BKchem using python2.6 crashed with SIGSEGV in Tcl_CreateHashEntry()

[Matthias Mailänder]

Binary package hint: bkchem

Whenever I click "file-properties", "info" or "options" (all of them open a new window) I get a segmentation fault on Ubuntu 9.04 using BKchem 12.2 (tried 0.12.6, 0.12.5, 0.12.4, 0.13.0 too).

ProblemType: Crash
Architecture: i386
Dependencies:
 libgcc1 1:4.3.3-5ubuntu4
 zlib1g 1:1.2.3.3.dfsg-12ubuntu2
 gcc-4.3-base 4.3.3-5ubuntu4
 findutils 4.4.0-2ubuntu4
 libc6 2.9-4ubuntu6
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/bin/python2.6
Package: python2.6-minimal 2.6.2-0ubuntu1
ProcCmdline: python -m bkchem/bkchem
ProcEnviron:
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: python2.6
StacktraceTop:
 ?? () from /usr/lib/libtcl8.5.so.0
 Tcl_CreateHashEntry () from /usr/lib/libtcl8.5.so.0
 Tcl_FindHashEntry () from /usr/lib/libtcl8.5.so.0
 Tcl_FindNamespaceVar () from /usr/lib/libtcl8.4.so.0
 TclLookupSimpleVar () from /usr/lib/libtcl8.4.so.0
Title: python2.6 crashed with SIGSEGV in Tcl_CreateHashEntry()
Uname: Linux 2.6.28-11-generic i686
UserGroups: adm admin audio cdrom dialout dip fax floppy fuse lpadmin mythtv plugdev sambashare scanner tape video

[Matthias Mailänder (mailaender)]

This is just an apport crash report for https://savannah.nongnu.org/bugs/index.php?26622

[Matthias Mailänder (mailaender)]

We tracked down the error. If there is an older version of Tcl (8.4) in the system which conflicts with the new 8.5 version then BKchem crashes. So the package tk8.4 could be added to the bkchem debian package as a conflict.

[Daniel Leidert (dleidert-deactivatedaccount)]

These reports are IMO all related and the culprit seems to be blt (via python-pmw):

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=525860
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=524149
https://bugs.launchpad.net/ubuntu/+source/blt/+bug/359857

I'm not in favor of introducing a conflicts-relationship, just because a package has bugs.

[Daniel Leidert (dleidert-deactivatedaccount)]

Other reported crashes for bkchem are reproducible in this scenario too and have been marked as duplicates of this report.

[Apport retracing service (apport)]

StacktraceTop:HashVarKey (tablePtr=0x96ed098, keyPtr=0xb66194ef)
Tcl_CreateHashEntry (tablePtr=0x96ed098,
Tcl_FindHashEntry (tablePtr=0x96ed098,
Tcl_FindNamespaceVar (interp=0x96f2a08,
TclLookupSimpleVar (interp=0x96f2a08,

[newbuntu (dsglass)]

Matthias Mailänder: Thanks, I removed tk8.4 and that fixed the problem. Both tk8.4 and tk8.5 were installed.

[Daniel Leidert (dleidert-deactivatedaccount)]

Can be fixed by applying the patch from https://bugs.launchpad.net/ubuntu/+source/blt/+bug/359857/comments/2 to blt.

[Harbin (harbin)]

I confirm that the patch above works on Ubuntu 9.10.

Made following modifications to /usr/lib/blt2.4/pkgIndex.tcl file:

if {[package vcompare [info tclversion] 8.2] < 0} {
 set taillib ${version}.so.8.0
} elseif {[package vcompare [info tclversion] 8.3] < 0} {
 set taillib ${version}.so.8.2
} elseif {[package vcompare [info tclversion] 8.4] < 0} {
 set taillib ${version}.so.8.3
} elseif {[package vcompare [info tclversion] 8.5] < 0} {
 set taillib ${version}.so.8.4
} else {
 set taillib ${version}.so.8.5
}

Sorry for not sending a diff, that one should do.

[Daniel Leidert (dleidert-deactivatedaccount)]

Fixed in blt 2.4z-4.2.