Re: 2.6.26-rc6-git2: Reported regressions from 2.6.25

Linus Torvalds
2008-06-14T21:45:17Z

On Sat, 14 Jun 2008, Rafael J. Wysocki wrote:
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10912
> Subject : Regressions in the last kernels
> Submitter : werner <werner@sys-linux.yi.org>
> Date : 2008-06-14 18:26 (1 days old)
> References : http://marc.info/?l=linux-kernel&m=121346933911641&w=4

I don't believe this is a regression, at least the 8GB thing. The
HIGHMEM64G config option has had a

depends on !M386 && !M486

for quite a while now. It certainly was in 2.6.25 already.

So if you want PAE support, we do require that you ask for a kernel that
has cmpxchg8b support (needed for the atomic 64-bit clearing of a PAE page
table entry). Not to mention a CPU that supports PAE. And that is simply
incompatible with "I want it to work on an i486 too".

So saying "I want a kernel that uses PAE _and_ works on an i486" is simply
nonsensical. If we ever supported it, it was a mistake, and wouldn't have
actually worked on an i486 anyway.

> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10908
> Subject : IPF Montvale machine panic when running a network-relevent testing
> Submitter : Zhang, Yanmin <yanmin_zhang@linux.intel.com>
> Date : 2008-06-13 8:19 (2 days old)
> References : http://marc.info/?l=linux-kernel&m=121334523711437&w=4

I think this got fixed by ec0a196626bd12e0ba108d7daa6d95a4fb25c2c5: "tcp:
Revert 'process defer accept as established' changes".

> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10903
> Subject : ssh connections hang with 2.6.26-rc5
> Submitter : Didier Raboud <didier@raboud.com>
> Date : 2008-06-13 02:39 (2 days old)

I think this is likely fixed by the same revert as above.

David?

Linus