Re: systemtap & backward compatibility, was Re: [RFC] systemtap:begin the process of using proper kernel APIs

From: Adrian Bunk
Date: Wed Jul 23 2008 - 12:54:31 EST

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, 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. If it regresses,
> send us a note or a patch. If practical, we'll integrate it (and add
> any backward-compatibility hacks if needed) into systemtap.

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.

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.

> - FChE



"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

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at