[Bug 576827] Re: munin-graph crashed with SIGSEGV in FcPatternDestroy()

[Vladimir Kolesnikov]

I quit that hosting service ~6 months ago and don't have access to that
box anymore.

However, I asked them to do the complete memory test in the past and
they even replaced one bank of RAM - but crashes kept on happenning.

Can't say anything about munin, but awstats crashed only on very large
log files (several hundred megs...1 G+). When I configured max log size
to 100 MB, awstats crashes stopped. First I thought this happened due to
out of memory error and looked for "out of memory" / "OOM" lines in the
/var/log/kern.log, but the logs were clean.

At that Perl was the only application that crashed - the server ran
several high-loaded sites, a lot of memory was given to MySQL, PHP (we
used php-cgi - 15 or 20 children) and Memcached but neither of them ever
crashed.

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Title:
  munin-graph crashed with SIGSEGV in FcPatternDestroy()

Status in “perl” package in Ubuntu:
  Incomplete

Bug description:
  Binary package hint: munin

  $ lsb_release -rd
  Description:    Ubuntu 9.10
  Release:        9.10

  $ apt-cache policy munin
  munin:
    Installed: 1.2.6-13ubuntu3
    Candidate: 1.2.6-13ubuntu3
    Version table:
   *** 1.2.6-13ubuntu3 0
          500 http://us.archive.ubuntu.com karmic/main Packages
          100 /var/lib/dpkg/status

  $ dpkg -l | grep perl | awk '{print $2, $3}'
  libapparmor-perl 2.3.1+1403-0ubuntu27.3
  libbit-vector-perl 6.6-1
  libcarp-clan-perl 6.00-1
  libclass-accessor-perl 0.33-1
  libcompress-bzip2-perl 2.09-2
  libcompress-raw-bzip2-perl 2.020-0ubuntu1
  libcompress-raw-zlib-perl 2.020-0ubuntu1
  libcompress-zlib-perl 2.020-0ubuntu1
  libdate-calc-perl 5.4-6
  libdate-manip-perl 5.54-1
  libdbd-mysql-perl 4.011-1ubuntu1
  libdbi-perl 1.609-1
  libdigest-hmac-perl 1.01-7
  libdigest-sha1-perl 2.12-1
  liberror-perl 0.17-1
  libfile-tail-perl 0.99.3-3
  libfont-afm-perl 1.20-1
  libgeo-ip-perl 1.38-1
  libgeo-ipfree-perl 0.6-1
  libhtml-format-perl 2.04-2
  libhtml-parser-perl 3.61-1ubuntu0.1
  libhtml-tagset-perl 3.20-2
  libhtml-template-perl 2.9-1
  libhtml-tree-perl 3.23-1
  libio-compress-base-perl 2.020-0ubuntu1
  libio-compress-perl 2.020-0ubuntu1
  libio-compress-zlib-perl 2.020-0ubuntu1
  libio-multiplex-perl 1.10-1
  libio-string-perl 1.08-2
  liblocale-gettext-perl 1.05-4build1
  libmailtools-perl 2.04-1
  libnet-cidr-perl 0.13-1
  libnet-daemon-perl 0.43-1
  libnet-dns-perl 0.65-1
  libnet-ip-perl 1.25-2
  libnet-server-perl 0.97-1ubuntu1
  libnet-snmp-perl 5.2.0-1
  libnet-xwhois-perl 0.90-3
  libparse-debianchangelog-perl 1.1.1-2ubuntu1
  libperl5.10 5.10.0-24ubuntu4
  libplrpc-perl 0.2020-2
  librpc-xml-perl 0.64-1
  librrds-perl 1.3.1-4ubuntu2.1
  libsub-name-perl 0.04-1
  libterm-readkey-perl 2.30-4
  libtext-charwidth-perl 0.04-5build1
  libtext-iconv-perl 1.7-1build1
  libtext-wrapi18n-perl 0.06-7
  libtimedate-perl 1.1600-9
  liburi-perl 1.37+dfsg-1ubuntu1
  libwww-perl 5.831-1
  libxml-parser-perl 2.36-1.1build2
  perl 5.10.0-24ubuntu4
  perl-base 5.10.0-24ubuntu4
  perl-modules 5.10.0-24ubuntu4

  ProblemType: Crash
  Architecture: amd64
  CrashCounter: 1
  Date: Wed May  5 20:40:12 2010
  DistroRelease: Ubuntu 9.10
  ExecutablePath: /usr/share/munin/munin-graph
  InterpreterPath: /usr/bin/perl
  Package: munin 1.2.6-13ubuntu3
  PackageArchitecture: all
  ProcCmdline: /usr/bin/perl -w /usr/share/munin/munin-graph --cron
  ProcEnviron:
   PATH=(custom, no user)
   SHELL=/bin/sh
  ProcVersionSignature: Ubuntu 2.6.31-21.59-server
  SegvAnalysis:
   Segfault happened at: 0x7fbd193426b0:	movzbl (%rdi),%ecx
   PC (0x7fbd193426b0) ok
   source "(%rdi)" (0x061e8510) not located in a known VMA region (needed readable region)!
   destination "%ecx" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: munin
  StacktraceTop:
   ?? () from /usr/lib/libfontconfig.so.1
   ?? () from /usr/lib/libfontconfig.so.1
   FcPatternDestroy () from /usr/lib/libfontconfig.so.1
   ?? () from /lib/libglib-2.0.so.0
   g_hash_table_remove_all () from /lib/libglib-2.0.so.0
  Title: munin-graph crashed with SIGSEGV in FcPatternDestroy()
  Uname: Linux 2.6.31-21-server x86_64
  UserGroups:

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