Enabling core dumps on SLP 9.0 i386 Solved
After a great deal of searching I was able to determine and fix the inability to get core dumps in SLP 9.0 under a KDM login. Evidently, gpg-agent plays some role in a KDM login, what I am not sure but it explicitly disables core dumps in it's main function. I was able to build a new version of /usr/bin/gpg-agent from package newpg-0.9.4-119 using it's source RPM and build(1). It is missing several dependencies for the build if BUILD_ROOT is set in your environment. If you do not set BUILD_ROOT it uses /var/tmp and does not have any missing dependencies. I have included the changes needed to gpg-agent.c and instructions for building a new /usr/bin/gpg-agent. which is just commenting out the call to: #if notdef may_coredump = disable_core_dumps (); #endif in agent/gpg-agent.c Also note, you must comment out the following in /etc/profile: #ulimit -Sc 0 # don't create core files Perhaps ULB or someone will be kind enough to create a package. Maybe SuSE will fix it. Best Regards. ================== Install the source rpm package for newpg-0.9.4-119 from the YaST via Yast2->Software->Install and Remove Software and searching for newpg. Check the source checkbox (scrolled off the screen).Install and Remove Software and searching for newpg. Check the source checkbox (scrolled off the screen). Push the accept button. It will tell you which disc to get source from or to turnover the DVD disc if you have the DVD. Now as root create a temporary directory and cd to it. # mkdir temp # cd temp # cp /usr/src/packages/SOURCES/die-with-parent.diff . # cp /usr/src/packages/SOURCES/newpg-0.9.4.tar.bz2 . # cp /usr/src/packages/SPECS/newpg.spec . Now manually mount the install disc, mine goes to /media/dvd # mount /media/dvd # build newpg.spec If you have never done this before it uses /var/tmp by default. This directory is normally clean on reboot so you lose everything. Make sure you have enough disk space free as build uses a chroot(1)ed environment. I have the environmental variable BUILD_ROOT set to "/build" on my system but for this discussion I will use /var/tmp as if BUILD_ROOT was not set. The build copies all sorts of libraries and executeables from install system to the chroot(1)ed environment. This will take several minutes. After the build finishes if no packages were missing then: If unset use /var/tmp in place of ${BUILD_ROOT) # cp ../newgpg-agent.c ${BUILD_ROOT}/buildroot//usr/src/packages/BUILD/newpg-0.9.4/agent/gpg-agent.c # cd ${BUILD_ROOT}/buildroot//usr/src/packages/BUILD/newpg-0.9.4 # make # cp agent/gpg-agent /usr/bin/gpg-agent Reboot and you will be able to get coredumps. ================== -- _/_/_/ Bob Pearson gottadoit@mailsnare.net _/_/_/ "The best way to get information on Usenet is not to ask a _/_/_/ question, but to post the wrong information." - Aahz' Law
May be there's a _reason_ for gpg disabling core dumps. Maybe it has to do with protecting cryptographic key information from being found in a core dump file. Just my $0.02. -Dennis On Tuesday 20 January 2004 16:09, Bob Pearson wrote:
After a great deal of searching I was able to determine and fix the inability to get core dumps in SLP 9.0 under a KDM login. Evidently, gpg-agent plays some role in a KDM login, what I am not sure but it explicitly disables core dumps in it's main function.
I was able to build a new version of /usr/bin/gpg-agent from package newpg-0.9.4-119 using it's source RPM and build(1). It is missing several dependencies for the build if BUILD_ROOT is set in your environment. If you do not set BUILD_ROOT it uses /var/tmp and does not have any missing dependencies. I have included the changes needed to gpg-agent.c and instructions for building a new /usr/bin/gpg-agent.
which is just commenting out the call to:
#if notdef may_coredump = disable_core_dumps (); #endif
in agent/gpg-agent.c
Also note, you must comment out the following in /etc/profile: #ulimit -Sc 0 # don't create core files
Perhaps ULB or someone will be kind enough to create a package. Maybe SuSE will fix it.
Best Regards. ================== Install the source rpm package for newpg-0.9.4-119 from the YaST via Yast2->Software->Install and Remove Software and searching for newpg. Check the source checkbox (scrolled off the screen).Install and Remove Software and searching for newpg. Check the source checkbox (scrolled off the screen). Push the accept button. It will tell you which disc to get source from or to turnover the DVD disc if you have the DVD.
Now as root create a temporary directory and cd to it.
# mkdir temp # cd temp # cp /usr/src/packages/SOURCES/die-with-parent.diff . # cp /usr/src/packages/SOURCES/newpg-0.9.4.tar.bz2 . # cp /usr/src/packages/SPECS/newpg.spec .
Now manually mount the install disc, mine goes to /media/dvd
# mount /media/dvd # build newpg.spec
If you have never done this before it uses /var/tmp by default. This directory is normally clean on reboot so you lose everything. Make sure you have enough disk space free as build uses a chroot(1)ed environment. I have the environmental variable BUILD_ROOT set to "/build" on my system but for this discussion I will use /var/tmp as if BUILD_ROOT was not set.
The build copies all sorts of libraries and executeables from install system to the chroot(1)ed environment. This will take several minutes. After the build finishes if no packages were missing then:
If unset use /var/tmp in place of ${BUILD_ROOT)
# cp ../newgpg-agent.c ${BUILD_ROOT}/buildroot//usr/src/packages/BUILD/newpg-0.9.4/agent/gpg-agent .c # cd ${BUILD_ROOT}/buildroot//usr/src/packages/BUILD/newpg-0.9.4 # make # cp agent/gpg-agent /usr/bin/gpg-agent
Reboot and you will be able to get coredumps.
================== -- _/_/_/ Bob Pearson gottadoit@mailsnare.net _/_/_/ "The best way to get information on Usenet is not to ask a _/_/_/ question, but to post the wrong information." - Aahz' Law
participants (2)
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Bob Pearson -
Dennis Spathis