ffado-test-streaming crashed with SIGSEGV in Streaming::StreamProcessor::packetsStopped()

[David Kastrup]

No idea what this is about. Ffado seems very unstable recently. C++ API change or something?

ProblemType: Crash
DistroRelease: Ubuntu 17.10
Package: ffado-tools 2.3.0-2
ProcVersionSignature: Ubuntu 4.12.0-11.12-lowlatency 4.12.5
Uname: Linux 4.12.0-11-lowlatency x86_64
ApportVersion: 2.20.7-0ubuntu1
Architecture: amd64
Date: Wed Aug 30 22:45:15 2017
ExecutablePath: /usr/bin/ffado-test-streaming
InstallationDate: Installed on 2011-10-14 (2147 days ago)
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111011)
ProcCmdline: ffado-test-streaming
SegvAnalysis:
 Segfault happened at: 0x7f70246776fc <_ZN9Streaming15StreamProcessor14packetsStoppedEv+12>: movl $0x2,0x64(%rax)
 PC (0x7f70246776fc) ok
 source "$0x2" ok
 destination "0x64(%rax)" (0x00000064) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: libffado
StacktraceTop:
 Streaming::StreamProcessor::packetsStopped() () at /usr/lib/libffado.so.2
 IsoHandlerManager::IsoHandler::disable() () at /usr/lib/libffado.so.2
 IsoHandlerManager::IsoHandler::~IsoHandler() () at /usr/lib/libffado.so.2
 IsoHandlerManager::pruneHandlers() () at /usr/lib/libffado.so.2
 IsoHandlerManager::unregisterStream(Streaming::StreamProcessor*) () at /usr/lib/libffado.so.2
Title: ffado-test-streaming crashed with SIGSEGV in Streaming::StreamProcessor::packetsStopped()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 Streaming::StreamProcessor::packetsStopped() () from /tmp/apport_sandbox_4O6Pex/usr/lib/libffado.so.2
 IsoHandlerManager::IsoHandler::disable() () from /tmp/apport_sandbox_4O6Pex/usr/lib/libffado.so.2
 IsoHandlerManager::IsoHandler::~IsoHandler() () from /tmp/apport_sandbox_4O6Pex/usr/lib/libffado.so.2
 IsoHandlerManager::pruneHandlers() () from /tmp/apport_sandbox_4O6Pex/usr/lib/libffado.so.2
 IsoHandlerManager::unregisterStream(Streaming::StreamProcessor*) () from /tmp/apport_sandbox_4O6Pex/usr/lib/libffado.so.2

[Pander (pander)]

From FFADO maintainer:

   Bug: Segfault in ffado-test-streaming, seemingly while shutting down.
        This may be due to the user stopping the program or an xrun. More
        details about the scenario are required.

   Suggestion:
       Test using jackd rather than ffado-test-streaming. The
       ffado-test-streaming tool does not receive extensive testing and
       exists mainly for the use of the development team. It would be
       interesting to know why the user was running ffado-test-streaming.

       If FFADO still fails when used with jackd, run
           jackd -d firewire -p512 -n3 -v6 >& /tmp/ffado.log
       and post the result to the ffado-devel mailing list for further
       follow up. Include the output of ffado-diag if possible and mention
       which audio device is in use.