Bug#404148: i'm not convinced release notes are enough
On Tue, Mar 13, 2007 at 09:01:03PM +0000, Peter Green wrote:
> despite the best intentions of debian i am convinced that most users will
> not read the release notes and over the lifetime of the etch release
> having large ammounts (just how much is needed to trigger this bug btw) of
> memory will become more and more common.
AIUI the bug triggers on systems with memory in excess of 5GB. Limited to
server-class hardware. I hope server admins are aware of the contents of
release notes.
> what is the performance impact of using the safe option on all hardware
> even that not affected by this bug? would using that option by default
> result in a noticable performance degrdation?
It's unknown to me whether all other currently-supported systems even *work*
if iommu=soft is set. This is not the time to gamble with the kernel.
If a targetted patch is available that sets iommu=soft for the chipset in
question, that would be a good candidate for the next kernel upload, which
may or may not make it into r0. But if no one has a good fix to offer, I
think we need to settle for documenting it as errata given that upstream
doesn't have a proper fix for this yet.
--
Steve Langasek Give me a lever long enough and a Free OS
Debian Developer to set it on, and I can move the world.
vorlon@debian.org http://www.debian.org/
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