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Re: [RFC][PATCH 0/4] Container Freezer [message #19037] Wed, 20 June 2007 16:12 Go to next message
Dave Hansen is currently offline  Dave Hansen
Messages: 240
Registered: October 2005
Senior Member
On Wed, 2007-06-20 at 17:07 +0200, Cedric Le Goater wrote:
> This patchset is a prototype using the container infrastructure and
> the swsusp freezer to freeze a group of tasks. 

And this is useful because you don't want processes doing anything while
you try to checkpoint them, right? ;)

-- Dave

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Re: [RFC][PATCH 0/4] Container Freezer [message #19056 is a reply to message #19037] Wed, 20 June 2007 16:22 Go to previous message
Cedric Le Goater is currently offline  Cedric Le Goater
Messages: 443
Registered: February 2006
Senior Member
Dave Hansen wrote:
> On Wed, 2007-06-20 at 17:07 +0200, Cedric Le Goater wrote:
>> This patchset is a prototype using the container infrastructure and
>> the swsusp freezer to freeze a group of tasks. 
> 
> And this is useful because you don't want processes doing anything while
> you try to checkpoint them, right? ;)

right there's always a reason for a patchset :) The freezer is something 
already used by openvz. IBM's Metacluster uses a from kernel SIGSTOP signal. 

I would be in favor of adding a new c/r signal like other operating systems 
have done today and in the past. This is something to discuss.

C. 
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