[lkml]   [2010]   [Dec]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] Update MCP55 quirk to not affect non HyperTransport variants
On Wed,  8 Dec 2010 09:47:48 -0500
Neil Horman <> wrote:

> I wrote this quirk awhile ago to properly setup MCP55 chips on hypertransport
> busses so that interrupts reached whatever cpu happend to boot the kdump kernel.
> while that works well, it was recently shown to me that a a non-hypertransport
> variant of the MCP55 exists, and on those system the register that this quirk
> manipulates causes hangs if you write to it. Since the quirk was only meant to
> handle errors found on MCP55 chips that have a HT interface, this patch adds a
> filter to make sure the chip is an HT capable before making the needed register
> adjustment. This lets the broken MCP55s work with kdump while not breaking the
> non-HT variants.
> Resolves
> Tested successfully by the reporter and myself.
> Reported-by: Mathieu B__rard <>
> CC:
> CC:
> CC: Vivek Goyal <>
> CC: Jesse Barnes <>
> Signed-off-by: Neil Horman <>

That needed a Cc:<> as well. Please don't forget to
remember -stable.

 \ /
  Last update: 2010-12-10 00:43    [W:0.100 / U:6.880 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site