lkml.org 
[lkml]   [2008]   [Jul]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: systemtap & backward compatibility, was Re: [RFC] systemtap: begin the process of using proper kernel APIs
On Wed, Jul 23, 2008 at 01:34:38PM -0400, Frank Ch. Eigler wrote:
> Hi -
>
> On Wed, Jul 23, 2008 at 07:54:05PM +0300, Adrian Bunk wrote:
> > On Wed, Jul 23, 2008 at 12:41:37PM -0400, Frank Ch. Eigler wrote:
> > >...
> > > In the interim (before we come up with a way of moving more
> > > kernel-coupled systemtap code into kernel.org/git), would y'all
> > > consider an arrangement? Those of you who care about systemtap, and
> > > are intending to make an incompatible kernel/module interface change,
> > > please run the systemtap testsuite before & after. [...]
>
> > The number of incompatible kernel/module interface changes per
> > kernel is most likely some medium three digit number. What you have
> > in mind is therefore not really feasible.
>
> Do you think so, even if the historical pattern continues that only a
> small fraction of those changes actually impact systemtap?

But which are these?

All commits that either remove EXPORT_SYMBOL's or touch include/ are
candidates would have to be checked, and that's a four digit number
of commits per kernel release.

What is not feasible is to check each of thesse commits.

> > But we have several levels of kernels that incorporate future stuff,
> > from -rc over -next to -mm, and you could implement automated runs
> > of the systemtap testsuite against the latest ones.
>
> We do some of that already and should do more.
>
> - FChE

cu
Adrian

--

"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed



\
 
 \ /
  Last update: 2008-07-23 20:43    [W:0.077 / U:0.268 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site