"git bisect" dies with SIGSEGV

$ git version                                       
git version 2.3.5_os390_b013
$ git bisect start HEAD 4471995 --                                   
CEE5203S The signal SIGSEGV was received.
error: git-bisect died of signal 11

Hi Stephan,
I cannot reproduce this error in my environment with same git version.
Could you please provide us with env | sort command output so we can investigate it.
Thanks,
Dan.

$ git version                                       
git version 2.3.5_os390_b013
$ git bisect start HEAD 4471995 --                                   
CEE5203S The signal SIGSEGV was received.
error: git-bisect died of signal 11

Hi Dan,

thanks for taking a look at this.

This is the output of env | sort:

ATSHOSTNAME=zpdt
GIT_EXEC_PATH=/usr/local/libexec/git-core
GIT_SHELL=/usr/local/bin/bash
GIT_SSH=/bin/ssh
GIT_TEMPLATE_DIR=/usr/local/share/git-core/templates
HOME=/u/ibmuser
HOSTNAME=zpdt2
INFOPATH=:/usr/local/share/info/
LANG=C
LIBPATH=/lib:/usr/lib:.
LOGNAME=IBMUSER
M4=/usr/local/bin/m4
MAIL=/usr/mail/IBMUSER
MANPATH=/usr/man/%L:/usr/local/man:/usr/local/share/man/
NLSPATH=/usr/lib/nls/msg/%L/%N:/usr/lib/nls/msg/%L/%N.cat
OLDPWD=/u/ibmuser
PAGER=less
PATH=/usr/local/bin:/usr/lpp/java/J6.0.1/bin:/bin:.::/usr/local/bin
PERL5LIB=/usr/local/lib/perl5:/usr/local/lib/perl5
PERl5LIB=/usr/local/lib/perl5:/usr/local/lib/perl5:/usr/local/perl-5.16.2/lib
PS1=\\[\\e]0;zpdt2[${VIEW}]: \\w\\a\\]zpdt2 ($shell_level) $
PWD=/u/ibmuser/tmp/stm/openssl
SAVE_LIBPATH=/lib:/usr/lib:.
SAVE_PATH=/usr/local/bin:/usr/lpp/java/J6.0.1/bin:/bin:.::/usr/local/bin
SHELL=/usr/local/bin/bash
SHLVL=1
SSH_AUTH_SOCK=/tmp/ssh-vFVgLnsdHP/agent.83951692
SSH_CLIENT=192.168.4.106 65272 22
SSH_CONNECTION=192.168.4.106 65272 192.168.4.208 22
SSH_TTY=/dev/ttyp0000
STEPLIB=CBC.SCCNCMP
TERM=xterm
TMPDIR=/usr/local/tmp
TZ=CET-1
USER=IBMUSER
_=/bin/env
_BPXK_AUTOCVT=ON
_CEE_RUNOPTS=FILETAG(AUTOCVT,AUTOTAG) POSIX(ON)
_TAG_REDIR_ERR=txt
_TAG_REDIR_IN=txt
_TAG_REDIR_OUT=txt
shell_level=1

Here’s also the output of the git bisect command with tracing turned on:

08:22:07.141200 ./git.c:560             trace: exec: 'git-bisect' 'start' 'HEAD' '4471995' '--'
08:22:07.141559 ./run-command.c:369     trace: run_command: 'git-bisect' 'start' 'HEAD' '4471995' '--'
08:22:07.212366 ./run-command.c:131     trace: execvp: 'git-bisect' 'start' 'HEAD' '4471995' '--'
08:22:08.065485 ./git.c:351             trace: built-in: git 'rev-parse' '--git-dir'
08:22:08.300613 ./git.c:351             trace: built-in: git 'rev-parse' '--show-cdup'
08:22:08.667969 ./git.c:351             trace: built-in: git 'rev-parse' '--sq-quote' 'HEAD' '4471995' '--'
08:22:08.841416 ./git.c:351             trace: built-in: git 'rev-parse' '--is-bare-repository'
08:22:09.026059 ./git.c:351             trace: built-in: git 'rev-parse' '-q' '--verify' 'HEAD^{commit}'
08:22:09.712469 ./git.c:351             trace: built-in: git 'rev-parse' '-q' '--verify' '4471995^{commit}'
08:22:11.967280 ./git.c:351             trace: built-in: git 'symbolic-ref' '-q' 'HEAD'
08:22:12.162699 ./git.c:351             trace: built-in: git 'for-each-ref' '--format=%(refname) %(objectname)' 'refs/bisect/*'
08:22:13.272426 ./git.c:351             trace: built-in: git 'update-ref' '-d' '--no-deref' 'BISECT_HEAD'
08:22:13.630822 ./git.c:351             trace: built-in: git 'for-each-ref' '--format=%(refname) %(objectname)' 'refs/bisect/*'
08:22:14.726756 ./git.c:351             trace: built-in: git 'update-ref' '-d' '--no-deref' 'BISECT_HEAD'
CEE5203S The signal SIGSEGV was received.
error: git-bisect died of signal 11

$ git version                                       
git version 2.3.5_os390_b013
$ git bisect start HEAD 4471995 --                                   
CEE5203S The signal SIGSEGV was received.
error: git-bisect died of signal 11

Stephan,
to exclude the influence of the environment I suggest you to change your paths and git placement in accordance with README.ZOS file. Especially noticeable PERL5LIB path to lesser version (5.16.2) than we’re providing with git 2.3.5 (5.24.0).
README.ZOS could be found at:
git-2.3.5_b013.161229.tar.gz/share/doc/git/2.3.5/
Perl lib could be found at:
git-2.3.5_b013.161229.tar.gz/lib/perl5/5.24.0/

Thanks,
Dan.

$ git version                                       
git version 2.3.5_os390_b013
$ git bisect start HEAD 4471995 --                                   
CEE5203S The signal SIGSEGV was received.
error: git-bisect died of signal 11

Dan,

thank you for the hint about the environment. I cannot easily change this setup now.

But does git depend on perl at all? I’m asking because even if I unset the PERL5LIB variable, the crash still occurs.

Hi Stephan,
We are not able to reproduce the problem. I have created an internal ticket for this problem, we will try to find a reason, why this error occurs.

Thanks,
Tatyana