Re: [Bug 12222] New: kernel BUG at drivers/pci/intel-iommu.c:1373!

[FUJITA Tomonori]

On Sun, 14 Dec 2008 09:35:38 -0800 (PST)
bugme-daemon@xxxxxxxxxxxxxxxxxxx wrote:

> http://bugzilla.kernel.org/show_bug.cgi?id=12222
> 
>            Summary: kernel BUG at drivers/pci/intel-iommu.c:1373!
>            Product: IO/Storage
>            Version: 2.5
>      KernelVersion: 2.6.26-gentoo-r4
>           Platform: All
>         OS/Version: Linux
>               Tree: Mainline
>             Status: NEW
>           Severity: normal
>           Priority: P1
>          Component: SCSI
>         AssignedTo: linux-scsi@xxxxxxxxxxxxxxx
>         ReportedBy: john.blbec@xxxxxxxxxx
>                 CC: anil.s.keshavamurthy@xxxxxxxxx
> 
> 
> Latest working kernel version: unknown

Probably, this is a VT-d bug. I saw the same bug report before:

http://lkml.org/lkml/2008/9/8/138

it's worth trying the latest kernel but I guess that the problem still
exists.

As Mark suggested, it's also worth trying 'intel_iommu=strict' kernel
boot option, I think. If it doesn't work, you can use a workaround to
disable VT-d with 'intel_iommu=off' kernel boot option.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/