Three days agao I asked on dbi-users if anyone has seen segmentation
faults with DBI 1.622 when using threads.
http://www.nntp.perl.org/group/perl.dbi.users/2012/10/msg36469.html
A while back I was having problems with segfaults under an older version
of DBI (1.617 IIRC) but that was fixed by bug 77137. Ever since we've
still been seeing segfaults, just not as frequently.
I've been capturing core dumps and running them through gdb. The
backtraces point us to line 3265 in DBI.xs:
if ((i = DBIc_DEBUGIV(imp_xxh))) { /* merge handle into global
*/
I'm using Perl 5.12.3 with DBI 1.622 and DBD::Oracle 1.52. (I've also
confirmed that the same issue occurs under 5.14.2 and 5.16.1.) I have
also tried it with DBI 1.61 and 1.622_091 and they both suffer the same
fate.
I'm attaching the latest full backtrace and including the output from
perl -V for the copy with debugging symbols. What else can I do to help
investigate this issue?
Thanks,
Matt
[root@convnms1 ~]# /opt/perld/perls/perl-5.12.3/bin/perl -V
Summary of my perl5 (revision 5 version 12 subversion 3) configuration:
Platform:
osname=linux, osvers=2.6.18-238.9.1.el5,
archname=x86_64-linux-thread-multi
uname='linux nmsdev2.efjdfw.local 2.6.18-238.9.1.el5 #1 smp tue apr
12 18:10:13 edt 2011 x86_64 x86_64 x86_64 gnulinux '
config_args='-de -Dprefix=/opt/perld/perls/perl-5.12.3 -Dusethreads
-Duselargefiles -Doptimize=-O2 -Doptimize=-g'
hint=recommended, useposix=true, d_sigaction=define
useithreads=define, usemultiplicity=define
useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
use64bitint=define, use64bitall=define, uselongdouble=undef
usemymalloc=n, bincompat5005=undef
Compiler:
cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DDEBUGGING
-fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
optimize='-g',
cppflags='-D_REENTRANT -D_GNU_SOURCE -DDEBUGGING
-fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include'
ccversion='', gccversion='4.1.2 20080704 (Red Hat 4.1.2-46)',
gccosandvers=''
intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678
d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
ivtype='long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t',
lseeksize=8
alignbytes=8, prototype=define
Linker and Libraries:
ld='cc', ldflags =' -fstack-protector -L/usr/local/lib'
libpth=/usr/local/lib /lib /usr/lib /lib64 /usr/lib64 /usr/local/lib64
libs=-lnsl -ldl -lm -lcrypt -lutil -lpthread -lc
perllibs=-lnsl -ldl -lm -lcrypt -lutil -lpthread -lc
libc=/lib/libc-2.5.so, so=so, useshrplib=false, libperl=libperl.a
gnulibc_version='2.5'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
cccdlflags='-fPIC', lddlflags='-shared -g -L/usr/local/lib
-fstack-protector'
Characteristics of this binary (from libperl):
Compile-time options: DEBUGGING MULTIPLICITY PERL_DONT_CREATE_GVSV
PERL_IMPLICIT_CONTEXT PERL_MALLOC_WRAP
PERL_TRACK_MEMPOOL USE_64_BIT_ALL USE_64_BIT_INT
USE_ITHREADS USE_LARGE_FILES USE_PERLIO
USE_PERL_ATOF
USE_REENTRANT_API
Built under linux
Compiled at May 10 2012 19:03:35
%ENV:
PERLLIB="/opt/nms/lib/perl"
@INC:
/opt/nms/lib/perl
/opt/perld/perls/perl-5.12.3/lib/site_perl/5.12.3/x86_64-linux-thread-multi
/opt/perld/perls/perl-5.12.3/lib/site_perl/5.12.3
/opt/perld/perls/perl-5.12.3/lib/5.12.3/x86_64-linux-thread-multi
/opt/perld/perls/perl-5.12.3/lib/5.12.3
.
| Subject: | bt.18749 |
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