[lttng-dev] 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 at 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 at 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 at ubuntu1204-32:/home/jgalar# sudo lttng enable-event -k -a
> All kernel events are enabled in channel channel0
> root at ubuntu1204-32:/home/jgalar# sudo lttng start
> Tracing started for session auto-20130603-220050
> root at 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 at 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 at efficios.com> wrote:
>>> On Thu, May 30, 2013 at 12:32 PM, Zheng Da <zhengda1936 at 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 at 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 at 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