vlc crashed with SIGSEGV in varcmp()

Bug #1436499 reported by Eliah Kagan
10
This bug affects 1 person
Affects Status Importance Assigned to Milestone
vlc (Ubuntu)
Expired
Medium
Unassigned

Bug Description

I successfully imported a large music library (~310 GiB in ~64000 files) into vlc 2.2.0~pre2-4build1 on a Lubuntu Utopic amd64 system, listened to music for a while, left and returned to my machine a couple hours later, closed vlc, reopened it (seeing that my imported music was still listed), then closed it again. At some point after I got back to my machine, vlc crashed, but I don't know when since the only reason I know a crash happened was that Apport told me. I suspect the crash occurred when I closed vlc the second time, though it may have been when I closed vlc the first time, or at some other point.

Hopefully the automatically attached stack trace will provide useful information.

ProblemType: Crash
DistroRelease: Ubuntu 14.10
Package: vlc-nox 2.2.0~pre2-4build1
ProcVersionSignature: Ubuntu 3.16.0-33.44-generic 3.16.7-ckt7
Uname: Linux 3.16.0-33-generic x86_64
ApportVersion: 2.14.7-0ubuntu8.2
Architecture: amd64
CurrentDesktop: LXDE
Date: Wed Mar 25 13:51:18 2015
ExecutablePath: /usr/bin/vlc
InstallationDate: Installed on 2014-10-15 (161 days ago)
InstallationMedia: Lubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20141014)
ProcCmdline: /usr/bin/vlc --started-from-file
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7fcf159e75d0 <varcmp>: mov (%rsi),%rsi
 PC (0x7fcf159e75d0) ok
 source "(%rsi)" (0x00000004) not located in a known VMA region (needed readable region)!
 destination "%rsi" ok
 Stack memory exhausted (SP below stack segment)
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: vlc
StacktraceTop:
 varcmp (a=0x7fcee9f90d30, b=0x4) at misc/variables.c:145
 __tfind (key=key@entry=0x7fcee9f90d30, vrootp=vrootp@entry=0x1be5cd8, compar=compar@entry=0x7fcf159e75d0 <varcmp>) at tsearch.c:320
 Lookup (psz_name=0x7fcf15a0d5cb "item-change", obj=0x1be5d68) at misc/variables.c:154
 var_SetChecked (p_this=0x1be5d68, psz_name=psz_name@entry=0x7fcf15a0d5cb "item-change", expected_type=expected_type@entry=112, val=...) at misc/variables.c:712
 var_SetAddress (ptr=<optimized out>, psz_name=0x7fcf15a0d5cb "item-change", p_obj=<optimized out>) at ../include/vlc_variables.h:287
Title: vlc crashed with SIGSEGV in varcmp()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

Revision history for this message
Eliah Kagan (degeneracypressure) wrote :
information type: Private → Public
Revision history for this message
Apport retracing service (apport) wrote :

StacktraceTop:
 varcmp (a=0x7fcee9f90d30, b=0x4) at misc/variables.c:145
 __tfind (key=key@entry=0x7fcee9f90d30, vrootp=vrootp@entry=0x1be5cd8, compar=compar@entry=0x7fcf159e75d0 <varcmp>) at tsearch.c:320
 Lookup (psz_name=0x7fcf15a0d5cb "item-change", obj=0x1be5d68) at misc/variables.c:154
 var_SetChecked (p_this=0x1be5d68, psz_name=psz_name@entry=0x7fcf15a0d5cb "item-change", expected_type=expected_type@entry=112, val=...) at misc/variables.c:712
 var_SetAddress (ptr=<optimized out>, psz_name=0x7fcf15a0d5cb "item-change", p_obj=<optimized out>) at ../include/vlc_variables.h:287

Revision history for this message
Apport retracing service (apport) wrote : Stacktrace.txt
Revision history for this message
Apport retracing service (apport) wrote : StacktraceSource.txt
Revision history for this message
Apport retracing service (apport) wrote : ThreadStacktrace.txt
Changed in vlc (Ubuntu):
importance: Undecided → Medium
tags: removed: need-amd64-retrace
Revision history for this message
Sebastian Ramacher (s-ramacher) wrote :

Sorry for the delay. Is this issue still present in the current 2.2.6 packages?

Changed in vlc (Ubuntu):
status: New → Incomplete
Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for vlc (Ubuntu) because there has been no activity for 60 days.]

Changed in vlc (Ubuntu):
status: Incomplete → Expired
To post a comment you must log in.
This report contains Public information  
Everyone can see this information.

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.