Re: lttng start error

Re: lttng start error

[Jérémie Galarneau]

On Thu, May 30, 2013 at 12:32 PM, Zheng Da <zhengda1936@gmail.com> wrote:
> Hello,
>
> I just started to use lttng. I use Ubuntu 12.04 and the kernel version
> 3.8.12. I use a customized kernel, so the lttng package in ubuntu
> can't be installed correctly. I built lttng 2.0 myself.

Did you build only the lttng-modules or the complete toolchain
(lttng-tools, lttng-ust, lttng-modules)? Which versions of the
different packages are you using?

Thanks,
Jérémie

>
> Then I followed the steps in https://lttng.org/quickstart. When I run
> lttng start, I got the errors:
> root@ubuntu:~# lttng start
> PERROR: sendmsg: Bad file descriptor [in lttcomm_send_unix_sock() at
> sessiond-comm.c:311]
> PERROR: send consumer channel: Bad file descriptor [in
> send_kconsumer_session_streams() at main.c:636]
> PERROR: ioctl start session: No buffer space available [in
> kernel_start_session() at kernel.c:397]
> Error: Starting kernel trace failed
>
> Someone said in the mailing list that this problem may have something
> to do with memory limit. But it shouldn't be my case as my machine has
> 512GB memory.
>
> Can anyone help me troubleshoot the problem?
>
> Thanks,
> Da
>
> _______________________________________________
> lttng-dev mailing list
> lttng-dev@lists.lttng.org
> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev



-- 
Jérémie Galarneau
EfficiOS Inc.
http://www.efficios.com

Re: lttng start error

[Zheng Da]

Hello,

I built lttng-modules-2.0.6, lttng-tools-2.0.5 and lttng-ust-2.0.6.

Best,
Da

On Thu, May 30, 2013 at 1:14 PM, Jérémie Galarneau
<jeremie.galarneau@efficios.com> wrote:
> On Thu, May 30, 2013 at 12:32 PM, Zheng Da <zhengda1936@gmail.com> wrote:
>> Hello,
>>
>> I just started to use lttng. I use Ubuntu 12.04 and the kernel version
>> 3.8.12. I use a customized kernel, so the lttng package in ubuntu
>> can't be installed correctly. I built lttng 2.0 myself.
>
> Did you build only the lttng-modules or the complete toolchain
> (lttng-tools, lttng-ust, lttng-modules)? Which versions of the
> different packages are you using?
>
> Thanks,
> Jérémie
>
>>
>> Then I followed the steps in https://lttng.org/quickstart. When I run
>> lttng start, I got the errors:
>> root@ubuntu:~# lttng start
>> PERROR: sendmsg: Bad file descriptor [in lttcomm_send_unix_sock() at
>> sessiond-comm.c:311]
>> PERROR: send consumer channel: Bad file descriptor [in
>> send_kconsumer_session_streams() at main.c:636]
>> PERROR: ioctl start session: No buffer space available [in
>> kernel_start_session() at kernel.c:397]
>> Error: Starting kernel trace failed
>>
>> Someone said in the mailing list that this problem may have something
>> to do with memory limit. But it shouldn't be my case as my machine has
>> 512GB memory.
>>
>> Can anyone help me troubleshoot the problem?
>>
>> Thanks,
>> Da
>>
>> _______________________________________________
>> lttng-dev mailing list
>> lttng-dev@lists.lttng.org
>> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
>
>
>
> --
> Jérémie Galarneau
> EfficiOS Inc.
> http://www.efficios.com

Re: lttng start error

[Jérémie Galarneau]

Hi Zeng,

Just tried the 2.0 release on a Ubuntu-12.04 VM and I could not
reproduce your problem. Any chance you have installed different
versions of LTTng (either built from source or from your package
manager)?

root@ubuntu1204-32:/home/jgalar# sudo lttng create
Spawning a session daemon
Warning: No tracing group detected
Session auto-20130603-220050 created.
Traces will be written in /root/lttng-traces/auto-20130603-220050
root@ubuntu1204-32:/home/jgalar# sudo lttng enable-event -k -a
All kernel events are enabled in channel channel0
root@ubuntu1204-32:/home/jgalar# sudo lttng start
Tracing started for session auto-20130603-220050
root@ubuntu1204-32:/home/jgalar# sudo lttng stop
Tracing stopped for session auto-20130603-220050

That produces a readable trace here.

Regards,
Jérémie

On Thu, May 30, 2013 at 3:05 PM, Zheng Da <zhengda1936@gmail.com> wrote:
> Hello,
>
> I built lttng-modules-2.0.6, lttng-tools-2.0.5 and lttng-ust-2.0.6.
>
> Best,
> Da
>
> On Thu, May 30, 2013 at 1:14 PM, Jérémie Galarneau
> <jeremie.galarneau@efficios.com> wrote:
>> On Thu, May 30, 2013 at 12:32 PM, Zheng Da <zhengda1936@gmail.com> wrote:
>>> Hello,
>>>
>>> I just started to use lttng. I use Ubuntu 12.04 and the kernel version
>>> 3.8.12. I use a customized kernel, so the lttng package in ubuntu
>>> can't be installed correctly. I built lttng 2.0 myself.
>>
>> Did you build only the lttng-modules or the complete toolchain
>> (lttng-tools, lttng-ust, lttng-modules)? Which versions of the
>> different packages are you using?
>>
>> Thanks,
>> Jérémie
>>
>>>
>>> Then I followed the steps in https://lttng.org/quickstart. When I run
>>> lttng start, I got the errors:
>>> root@ubuntu:~# lttng start
>>> PERROR: sendmsg: Bad file descriptor [in lttcomm_send_unix_sock() at
>>> sessiond-comm.c:311]
>>> PERROR: send consumer channel: Bad file descriptor [in
>>> send_kconsumer_session_streams() at main.c:636]
>>> PERROR: ioctl start session: No buffer space available [in
>>> kernel_start_session() at kernel.c:397]
>>> Error: Starting kernel trace failed
>>>
>>> Someone said in the mailing list that this problem may have something
>>> to do with memory limit. But it shouldn't be my case as my machine has
>>> 512GB memory.
>>>
>>> Can anyone help me troubleshoot the problem?
>>>
>>> Thanks,
>>> Da
>>>
>>> _______________________________________________
>>> lttng-dev mailing list
>>> lttng-dev@lists.lttng.org
>>> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
>>
>>
>>
>> --
>> Jérémie Galarneau
>> EfficiOS Inc.
>> http://www.efficios.com



