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** Attachment added: "ThreadStacktrace.txt"
   https://bugs.launchpad.net/bugs/1674072/+attachment/4840295/+files/ThreadStacktrace.txt

** Attachment removed: "CoreDump.gz"
   https://bugs.launchpad.net/bugs/1674072/+attachment/4840273/+files/CoreDump.gz

** Changed in: fluidsynth (Ubuntu)
   Importance: Undecided => Medium

** Tags removed: need-i386-retrace

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https://bugs.launchpad.net/bugs/1674072

Title:
  fluidsynth crashed with SIGSEGV in jack_port_get_buffer()

Status in fluidsynth package in Ubuntu:
  New

Bug description:
  Just tried starting it from the command line with a midi file.  Jack
  available but not running at the time I tried this.

  I cannot vouch whether this was started with or without pasuspender: I
  tried both since without pasuspender fluidsynth (or jack) complained
  about Pulseaudio hogging the device.  It could have crashed after the
  complaint, or it could have crashed independently without such a
  complaint.

  ProblemType: Crash
  DistroRelease: Ubuntu 17.04
  Package: fluidsynth 1.1.6-4
  ProcVersionSignature: Ubuntu 4.10.0-11.13-lowlatency 4.10.1
  Uname: Linux 4.10.0-11-lowlatency x86_64
  ApportVersion: 2.20.4-0ubuntu2
  Architecture: i386
  CurrentDesktop: MATE
  Date: Sun Mar 19 09:28:47 2017
  ExecutablePath: /usr/bin/fluidsynth
  InstallationDate: Installed on 2011-10-14 (1982 days ago)
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111011)
  ProcCmdline: fluidsynth /home/username/scores/tabber.midi
  SegvAnalysis:
   Segfault happened at: 0xf72d9194 <jack_port_get_buffer+20>:	mov    0xc(%esi),%edx
   PC (0xf72d9194) ok
   source "0xc(%esi)" (0x0000000c) not located in a known VMA region (needed readable region)!
   destination "%edx" ok
   Stack memory exhausted (SP below stack segment)
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: fluidsynth
  StacktraceTop:
   jack_port_get_buffer () from /usr/lib/i386-linux-gnu/libjack.so.0
   fluid_jack_driver_process () from /usr/lib/i386-linux-gnu/libfluidsynth.so.1
   ?? () from /usr/lib/i386-linux-gnu/libjack.so.0
   start_thread (arg=0xf6809b40) at pthread_create.c:333
   clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:113
  Title: fluidsynth crashed with SIGSEGV in jack_port_get_buffer()
  UpgradeStatus: Upgraded to zesty on 2017-01-05 (72 days ago)
  UserGroups: adm admin audio cdrom dialout fax floppy lpadmin lxd plugdev pulse-access sambashare

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