:high address but no IOMMU error ???

your_shadow03 · 09-30-2008, 03:32 AM

I was in verse of installing RHEL 4 Update 3 on my HP Proliant server of 8 GB RAM and 143 GB Hard disk.When I booted with the first CD and it asked me about the installation and pressed "Enter".

It got stucked during the display :

Code:

running install...
running /sbin/loader
Kernel Panic - not syncing: pCI-DMA :high address but no IOMMU error

Whats this error All about?

Any Idea?

Kernel Panic - not syncing: pCI-DMA ::high address but no IOMMU error ???

H_TeXMeX_H · 09-30-2008, 06:10 AM

See here, looks like this is the same issue:
http://www.linuxquestions.org/questi...-iommu-289298/

or the important part:
https://bugzilla.redhat.com/bugzilla....cgi?id=169115

your_shadow03 · 09-30-2008, 06:59 AM

I have already gone through that...Do I need to upgrade BIOS as it talks?
How to upgrade if yes?It talks about the Options to enable iommu but I dont see any those options on the BIOS as such.

I think You might have seen my queries on the same link too,...see the last post continued on the same thread.

pLS sUGGEST

H_TeXMeX_H · 09-30-2008, 09:01 AM

You might want to try. As you have an HP Proliant server, maybe look on their site find your motherboard and it should have BIOS updates there.

your_shadow03 · 09-30-2008, 09:40 AM

I am not able to find the exact doc.Have you come across any of them?

H_TeXMeX_H · 09-30-2008, 09:44 AM

Here's one example assuming you had an HP ProLiant DL320 G5p Server series:
http://h20000.www2.hp.com/bizsupport...OID=2025#12212