lkml.org 
[lkml]   [2011]   [May]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC Patch 5/6] slimdump: Capture slimdump for fatal MCE generated crashes
On Thu, May 26, 2011 at 01:44:47PM -0400, Vivek Goyal wrote:
> On Thu, May 26, 2011 at 10:53:05PM +0530, K.Prasad wrote:
> >
> > slimdump: Capture slimdump for fatal MCE generated crashes
> >
> > System crashes resulting from fatal hardware errors (such as MCE) don't need
> > all the contents from crashing-kernel's memory. Generate a new 'slimdump' that
> > retains only essential information while discarding the old memory.
> >
>
> Why to enforce zeroing out of rest of the vmcore data in kernel. Why not
> leave it to user space.

I think it's a good default to not do a full dump on MCE.
It's very unlikely to be useful for anything, and will just waste
reboot time (aka nines).

That said including the dmesg too may be a good idea.

On the other hand I think the slim dump should be probably generalized
and used for more situations. I could well imagine enabling it by
default on various systems.

-Andi



\
 
 \ /
  Last update: 2011-05-26 20:11    [W:0.117 / U:9.948 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site