[lttng-dev] Create channel error resolved

[Jérémie Galarneau]

Good to hear, thanks!

Jérémie

On Wed, Jul 8, 2015 at 5:27 PM, Dylan <dilong.zheng at mitel.com> wrote:

> Hello Jeremie,
>
> So I uninstalled lttng-ust and reinstalled it using my package manager and
> the error I was getting seemed to be gone (I am able to enable the user
> events without a create channel error now).
>
> Thanks,
>
> Dilong
> On Jul 8, 2015, at 5:10 PM, "Jérémie Galarneau" <
> jeremie.galarneau at efficios.com> wrote:
>>
>>  Can you test whether or not you can reproduce this using the latest 2.5
>> release (lttng-tools 2.5.4 + lttng-ust 2.5.5)?
>>  Jérémie
>>
>>  On Tue, Jul 7, 2015 at 2:23 PM, Dilong Zheng <Dilong.Zheng at mitel.com>
>> wrote:
>>
>>>  Hi,
>>>
>>> I'm using *LTTng v2.5.1 - Fumisterie*.
>>>
>>> I launched the session daemon manually using: lttng-sessiond -vvv and
>>> attempted to enable my UST events in another terminal (unsuccessfully). I
>>> have attached the contents of the sessiond log (please see
>>> *sessiondlog.txt*).
>>>
>>> Thanks,
>>>
>>> Dilong
>>>
>>>  ------------------------------
>>>  *From:* jeremie.galarneau at gmail.com <jeremie.galarneau at gmail.com> on
>>> behalf of Jérémie Galarneau <jeremie.galarneau at efficios.com>
>>> *Sent:* Tuesday, July 7, 2015 1:13 PM
>>>
>>> *To:* Dilong Zheng
>>> *Cc:* lttng-dev at lists.lttng.org
>>> *Subject:* Re: [lttng-dev] UST Create Channel Failed, Why?
>>>
>>>    Which release of 2.5 are you using? You can find out using:
>>> $ lttng version
>>>
>>>  Can you launch the session daemon manually in verbose-mode and provide
>>> the logs?
>>>  $ lttng-sessiond -vvv
>>>
>>>  and enable your events in another terminal.
>>>
>>>  Thanks,
>>>  Jérémie
>>>
>>>
>>>  On Tue, Jul 7, 2015 at 11:28 AM, Dilong Zheng <Dilong.Zheng at mitel.com>
>>> wrote:
>>>
>>>>  Hi Jeremie,
>>>>
>>>>
>>>>  Had some grammatical mistakes in my last email.... this should be
>>>> clearer.
>>>>
>>>>
>>>>  I am using LTTng v2.5. I am not explicitly creating any channels. I
>>>> am only creating a session via: lttng create [session-name] . I used
>>>> to always just create a session and then enable whichever available user
>>>> tracepoint that I need (without explicitly creating any channels).
>>>>
>>>>
>>>>  Thanks,
>>>>
>>>>
>>>>  Dilong
>>>>
>>>>
>>>>  ------------------------------
>>>>  *From:* Dilong Zheng
>>>> *Sent:* Tuesday, July 7, 2015 11:26 AM
>>>> *To:* Jérémie Galarneau
>>>>
>>>> *Cc:* lttng-dev at lists.lttng.org
>>>> *Subject:* Re: [lttng-dev] UST Create Channel Failed, Why?
>>>>
>>>>
>>>> Hi Jeremie,
>>>>
>>>>
>>>>  I am using LTTng v2.5. I am not explicitly creating channels. I am
>>>> only creating a session: lttng create [session-name] . It used to
>>>> always just create a session and then enable whichever available user
>>>> tracepoint that I need (which out explicitly creating any channels).
>>>>
>>>>
>>>>  Thanks,
>>>>
>>>>
>>>>  Dilong
>>>>
>>>>  ------------------------------
>>>>  *From:* jeremie.galarneau at gmail.com <jeremie.galarneau at gmail.com> on
>>>> behalf of Jérémie Galarneau <jeremie.galarneau at efficios.com>
>>>> *Sent:* Tuesday, July 7, 2015 11:20 AM
>>>> *To:* Dilong Zheng
>>>> *Cc:* lttng-dev at lists.lttng.org
>>>> *Subject:* Re: [lttng-dev] UST Create Channel Failed, Why?
>>>>
>>>>   Hi Dilong,
>>>>
>>>>  How do you create this channel and using which version of LTTng?
>>>>
>>>>  Jérémie
>>>>
>>>>  On Mon, Jul 6, 2015 at 2:11 PM, Dilong Zheng <Dilong.Zheng at mitel.com>
>>>> wrote:
>>>>
>>>>>  Hi all,
>>>>>
>>>>>
>>>>>  While trying to enable UST events, I get the following error message:
>>>>>
>>>>>
>>>>>  Error: Event mitel:sem_wait_entry: UST create channel failed
>>>>> (channel channel0, session mcdUST3)
>>>>>
>>>>>
>>>>>  When I type: lttng list -u I am able to see a list of all my UST
>>>>> tracepoints.
>>>>>
>>>>> Could someone please provide some insight as to why this error is
>>>>> appearing and steps I could take to fix this error. Thanks.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> 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
>>>
>>
>>
>>
>> --
>>  Jérémie Galarneau
>> EfficiOS Inc.
>> http://www.efficios.com
>>
>


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