Hello,
I am attaching the strace from my program.
This segment appears when I am calling cgroup_get_cgroup() :
access("/cgroup/freezer/grp_1", F_OK) = 0
stat("/cgroup/freezer/grp_1//tasks", {st_mode=S_IFREG|0644, st_size=0,
...}) = 0
gettid() = 18300
write(2, "E1209 16:57:17.328337 18300 cgro"..., 108) = 108
(gettid() and write() calls are coming from my logger.)
Thanks for your help,
2014-12-08 18:52 GMT+01:00 Balbir Singh <bsinghar...@gmail.com>:
> Thanks.. we need the strace logs for the run
>
> Balbir Singh.
>
> On Mon, Dec 8, 2014 at 10:34 PM, Alexandre LAURENT
> <pro.laurent.alexan...@gmail.com> wrote:
> > As far as I know, yes, it is compiled. Memory controller is normally
> mounted
> > in /cgroup/ and all files are present.
> > Here my kernel config :
> >
> > CONFIG_CGROUPS=y
> > # CONFIG_CGROUP_DEBUG is not set
> > CONFIG_CGROUP_FREEZER=y
> > CONFIG_CGROUP_DEVICE=y
> > CONFIG_CGROUP_CPUACCT=y
> > CONFIG_CGROUP_MEM_RES_CTLR=y
> > CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y
> > # CONFIG_CGROUP_MEM_RES_CTLR_SWAP_ENABLED is not set
> > CONFIG_CGROUP_PERF=y
> > CONFIG_CGROUP_SCHED=y
> > CONFIG_BLK_CGROUP=y
> > # CONFIG_DEBUG_BLK_CGROUP is not set
> > CONFIG_NET_CLS_CGROUP=y
> >
> > If I disable memory controller everything will work fine with all other
> > controllers. But, when enabling again memory controller, I have problems
> > getting some files like freezer.state or memory.failctn. I guess this is
> > because of the failure of cgroup_get_cgroup().
> >
> > Am I missing something ?
> >
> > Best regards,
> >
> >
> > 2014-12-08 11:32 GMT+01:00 Balbir Singh <bsinghar...@gmail.com>:
> >>
> >> On Mon, Dec 8, 2014 at 3:52 PM, Alexandre LAURENT
> >> <pro.laurent.alexan...@gmail.com> wrote:
> >> > Hello,
> >> >
> >> > I am using libcg 0.41 and Linux Kernel 3.2.0.4 (AMD 64) on Debian 7.
> >> > When I am using memory controller (and some others) through the
> >> > following
> >> > config file :
> >> > ---
> >> > mount {
> >> > cpu = /cgroup/cpu;
> >> > freezer = /cgroup/freezer;
> >> > net_cls = /cgroup/net_cls;
> >> > blkio = /cgroup/blkio;
> >> > memory = /cgroup/memory;
> >> > }
> >> > ---
> >> >
> >> > the cgroup_get_cgroup() function is returning an error "Cgroup invalid
> >> > operation".
> >> > The error seems to be emitted from cgroup_add_controller() which will
> >> > return on this case :
> >> > /*
> >> > * Still not sure how to handle the failure here.
> >> > */
> >> > for (i = 0; i < cgroup->index; i++) {
> >> > if (strncmp(name, cgroup->controller[i]->name,
> >> > sizeof(cgroup->controller[i]->name)) == 0)
> >> > {
> >> > return NULL;
> >> > }
> >> > }
> >> >
> >> >
> >> > When commenting the memory controller line, the error disappear.
> >> > I have also tried to output all debug messages available in libcg, but
> >> > none
> >> > of these seems related to this issue.
> >> >
> >> > What can cause this issue ?
> >>
> >> Is memory cgroup compiled?
> >>
> >> Balbir Singh.
> >
> >
>
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