[ltt-dev] Fwd: Re: Lttng and Tiny Core?
Medved, Michael
medvedm at ZIN-TECH.COM
Sat Aug 21 12:29:45 EDT 2010
Interestingly enough, when I just compile in Activate Markers and
Immediate Value optimization, I get problems. No lttng stuff. Attached
is the serial dump... after "Done" shows up on the console it just
sits. You can type, but it has no effect.
M
On 08/20/2010 03:52 PM, Mathieu Desnoyers wrote:
> * Medved, Michael (medvedm at ZIN-TECH.COM) wrote:
>
>> Per Mathieu's email, I'm moving my question to this mailing list.
>>
>> In response to his question - I've already built the tiny core 2.6.33.3 kernel and installed it and it seems to work just fine. So when I drop the patch into this build is when things start going awry.
>>
>> The 2.6.33 (already patched for TC) can be had here:
>>
>> http://distro.ibiblio.org/pub/linux/distributions/tinycorelinux/3.x/release/src/kernel/
>>
>>
> OK, can you try disabling all the lttng-specific options and rebuild ?
>
> Also try compiling them as modules, loading one by one, see which one
> fails.
>
> Also having the console output you get when it crashes would be helpful.
> A serial console usually does the trick.
>
> Thanks,
>
> Mathieu
>
>
>> M
>>
>> -------- Original Message --------
>> Subject: Re: Lttng and Tiny Core?
>> Date: Fri, 20 Aug 2010 14:57:13 -0400
>> From: Mathieu Desnoyers<mathieu.desnoyers at efficios.com> <mailto:mathieu.desnoyers at efficios.com>
>> To: Medved, Michael<medvedm at ZIN-TECH.COM> <mailto:medvedm at ZIN-TECH.COM>
>>
>>
>> * Medved, Michael (medvedm at ZIN-TECH.COM) wrote:
>>
>>> Hi Mathieu-
>>>
>>> I'm a NASA contractor and I'd like to us lttng to do some
>>> tracing/profiling of some applications I'm writing for the ISS. I'm
>>> using a linux distro called tiny core, and have successfully gotten the
>>> kernel to compile with the lttng patches applied (to a 2.6.33.3 kernel),
>>> but when I boot it, it doesn't go to the desktop like usual. Instead it
>>> spits out a bunch of information (hex numbers, modprobe stuff, etc) and
>>> then goes to a blank line with no cursor, and it doesn't matter what I
>>> type, nothing happens. Interestingly, if I put in a USB stick it spits
>>> out a bunch of info about it. I compiled everything from that version
>>> of lttng (.213) into the kernel (none as modules).
>>>
>>> I didn't see any forums on the lttng website or any good place to ask my
>>> question, so I thought I'd drop you an email and see if you can point me
>>> in the right direction?
>>>
>> Usually these questions go through the mailing list,
>> ltt-dev at lists.casi.polymtl.ca.
>>
>> You should probably try booting your kernel without the lttng patches applied to
>> make sure it's not just a matter of a missing driver (e.g. proprietary nvidia
>> ?) from your kernel per se.
>>
>> The problem may not even be related to lttng, so it would be good to check that
>> first. So you should try a 2.6.33.3 kernel without lttng applied.
>>
>> Thanks,
>>
>> Mathieu
>>
>>
>>> Thanks!
>>> M
>>>
>> --
>> Mathieu Desnoyers
>> Operating System Efficiency R&D Consultant
>> EfficiOS Inc.
>> http://www.efficios.com
>>
>> _______________________________________________
>> ltt-dev mailing list
>> ltt-dev at lists.casi.polymtl.ca
>> http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev
>>
>>
>
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