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Description of problem: Version-Release number of selected component (if applicable): kernel-2.6.18-417.el5.i686 kernel-PAE-devel-2.6.18-417.el5.i686 kernel-devel-2.6.18-417.el5.i686 kernel-PAE-2.6.18-417.el5.i686 redhat-release-5Server-5.11.0.7.i386 kernel-headers-2.6.18-417.el5.i386 tzdata-2016j-1.el5.i386 30:bind-libs-9.3.6-25.P1.el5_11.12.i386 nss-3.21.3-2.el5_11.i386 30:bind-utils-9.3.6-25.P1.el5_11.12.i386 samba3x-winbind-3.6.23-13.el5_11 samba3x-3.6.23-13.el5_11 samba3x-common-3.6.23-13.el5_11 How reproducible: 1. valgrind report confirms leaks. ==00:00:00:01.825 6593== LEAK SUMMARY: ==00:00:00:01.825 6593== definitely lost: 24 bytes in 1 blocks ==00:00:00:01.825 6593== indirectly lost: 260 bytes in 14 blocks ==00:00:00:01.825 6593== possibly lost: 9,527 bytes in 96 blocks ==00:00:00:01.825 6593== still reachable: 3,968 bytes in 82 blocks ==00:00:00:01.825 6593== suppressed: 0 bytes in 0 blocks 2. Also ps command shows "winbind" memory consumption increased over the time. Looking for fix or backport of fix from newer samba. Additional info:
This might be related or even a duplicate of https://bugzilla.redhat.com/show_bug.cgi?id=1364363.
We need valgrind logs with debuginfo packages installed. samba-debuginfo, libtalloc-debuginfo, libtevent-debuginfo, libtdb-debuginfo ... Stop winbind and then use: valgrind --tool=memcheck -v --num-callers=20 --trace-children=yes --log-file=/var /log/winbind-memcheck-%p.log /usr/sbin/winbindd
Created attachment 1265750 [details] valgrind test
I'm sorry, but the valgrind log has been created without samba3x-debuginfo packages installed so the information I get are very limited. However the only issue I see is inside of the openldap library which calls close() on an -1 fd. Also I see only the log from one winbind process. Winbind normally has more than two processes.
Red Hat Enterprise Linux 5 shipped it's last minor release, 5.11, on September 14th, 2014. On March 31st, 2017 RHEL 5 exited Production Phase 3 and entered Extended Life Phase. For RHEL releases in the Extended Life Phase, Red Hat will provide limited ongoing technical support. No bug fixes, security fixes, hardware enablement or root-cause analysis will be available during this phase, and support will be provided on existing installations only. If the customer purchases the Extended Life-cycle Support (ELS), certain critical-impact security fixes and selected urgent priority bug fixes for the last minor release will be provided. For more details please consult the Red Hat Enterprise Linux Life Cycle Page: https://access.redhat.com/support/policy/updates/errata This BZ does not appear to meet ELS criteria so is being closed WONTFIX. If this BZ is critical for your environment and you have an Extended Life-cycle Support Add-on entitlement, please open a case in the Red Hat Customer Portal, https://access.redhat.com ,provide a thorough business justification and ask that the BZ be re-opened for consideration of an errata. Please note, only certain critical-impact security fixes and selected urgent priority bug fixes for the last minor release can be considered.