Re: LTTng: block device enumeration is not supported by kernel

Re: LTTng: block device enumeration is not supported by kernel

[Michael Jeanson]

Hi John,

Which distribution and kernel version are you running? If it's a patched kernel, are the
patches / source tree publicly available? Which version of lttng? Distro packages or
custom built?

I would also need all the commands required to reproduced the problem.

Regards,

Michael

----- On Sep 4, 2018, at 12:10 PM, John O'Sullivan John.OSullivan@BlackBox.com wrote:

> Hi,
> 
> When I try to add context to a session on my arm based target I get the
> following:
> 
> LTTng: block device enumeration is not supported by kernel
> 
> After which the board locks up.
> 
> Any insight as to the issue?
> 
> 
> John O’Sullivan

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Re: [EXTERNAL] Re: LTTng: block device enumeration is not supported by kernel

[John O'Sullivan]

Hi Micheal,

I am using 4.9.0-xilinx-v2017.2 (https://github.com/Xilinx/linux-xlnx/releases/tag/xilinx-v2017.2) , built using buildroot-2017.02.4 running on a Xilinx MPSoc.
LTTNG_TOOLS_VERSION = 2.9.3
Using the control view I created a session, right clicked on UST Global, selected Add Context, however this morning I keep getting a failure to add a context so I am not sure exactly what set of contexts caused the error yesterday.
I am going to abandon the control view in Compass for now and go back to scripting stuff to see if I can recreate the error.

regards
John
________________________________________
From: Michael Jeanson <mjeanson@efficios.com>
Sent: 04 September 2018 22:55
To: John O'Sullivan
Cc: lttng-dev@lists.lttng.org
Subject: [EXTERNAL] Re: [lttng-dev] LTTng: block device enumeration is not supported by kernel

Hi John,

Which distribution and kernel version are you running? If it's a patched kernel, are the
patches / source tree publicly available? Which version of lttng? Distro packages or
custom built?

I would also need all the commands required to reproduced the problem.

Regards,

Michael

----- On Sep 4, 2018, at 12:10 PM, John O'Sullivan John.OSullivan@BlackBox.com wrote:

> Hi,
>
> When I try to add context to a session on my arm based target I get the
> following:
>
> LTTng: block device enumeration is not supported by kernel
>
> After which the board locks up.
>
> Any insight as to the issue?
>
>
> John O’Sullivan


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LTTng: block device enumeration is not supported by kernel

[John O'Sullivan]

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Hi,
When I try  to add context to a session on my arm based target I get the following:
LTTng: block device enumeration is not supported by kernel

After which the board locks up.
Any insight as to the issue?


John O'Sullivan


________________________________

This email and any files transmitted with it are confidential and are intended for the sole use of the individual to whom they are addressed. Black Box Corporation reserves the right to scan all e-mail traffic for restricted content and to monitor all e-mail in general. If you are not the intended recipient or you have received this email in error, any use, dissemination or forwarding of this email is strictly prohibited. If you have received this email in error, please notify the sender by replying to this email.

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