Red Hat Bugzilla – Bug 961646
user(s) processes are not moved into the group at login time + cgred restart segfault
Last modified: 2014-08-04 08:06:41 EDT
Description of problem: it seems cgred service starts at boot but each subsequent restart results in segfault also, more! importantly processes initiated by a user declared in rules are not being acted upon when user logins in Version-Release number of selected component (if applicable): libcgroup-0.37-7.el6.x86_64 pam-1.1.1-13.el6.x86_64 2.6.32-358.2.1.el6.x86_64 How reproducible: mount { cpu = /cgroup/cpu; cpuset = /cgroup/cpuset; cpuacct = /cgroup/cpuacct; memory = /cgroup/memory; devices = /cgroup/devices; freezer = /cgroup/freezer; net_cls = /cgroup/net_cls; blkio = /cgroup/blkio; } group . { perm { task { uid = root; gid = root; } admin { uid = root; gid = root; } } } group limit { memory { memory.limit_in_bytes = 15G; } cpuset { cpuset.cpus = "5"; cpuset.mems = 0; } } and aUser memory,cpuset limit/ Steps to Reproduce: 1. 2. 3. Actual results: declared users are not confined/controlled Expected results: when user logs in all processes should be move into the cgroup Additional info:
cgrulesengd[4202]: segfault at 0 ip 000000345b081321 sp 00007fffbbe2a168 error 4 in libc-2.12.so[345b000000+18a000]
libcgroup-0.37-7.1.el6.x86_64 seems to fix above problem but! at boot time services fail, both Starting cgconfig service: Failed to parse /etc/cgconfig.conf[FAILED] and naturally Starting CGroup Rules Engine Daemon: Cannot find cgroups, is cgconfig service running?[FAILED] only to start fine at very first manual service start ?
*** Bug 961648 has been marked as a duplicate of this bug. ***
lejeczek, please, can you try this build? https://dl.dropboxusercontent.com/u/15321270/libcgroup-0.37-10.el6.x86_64.rpm https://dl.dropboxusercontent.com/u/15321270/libcgroup-devel-0.37-10.el6.x86_64.rpm https://dl.dropboxusercontent.com/u/15321270/libcgroup-pam-0.37-10.el6.s390x.rpm https://dl.dropboxusercontent.com/u/15321270/libcgroup-debuginfo-0.37-10.el6.s390x.rpm Also, if the error still persists, modify the /etc/init.d/cgconfig file on line 132: - $CGCONFIGPARSER_BIN -l $CONFIG_FILE + export CGROUP_LOGLEVEL=DEBUG + $CGCONFIGPARSER_BIN -l $CONFIG_FILE > /tmp/cglog reboot the machine and attach here /tmp/cglog file. (You might need to temporarily disable selinux if /tmp/cglog file is empty after reboot.) Thanks, peter
ping lejeczek, is this still relevant?
nope, segfault got fixed, later only cgred restart after system start was needed as user db (slapd backend) wasn't picked up by cgroups. So on my systems no segfaults now and later (as per my other bugreport) slapd & cgred services initd was reordered.
So segfault is fixed and moving processes into groups during logging is reported in BZ1126003. Then closing as fixed in rhel6.6.