Ubuntu
mythtv package

mythbackend crashed with SIGILL in NetInterfaceTrafficStats::NetInterfaceTrafficStats()

Bug #198104 reported by Peter Alderson on 2008-03-03

This bug report is a duplicate of: Bug #198115: Mytbackend killed with SIGILL on AMD. Edit Remove

6

Affects		Status	Importance	Assigned to	Milestone
	mythtv (Ubuntu)	Fix Released	Undecided	Unassigned

Bug Description

Binary package hint: mythtv

Ubuntu 8.04 alpha 5 with updates up to 3 March 2008
MythTV 0.21.0~fixes16338-0ubuntu2
MythTV 0.21 on Ubuntu 8.04 was working OK but after recent updates it has consistently crashedwhen trying to start mythbackend

ProblemType: Crash
Architecture: i386
Date: Mon Mar 3 18:42:05 2008
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/bin/mythbackend
NonfreeKernelModules: cdrom
Package: mythtv-backend 0.21.0~fixes16338-0ubuntu2
PackageArchitecture: i386
ProcCmdline: /usr/bin/mythbackend --daemon --logfile /var/log/mythtv/mythbackend.log --pidfile /var/run/mythtv/mythbackend.pid
ProcEnviron: PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
Signal: 4
SourcePackage: mythtv
StacktraceTop:
NetInterfaceTrafficStats::NetInterfaceTrafficStats ()
?? () from /usr/lib/libmythlivemedia-0.21.so.0
?? () from /usr/lib/libmythlivemedia-0.21.so.0
?? () from /usr/lib/libmythlivemedia-0.21.so.0
?? ()
Title: mythbackend crashed with SIGILL in NetInterfaceTrafficStats::NetInterfaceTrafficStats()
Uname: Linux 2.6.24-11-generic i686
UserGroups: audio cdrom dialout video

Tags:

Related branches

lp:ubuntu/karmic/mythtv

Revision history for this message

Peter Alderson (ubuntu-beyondboothambar) wrote on 2008-03-03:

#1

Dependencies.txt Edit (6.3 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (1.0 KiB, text/plain; charset="utf-8")
ProcMaps.txt Edit (12.4 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (636 bytes, text/plain; charset="utf-8")
Registers.txt Edit (534 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (471 bytes, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (498 bytes, text/plain; charset="utf-8")

Revision history for this message

Apport retracing service (apport) wrote on 2008-03-03: Symbolic stack trace

#2

Stacktrace.txt (retraced) Edit (861 bytes, text/plain)

StacktraceTop:_start () from /lib/ld-linux.so.2
?? ()
?? ()
?? ()
?? ()

Revision history for this message

Apport retracing service (apport) wrote on 2008-03-03: Symbolic threaded stack trace

#3

ThreadStacktrace.txt (retraced) Edit (888 bytes, text/plain)

Revision history for this message

Mario Limonciello (superm1) wrote on 2008-03-08:

#4

This is likely from running on a computer without SSE unfortunately. We'll see what we can do about it.

Revision history for this message

Peter Alderson (ubuntu-beyondboothambar) wrote on 2008-03-08:

#5

Mario - Has it just become more likely with recent updates to MythTV? I have run MythTV on this computer for a year without this problem but since applying MythTV updates about a week ago (fixes16338?) it has always failed in this way. Is there anything I can do? Peter

Revision history for this message

Peter Alderson (ubuntu-beyondboothambar) wrote on 2008-03-08:

#6

Mario - My CPU has 3dnow, which is AMD's sse, Peter

Revision history for this message

Mario Limonciello (superm1) wrote on 2008-03-08: Re: [Bug 198104] Re: mythbackend crashed with SIGILL in NetInterfaceTrafficStats::NetInterfaceTrafficStats()

#7

Peter Alderson wrote:
> *** This bug is a duplicate of bug 198115 ***
> https://bugs.launchpad.net/bugs/198115
>
> Mario - Has it just become more likely with recent updates to MythTV? I
> have run MythTV on this computer for a year without this problem but
> since applying MythTV updates about a week ago (fixes16338?) it has
> always failed in this way. Is there anything I can do? Peter
>
Peter,

Yes, this was with very very recent updates. We changed optimizations to try to
pull some more performance from the general class of CPUs people were using.
We'll have to drop back down to what we had before I suppose.

--
Mario Limonciello
<email address hidden>

Revision history for this message

Anders Kvist (akv) wrote on 2008-03-08:

#8

Why drop down? I think the best way would be to maintain two sets of functions one optimized and one without...and runtime CPU detection.

/Anders

Revision history for this message

Launchpad Janitor (janitor) wrote on 2008-03-08:

#9

This bug was fixed in the package mythtv - 0.21.0-0ubuntu1

---------------
mythtv (0.21.0-0ubuntu1) hardy; urgency=low

  * New upstream version. (LP: #192486)
  * Include etc/network/if-up.d/mythtv-backend.if-up.d. This makes sure
    that if the network is to come up late, myth starts late. (LP: #187348)
  * Start mysql from mythtv-database postinst if we can.
  * Start mythtv-setup with taskset -c 0 (Thanks Daniel Kristjansson)
  * Only --tune to i686 again due to upstream changes in the configure
    script. This time add MMX though. (LP: #198104) (LP: #198115)

-- Mario Limonciello <email address hidden> Sat, 08 Mar 2008 01:31:06 -0600

Changed in mythtv:
status:	New → Fix Released

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