Public bug reported:
Binary package hint: linux-image-2.6.35-28-generic
Motherboard info:
Supermicro H8SGL-F-O
RAM is registered
BIOS 1.1b
When IOMMU is enabled, via bios, kernel panics shortly after grub. I'm
not sure how to get a log (or even if logging at that point is
possible).
Problem only happens when IOMMU is enable AND if both of my PCI-e cards are
plugged in
ATI Radeon HD 5670
ASUS Zonar DX
if only one is plugged in, either the ASUS or ATI, the kernel boot correctly.
It also boot correctly with both plugged in and IOMMU disabled.
Getting the dump, might be possible only with a digital camera,
but i wrote parts of a few lines down.
{HEX&Chars}Page Fault{HEX&Chars}
{HEX&Chars}Bad Area{HEX&Chars}
{HEX&Chars}No Sephamore{HEX&Chars}
{HEX&Chars}Opps End{HEX&Chars}
{HEX&Chars}Exit_Notify{HEX&Chars}
Not sure about cause, already emailed SuperMicro.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: iommu kernel panic
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https://bugs.launchpad.net/bugs/763392
Title:
IOMMU, kernel panics shortly after grub
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