I'm afraid I've lost the logs (sorry, forced email cleanup). I
remember seeing a rollback action because an action failed. Would you
mind resending it?
Balbir Singh.
On Tue, Dec 16, 2014 at 9:50 PM, Alexandre LAURENT
<pro.laurent.alexan...@gmail.com> wrote:
> I have continued my investigation about this issue.
> On all machines that I have access, with different kernels : 3.2, 3.5.5,
> 3.14, I have always the same issue.
> I am trying to run the tests available in libcgroups 0.41. TEST17 from
> second pass and TEST25 from third pass are always failing. These tests are
> related to cgroup_get_cgroup().
>
> Can you reproduce and investigate on this, please ?
>
> Best regards,
>
>
> 2014-12-09 17:21 GMT+01:00 Alexandre LAURENT
> <pro.laurent.alexan...@gmail.com>:
>>
>> 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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