Bug 260553

Summary:	LiveCD 2008.0-r1 hang early on boot (probably IOMMU related)
Product:	Gentoo Linux	Reporter:	Rumi Szabolcs <rumi>
Component:	[OLD] Unspecified	Assignee:	Gentoo Release Team <releng>
Status:	RESOLVED INVALID
Severity:	normal	CC:	jer
Priority:	High
Version:	unspecified
Hardware:	AMD64
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Rumi Szabolcs 2009-02-27 20:56:28 UTC

When I boot the 2008.0-r1 amd64 LiveCD on our server it hangs
immediately after kernel loading, blank screen, no printk's.

When I specify "iommu=off" it boots normally. I suspected this
must be already known and I've been g00gling around but haven't
found any specific information so far.

Platform is Intel S3210SHLX with a Core2 Q6600 CPU and 8GB RAM.
Unfortunately it is a 24/7 production server so I don't have
the possibility to experiment with various kernels etc. Now
running a 2.6.27-r9 without any IOMMU support compiled in,
no problems so far.

It would be nice to hear from someone who has seen this and
to know whether this is gentoo-specific or whether it has
already been fixed upstream etc. I didn't want to ask on
LKML until it is clear that it is upstream.

Please advise!


Reproducible: Always

Comment 1 Jeroen Roovers (RETIRED) gentoo-dev

2009-02-28 11:21:10 UTC

LiveCDs are no longer supported, but there you go.

Comment 2 Jeroen Roovers (RETIRED) gentoo-dev

2009-02-28 11:21:34 UTC

Can we get an official, front page announcement thereof, please?

Comment 3 Jeroen Roovers (RETIRED) gentoo-dev

2009-02-28 11:22:22 UTC

(In reply to comment #2)
> Can we get an official, front page announcement thereof, please?

Or am I confusing GLI and LiveCD?

Comment 4 Andrew Gaffney (RETIRED) gentoo-dev

2009-02-28 16:34:39 UTC

You're confusing it with GLI. The LiveCD itself is supported. We just won't be building a new one for a while.

If you would, please try to boot this:

http://gentoo.osuosl.org/releases/amd64/autobuilds/20090226/install-amd64-minimal-20090226.iso

It should be using around the same kernel version as you are currently running but still have IOMMU support.

Comment 5 Rumi Szabolcs 2009-03-20 22:11:29 UTC

Recently I've updated all the firmwares on the S3210SHLX board to the
very latest from Intel and now LiveCD doesn't hang anymore, it works
seamlessly without "iommu=off".

I couldn't spot a word about any similar issue in the relnotes of the
firmware update package though:

http://downloadmirror.intel.com/17333/eng/release.txt

I don't know whether this should be considered a WONTFIX or what...
Please somebody @ Gentoo handle this bug appropriately.