[lttng-dev] Debian 3.16.7-ckt9-2 issue with lttng-modules kmem probe
mathieu.desnoyers at efficios.com
Fri Apr 24 13:45:56 EDT 2015
----- Original Message -----
> * Mathieu Desnoyers <mathieu.desnoyers at efficios.com> wrote:
> > Hi Jon,
> > It appears that lttng-modules cannot build on the
> > Debian kernel 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt9-2 (2015-04-13)
> > x86_64 GNU/Linux.
> > It appears that their exported kmem.h header differs from
> > the upstream stable branch, but AFAIK there is no Debian-specific
> > version number available to distinguish between upstream stable
> > and the Debian kernel.
> Indeed. The only distinguishing characteristic I see is EXTRAVERSION
> defined to '-ckt9'. I haven't had a chance to try yet, but could that
> be acceptable?
No, because we need to do conditionals comparing numeric values
both in Makefiles and within C.
> > We have been hit by this in the past for Ubuntu kernels, and the
> > solution has been to introduce a UTS_UBUNTU_RELEASE_ABI define
> > into their kernels, which can be used to follow their own kernel
> > versions.
> > Do you think we could ask Debian to do the same ?
> I'm happy to ask, the argument is certainly sound.
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