Hello,
thanks for the bug report. This problem should be fixed in the upstream git
now. Please could you test it?
Ivana Hutarova Varekova
----- Original Message -----
> From: "James Braid" <jam...@loreland.org>
> To: libcg-devel@lists.sourceforge.net
> Sent: Thursday, March 14, 2013 10:32:06 PM
> Subject: [Libcg-devel] cgrules templates crashing
>
> Hi, firstly, apologies if this is the wrong mailing list for this kind
> of question.
>
> I'm attempting to use the new template functionality in
> cgrulesengd/cgrules.conf, but I can't past these crashes in the daemon
> when it starts up.
>
> I'm using libcg from git, commit
> d9d799ce72f7a6bc4f5c408b05ed682387ce971e. This is running on top of RHEL
> 6.3.
>
> I'm using the following config:
>
> $ cat /etc/cgrules.conf
> #* cpu testing
> * cpu testing/%u/
>
> $ cat /etc/cgconfig.conf
> mount {
> cpuset = /cgroup/cpuset;
> cpu = /cgroup/cpu;
> cpuacct = /cgroup/cpuacct;
> memory = /cgroup/memory;
> devices = /cgroup/devices;
> freezer = /cgroup/freezer;
> net_cls = /cgroup/net_cls;
> blkio = /cgroup/blkio;
> }
>
> group testing {
> cpu {
> cpu.shares = "250";
> }
> }
>
> template testing/%u/ {
> cpu {
> cpu.shares = "250";
> }
> }
>
> Running cgrulesengd results in the following crash:
>
> MALLOC_CHECK_=2 ./src/daemon/cgrulesengd -g cgred -d
>
> (gdb) where
> #0 0x00007f5e264ee885 in raise () from /lib64/libc.so.6
> #1 0x00007f5e264f0065 in abort () from /lib64/libc.so.6
> #2 0x00007f5e265312c0 in malloc_printerr () from /lib64/libc.so.6
> #3 0x00007f5e26c7f219 in cgroup_free_controllers
> (cgroup=0x7f5e27261010) at wrapper.c:106
> #4 0x00007f5e26c7c6a9 in cgroup_free_config () at config.c:950
> #5 0x00007f5e26c7cb65 in cgroup_reload_cached_templates
> (pathname=0x7f5e26c80fd3 "/etc/cgconfig.conf")
> at config.c:1441
> #6 0x00007f5e26c7cbbe in cgroup_config_create_template_group
> (cgroup=0x150edc0, template_name=0x14ff7d0 "testing/%u",
> flags=0) at config.c:1530
> #7 0x00007f5e26c7c2f7 in cgroup_create_template_group (uid=0, gid=0,
> procname=0x14ff790 "/sbin/init", pid=1, flags=0)
> at api.c:2795
> #8 cgroup_change_cgroup_flags (uid=0, gid=0, procname=0x14ff790
> "/sbin/init", pid=1, flags=0) at api.c:2983
> #9 0x00007f5e26c7c4bb in cgroup_change_all_cgroups () at api.c:3095
> #10 0x00000000004030fa in main (argc=<value optimized out>,
> argv=0x7fff1aa40e08) at cgrulesengd.c:1175
>
> If I remove the trailing slashes from the template paths, I get a
> different crash:
>
> #0 cgroup_create_template_group (uid=0, gid=0, procname=0x1eb3790
> "/sbin/init", pid=1, flags=0) at api.c:2816
> 2816 if (template_position[0] == '\0')
> (gdb) where
> #0 cgroup_create_template_group (uid=0, gid=0, procname=0x1eb3790
> "/sbin/init", pid=1, flags=0) at api.c:2816
> #1 cgroup_change_cgroup_flags (uid=0, gid=0, procname=0x1eb3790
> "/sbin/init", pid=1, flags=0) at api.c:2983
> #2 0x00007fa2dc5cf4bb in cgroup_change_all_cgroups () at api.c:3095
> #3 0x00000000004030fa in main (argc=<value optimized out>,
> argv=0x7fffedb3a8f8) at cgrulesengd.c:1175
>
> Do I need any extra patches on top of current git to test this
> functionality?
>
> Thanks, James
>
>
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