Package: linux-2.6
Version: 2.6.25
Severity: normal
Tags: patch

Attached are two patches against the debian linux-2.6-2.6.25
sources that would be nice to apply for the PS3.

- debian-powerpc64-vmemmap-variable-page-size.diff

This patch changes vmemmap to use a different region (region 0xf) of the
address space whose page size can be dynamically configured at boot.

The problem with the current approach of always using 16M pages is that
it's not well suited to machines that have small amounts of memory such
as small partitions on pseries, or PS3's.

In fact, on the PS3, failure to allocate the 16M page backing vmmemmap
tends to prevent hotplugging the HV's "additional" memory, thus limiting
the available memory even more, from my experience down to something
like 80M total, which makes it really not very useable.

- debian-powerpc64-ps3-gelic-wireless-fix-memory-leak.patch

This fixes the bug that the I/O buffer is not freed at the driver removal.


-- System Information:
Debian Release: lenny/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: powerpc (ppc64)

Kernel: Linux 2.6.25-3-powerpc64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

tags 483489 wontfix
thanks

On Wed, May 28, 2008 at 05:26:37PM -0700, Geoff Levand wrote:
> Attached are two patches against the debian linux-2.6-2.6.25
> sources that would be nice to apply for the PS3.

Please send them to stable@kernel.org. Also you have to use that way to
fix the following error, after it have been applied to Linus' tree:
| ERROR: "fb_mode_option" [drivers/ps3/ps3av_mod.ko] undefined!

Tagging as wontfix for now.

Bastian

--
Leave bigotry in your quarters; there's no room for it on the bridge.
-- Kirk, "Balance of Terror", stardate 1709.2



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Bastian Blank wrote:
> tags 483489 wontfix
> thanks
>
> On Wed, May 28, 2008 at 05:26:37PM -0700, Geoff Levand wrote:
>> Attached are two patches against the debian linux-2.6-2.6.25
>> sources that would be nice to apply for the PS3.
>
> Please send them to stable@kernel.org. Also you have to use that way to
> fix the following error, after it have been applied to Linus' tree:
> | ERROR: "fb_mode_option" [drivers/ps3/ps3av_mod.ko] undefined!
>
> Tagging as wontfix for now.

Just FYI, I submitted the memory leak and undefined symbol bugs for
the stable kernel.

I don't think the vmemmap-variable-page-size patch is suitable as
it is quite intrusive and is not really a 'critical' fix.

-Geoff




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