[lkml]   [2008]   [Dec]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [patch 01/22] AMD IOMMU: enable device isolation per default
On Tue 2008-12-16 16:03:53, Greg KH wrote:
> 2.6.27-stable review patch. If anyone has any objections, please let us know.
> ------------------
> From: Joerg Roedel <>
> commit 3ce1f93c6d53c3f91c3846cf66b018276c8ac2e7 upstream.
> Impact: makes device isolation the default for AMD IOMMU
> Some device drivers showed double-free bugs of DMA memory while testing
> them with AMD IOMMU. If all devices share the same protection domain
> this can lead to data corruption and data loss. Prevent this by putting
> each device into its own protection domain per default.
> Signed-off-by: Joerg Roedel <>
> Signed-off-by: Greg Kroah-Hartman <>

This does not look like 'fix for a serious bug' to
me. stable_kernel_rules.txt says '...not a "this could be a problem"
type thing'.

Yes, maybe iommu is mature enough that we want it enabled, but...

(Or maybe Documentation/stable_kernel_rules.txt needs updating. The
patch for penguin dirty feet already got in.....)
(cesky, pictures)

 \ /
  Last update: 2008-12-19 08:25    [W:0.130 / U:18.028 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site