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SubjectRe: Wanted: hotfixes for -mm kernels
In-Reply-To: <1138913633.15691.109.camel@mindpipe>

On Thu, 02 Feb 2006 at 15:53:52 -0500, Lee Revell wrote:

> On Thu, 2006-02-02 at 15:00 -0500, Chuck Ebbert wrote:
> > Most -mm kernels have small but critical bugs that are found shortly
> > after release. Patches for these are posted on linux-kernel but
> > they aren't made available on until the next -mm release.
> >
> > Would it be possible to create a hotfix/ directory for each -mm
> > release and put those patches there? A README could explain that
> > the fixes are untested. At least people reading the files could
> > see an issue exists even if they're not brave enough to try the
> > patch. :)
> I doubt it - mm is an experimental kernel, hotfixes only make sense for
> production stuff. It moves too fast.
> A better question is what does -mm give you that mainline does not, that
> causes you to want to "stabilize" a specific -mm version?

I'm talking about patches for problems that keep you from even testing
-mm, or that fix really annoying things you hit while testing.

E.g. in 2.6.16-rc1-mm4 we have:

- SMP alternatives removes the lock prefix from instructions
in every loaded module because it wrongly believes you are
running an SMP kernel on UP.

- Device-mapper mirroring is using the wrong endianness and will
try to recover non-existent regions on the device.

- Compiler spews hundreds of warning messages during build.

- VGA console scrollback is totally broken because it prints
a message on every scroll operation.

Patches for all of the above and more have been posted to the list and
I have applied them. All I want is a place to collect them so they can
be more easily found.

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