lkml.org 
[lkml]   [2008]   [Oct]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC v6][PATCH 0/9] Kernel based checkpoint/restart
Dave Hansen wrote:
> On Mon, 2008-10-13 at 10:13 +0200, Cedric Le Goater wrote:
>> hmm, that's rather complex, because we have to take into account the
>> kernel stack, no ? This is what Andrey was trying to solve in his patchset
>> back in September :
>>
>> http://lkml.org/lkml/2008/9/3/96
>>
>> the restart phase simulates a clone and switch_to to (not) restore the kernel
>> stack. right ?
>
> Do we ever have to worry about the kernel stack if we simply say that
> tasks have to be *in* userspace when we checkpoint them.

at a syscall boundary for example. that would make our life easier
definitely.

C.

> If a task is
> in an uninterruptable wait state, I'm not sure it's safe to checkpoint
> it anyway.



\
 
 \ /
  Last update: 2008-10-15 17:19    [W:0.184 / U:0.008 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site