[ltt-dev] lttctl stop command hangs on ARM926 processor

[Mathieu Desnoyers]

There is always the option to backport the lttng patches from 2.6.31.6
to 2.6.30.

The compatibility list is more a guide than a strict list of
"incompatibility", so you might be lucky and get a non-compabile lttng
to apply mostly fine on an older kernel. Your mileage may vary.

Mathieu

* Francis Leblanc (fleblanclists at gmail.com) wrote:
> Ok, do I absolutely need to update the kernel in order to apply the
> patchset 0.170 ?
> lttng 0.170 seems to correspond to kernel 2.6.31.6 ...
> 
> We are using a SDK from a 3rd party and upgrading the kernel would
> require more tests on our end.
> 
> Francis
> 
> On Thu, Jun 23, 2011 at 10:58 AM, Mathieu Desnoyers
> <compudj at krystal.dyndns.org> wrote:
> > * Francis Leblanc (fleblanclists at gmail.com) wrote:
> >> Hi everyone,
> >>
> >> I am trying to get LTTng kernel tracer work on an ARM target.
> >> I can start the kernel tracing with lttctl -C -w /tmp/trace1 trace1,
> >> but when I stop it with lttctl -D trace1, it hangs.
> >> (see console.log and .config attachments)
> >>
> >> Setup information :
> >> kernel 2.6.30
> >> LTTng 0.159 (patch-2.6.30-lttng-0.159)
> >> ltt-control-0.75-15112009
> >
> > If you look at the compatibility list:
> >
> > http://git.lttng.org/?p=lttv.git;a=blob_plain;f=doc/developer/lttng-lttv-compatibility.html;hb=HEAD
> >
> > a few fixes came into LTTng around versions 0.166 and 0.170 to deal with
> > trace teardown problems. I would therefore recommend you first try
> > upgrading your lttng version.
> >
> > Thanks for the detailed report,
> >
> > Mathieu
> >
> >>
> >> Thanks in advance !
> >>
> >> Francis Leblanc
> >
> >
> >
> >> _______________________________________________
> >> ltt-dev mailing list
> >> ltt-dev at lists.casi.polymtl.ca
> >> http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev
> >
> >
> > --
> > Mathieu Desnoyers
> > Operating System Efficiency R&D Consultant
> > EfficiOS Inc.
> > http://www.efficios.com
> >
> 

-- 
Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.
http://www.efficios.com