-- 
Jérémie Galarneau
EfficiOS Inc.
http://www.efficios.com

Re: lttng start error

[Zheng Da]

I don't know. I tried with kernel 3.2.30 and didn't get any problems.

Da

On Mon, Jun 3, 2013 at 10:05 PM, Jérémie Galarneau
<jeremie.galarneau@efficios.com> wrote:
> Hi Zeng,
>
> Just tried the 2.0 release on a Ubuntu-12.04 VM and I could not
> reproduce your problem. Any chance you have installed different
> versions of LTTng (either built from source or from your package
> manager)?
>
> root@ubuntu1204-32:/home/jgalar# sudo lttng create
> Spawning a session daemon
> Warning: No tracing group detected
> Session auto-20130603-220050 created.
> Traces will be written in /root/lttng-traces/auto-20130603-220050
> root@ubuntu1204-32:/home/jgalar# sudo lttng enable-event -k -a
> All kernel events are enabled in channel channel0
> root@ubuntu1204-32:/home/jgalar# sudo lttng start
> Tracing started for session auto-20130603-220050
> root@ubuntu1204-32:/home/jgalar# sudo lttng stop
> Tracing stopped for session auto-20130603-220050
>
> That produces a readable trace here.
>
> Regards,
> Jérémie
>
> On Thu, May 30, 2013 at 3:05 PM, Zheng Da <zhengda1936@gmail.com> wrote:
>> Hello,
>>
>> I built lttng-modules-2.0.6, lttng-tools-2.0.5 and lttng-ust-2.0.6.
>>
>> Best,
>> Da
>>
>> On Thu, May 30, 2013 at 1:14 PM, Jérémie Galarneau
>> <jeremie.galarneau@efficios.com> wrote:
>>> On Thu, May 30, 2013 at 12:32 PM, Zheng Da <zhengda1936@gmail.com> wrote:
>>>> Hello,
>>>>
>>>> I just started to use lttng. I use Ubuntu 12.04 and the kernel version
>>>> 3.8.12. I use a customized kernel, so the lttng package in ubuntu
>>>> can't be installed correctly. I built lttng 2.0 myself.
>>>
>>> Did you build only the lttng-modules or the complete toolchain
>>> (lttng-tools, lttng-ust, lttng-modules)? Which versions of the
>>> different packages are you using?
>>>
>>> Thanks,
>>> Jérémie
>>>
>>>>
>>>> Then I followed the steps in https://lttng.org/quickstart. When I run
>>>> lttng start, I got the errors:
>>>> root@ubuntu:~# lttng start
>>>> PERROR: sendmsg: Bad file descriptor [in lttcomm_send_unix_sock() at
>>>> sessiond-comm.c:311]
>>>> PERROR: send consumer channel: Bad file descriptor [in
>>>> send_kconsumer_session_streams() at main.c:636]
>>>> PERROR: ioctl start session: No buffer space available [in
>>>> kernel_start_session() at kernel.c:397]
>>>> Error: Starting kernel trace failed
>>>>
>>>> Someone said in the mailing list that this problem may have something
>>>> to do with memory limit. But it shouldn't be my case as my machine has
>>>> 512GB memory.
>>>>
>>>> Can anyone help me troubleshoot the problem?
>>>>
>>>> Thanks,
>>>> Da
>>>>
>>>> _______________________________________________
>>>> lttng-dev mailing list
>>>> lttng-dev@lists.lttng.org
>>>> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
>>>
>>>
>>>
>>> --
>>> Jérémie Galarneau
>>> EfficiOS Inc.
>>> http://www.efficios.com
>
>
>
> --
> Jérémie Galarneau
> EfficiOS Inc.
> http://www.efficios.com

lttng start error

[Zheng Da]

Hello,

I just started to use lttng. I use Ubuntu 12.04 and the kernel version
3.8.12. I use a customized kernel, so the lttng package in ubuntu
can't be installed correctly. I built lttng 2.0 myself.

Then I followed the steps in https://lttng.org/quickstart. When I run
lttng start, I got the errors:
root@ubuntu:~# lttng start
PERROR: sendmsg: Bad file descriptor [in lttcomm_send_unix_sock() at
sessiond-comm.c:311]
PERROR: send consumer channel: Bad file descriptor [in
send_kconsumer_session_streams() at main.c:636]
PERROR: ioctl start session: No buffer space available [in
kernel_start_session() at kernel.c:397]
Error: Starting kernel trace failed

Someone said in the mailing list that this problem may have something
to do with memory limit. But it shouldn't be my case as my machine has
512GB memory.

Can anyone help me troubleshoot the problem?

Thanks,
Da