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[Bernie Innocenti <bernie@xxxxxxxxxxx>]

I'm still seeing this exact same crash with bash_4.3-7ubuntu1. In fact,
I also see it with a bash binary built from the upstream git (bash 4.3
patch 18).

This is the stack trace I'm getting:


codewiz@xyzzy:~$ 

malloc: unknown:0: assertion botched
free: called with unallocated block argument
last command: ll webserver/sffe/config/sffe_config.proto
Aborting...
Program received signal SIGABRT, Aborted.
0x00007ffff761df79 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
56	../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt
#0  0x00007ffff761df79 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1  0x00007ffff7621388 in __GI_abort () at abort.c:89
#2  0x000000000044051f in programming_error ()
#3  0x00000000004b3bff in internal_free.isra ()
#4  0x00000000004ae1ac in _rl_revert_all_lines ()
#5  0x0000000000495035 in readline_internal_teardown ()
#6  0x0000000000495f56 in readline ()
#7  0x000000000042158a in yy_readline_get ()
#8  0x0000000000423716 in shell_getc ()
#9  0x00000000004265f2 in read_token.constprop ()
#10 0x0000000000429bd4 in yyparse ()
#11 0x0000000000420e9b in parse_command ()
#12 0x0000000000420f6c in read_command ()
#13 0x0000000000421169 in reader_loop ()
#14 0x000000000041f749 in main ()
(gdb)

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https://bugs.launchpad.net/bugs/1294669

Title:
  bash crashed with SIGABRT in programming_error()

Status in “bash” package in Ubuntu:
  Fix Released
Status in “bash” source package in Trusty:
  Fix Released

Bug description:
  [Test Case]
  bdmurray@blacklightning:~$ x!
  x!: command not found
  bdmurray@blacklightning:~$ x!

  malloc: .././parse.y:2314: assertion botched
  realloc: start and end chunk sizes differ
  last command: x!
  Aborting...Aborted (core dumped)

  [Regression Potential]
  Low, this patch has been applied upstream.

  bash just died under me, I think I was just doing cursor up to get a
  previous command and it segfaulted.  This has happened several times
  this week and is getting annoying

  ProblemType: CrashDistroRelease: Ubuntu 14.04
  Package: bash 4.3-2ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-16.36-lowlatency 3.13.5
  Uname: Linux 3.13.0-16-lowlatency x86_64
  ApportVersion: 2.13.3-0ubuntu1
  Architecture: amd64
  CrashCounter: 1
  CurrentDesktop: Unity
  Date: Wed Mar 19 14:08:22 2014
  EcryptfsInUse: Yes
  ExecutablePath: /bin/bash
  InstallationDate: Installed on 2013-12-09 (99 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20131209)
  ProcCmdline: bash
  Signal: 6SourcePackage: bash
  StacktraceTop:
   programming_error ()
   ?? ()
   sh_xrealloc ()
   ?? ()
   ?? ()
  Title: bash crashed with SIGABRT in programming_error()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sbuild sudo

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