Bug 127416

Summary:	Segfault in mc when trying to connect to samba share
Product:	Gentoo Linux	Reporter:	Sasha Polonsky <apl>
Component:	Current packages	Assignee:	Heinrich Wendel (RETIRED) <lanius>
Status:	VERIFIED TEST-REQUEST
Severity:	normal
Priority:	High
Version:	2006.0
Hardware:	AMD64
OS:	Other
Whiteboard:
Package list:		Runtime testing required:	---
Bug Depends on:
Bug Blocks:	122768
Attachments:	Just after segfault Screenshot with gdb bt output Strace log

Description Sasha Polonsky 2006-03-24 05:11:23 UTC

I have compiled Midnight Commander with Samba support on Intel Xeon (EMT64), and
every time I try to connect to samba share (Esc 9 -> Left -> SMB Link..., enter
//server/share, then login, password and Windows Domain), mc dies with Segmentation Fault. I've also seen this bug on Athlon AMD64 CPU. 

ctrl ~ # emerge --info
Portage 2.0.54 (default-linux/amd64/2006.0, gcc-3.4.4, glibc-2.3.5-r2, 2.6.15-gentoo-r5 x86_64)
=================================================================
System uname: 2.6.15-gentoo-r5 x86_64 Intel(R) Xeon(TM) CPU 3.20GHz
Gentoo Base System version 1.6.14
dev-lang/python:     2.3.5-r2, 2.4.2
sys-apps/sandbox:    1.2.12
sys-devel/autoconf:  2.13, 2.59-r6
sys-devel/automake:  1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r1
sys-devel/binutils:  2.16.1
sys-devel/libtool:   1.5.22
virtual/os-headers:  2.6.11-r2
ACCEPT_KEYWORDS="amd64"
AUTOCLEAN="yes"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -pipe -march=nocona"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config /usr/share/config /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d"
CXXFLAGS="-O2 -pipe -march=nocona"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoconfig distlocks sandbox sfperms strict"
GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo"
MAKEOPTS="-j8"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="amd64 apache2 berkdb bzip2 cli crypt ctype dba dri expat fastbuild force-cgi-redirect fortran ftp gd idn java jpeg junit memlimit mysql ncurses pam pcre perl png posix python readline samba session simplexml soap sockets spl ssl tcpd tokenizer truetype udev userlocales xml xsl zlib userland_GNU kernel_linux elibc_glibc"
Unset:  ASFLAGS, CTARGET, LANG, LC_ALL, LDFLAGS, LINGUAS, PORTDIR_OVERLAY

Comment 1 Jakub Moc (RETIRED) gentoo-dev

2006-03-24 05:16:36 UTC

Reopen with some debugging info, please...

http://www.gentoo.org/doc/en/bugzilla-howto.xml#doc_chap3

Comment 2 Sasha Polonsky 2006-03-24 06:04:21 UTC

Created attachment 83005 [details]
Just after segfault

Comment 3 Sasha Polonsky 2006-03-24 06:04:58 UTC

Created attachment 83006 [details]
Screenshot with gdb bt output

Comment 4 Sasha Polonsky 2006-03-24 06:06:01 UTC

Created attachment 83007 [details]
Strace log

Comment 5 Sasha Polonsky 2006-03-24 06:07:06 UTC

Additional info attached

Comment 6 Jakub Moc (RETIRED) gentoo-dev

2006-04-23 13:13:56 UTC

Please, try w/ 4.6.1 and report back. Thanks.

Comment 7 Sasha Polonsky 2006-04-25 09:04:04 UTC

It works. I did not carry out extensive testing - just connected to 2-3 samba shares on both Athlon 64 machine and Intel Xeon with EMT64 support machine - and transfered a pair of files and directories from samba shares. No segfaults anymore. So we can consider the bug fixed.

It'd also be nice if you incorporate a fix for this bug - http://bugs.gentoo.org/show_bug.cgi?id=127411 - into mc 4.6.1.