:
   LANGUAGE=en_GB:en
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x7f5a1e8a7325 <_ZNK14QFactoryLoader8instanceERK7QString+37>:	mov    0x88(%r12),%rdx
   PC (0x7f5a1e8a7325) ok
   source "0x88(%r12)" (0x00000088) not located in a known VMA region (needed readable region)!
   destination "%rdx" ok
   Stack memory exhausted (SP below stack segment)
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: mythtv
  StacktraceTop:
   QFactoryLoader::instance(QString const&) const () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
   ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
   ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
   QImageReader::read(QImage*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
   QImageReader::read() () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
  Title: mythfrontend.real crashed with SIGSEGV in QFactoryLoader::instance()
  UpgradeStatus: Upgraded to precise on 2012-04-29 (53 days ago)
  UserGroups: adm admin cdrom dialout lpadmin mythtv plugdev sambashare video

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