Re: [RFC v13][PATCH 00/14] Kernel based checkpoint/restart

2009-02-12 Thread Dave Hansen
On Thu, 2009-02-12 at 17:05 -0600, Matt Mackall wrote: > On Thu, 2009-02-12 at 14:57 -0800, Dave Hansen wrote: > > > Also, what happens if I checkpoint a process in 2.6.30 and restore it in > > > 2.6.31 which has an expanded idea of what should be restored? Do your > > > file formats handle this so

Re: [RFC v13][PATCH 00/14] Kernel based checkpoint/restart

2009-02-12 Thread Matt Mackall
On Thu, 2009-02-12 at 14:57 -0800, Dave Hansen wrote: > > Also, what happens if I checkpoint a process in 2.6.30 and restore it in > > 2.6.31 which has an expanded idea of what should be restored? Do your > > file formats handle this sort of forward compatibility or am I > > restricted to one kerne

How much of a mess does OpenVZ make? ;) Was: What can OpenVZ do?

2009-02-12 Thread Dave Hansen
On Thu, 2009-02-12 at 14:10 -0800, Andrew Morton wrote: > On Thu, 12 Feb 2009 13:51:23 -0800 > Dave Hansen wrote: > > > On Thu, 2009-02-12 at 11:42 -0800, Andrew Morton wrote: > > > On Thu, 12 Feb 2009 13:30:35 -0600 > > > Matt Mackall wrote: > > > > > > > On Thu, 2009-02-12 at 10:11 -0800, Dav

Re: [RFC v13][PATCH 00/14] Kernel based checkpoint/restart

2009-02-12 Thread Dave Hansen
On Thu, 2009-02-12 at 13:30 -0600, Matt Mackall wrote: > On Thu, 2009-02-12 at 10:11 -0800, Dave Hansen wrote: ... > > * Filesystem state > > * contents of files > > * mount tree for individual processes > > * flock > > * threads and sessions > > * CPU and NUMA affinity > > * sys_remap_fil

Re: What can OpenVZ do?

2009-02-12 Thread Alexey Dobriyan
On Thu, Feb 12, 2009 at 01:51:23PM -0800, Dave Hansen wrote: > On Thu, 2009-02-12 at 11:42 -0800, Andrew Morton wrote: > > On Thu, 12 Feb 2009 13:30:35 -0600 > > Matt Mackall wrote: > > > > > On Thu, 2009-02-12 at 10:11 -0800, Dave Hansen wrote: > > > > > > > > - In bullet-point form, what featu

Re: What can OpenVZ do?

2009-02-12 Thread Andrew Morton
On Thu, 12 Feb 2009 13:51:23 -0800 Dave Hansen wrote: > On Thu, 2009-02-12 at 11:42 -0800, Andrew Morton wrote: > > On Thu, 12 Feb 2009 13:30:35 -0600 > > Matt Mackall wrote: > > > > > On Thu, 2009-02-12 at 10:11 -0800, Dave Hansen wrote: > > > > > > > > - In bullet-point form, what features a

What can OpenVZ do?

2009-02-12 Thread Dave Hansen
On Thu, 2009-02-12 at 11:42 -0800, Andrew Morton wrote: > On Thu, 12 Feb 2009 13:30:35 -0600 > Matt Mackall wrote: > > > On Thu, 2009-02-12 at 10:11 -0800, Dave Hansen wrote: > > > > > > - In bullet-point form, what features are missing, and should be added? > > > > > > * support for more arch

Re: [RFC v13][PATCH 00/14] Kernel based checkpoint/restart

2009-02-12 Thread Serge E. Hallyn
Quoting Dave Hansen (d...@linux.vnet.ibm.com): > Patch 12/14 is supposed to address this *concept*. But, it hasn't been > carried through so that it currently works. My expectation was that we > would go through and add things over time. I'll go make sure I push it > to the point that it actuall

Re: [RFC v13][PATCH 00/14] Kernel based checkpoint/restart

2009-02-12 Thread Andrew Morton
On Thu, 12 Feb 2009 13:30:35 -0600 Matt Mackall wrote: > On Thu, 2009-02-12 at 10:11 -0800, Dave Hansen wrote: > > > > - In bullet-point form, what features are missing, and should be added? > > > > * support for more architectures than i386 > > * file descriptors: > > * sockets (network, A

Re: [RFC v13][PATCH 00/14] Kernel based checkpoint/restart

2009-02-12 Thread Matt Mackall
On Thu, 2009-02-12 at 10:11 -0800, Dave Hansen wrote: > > - In bullet-point form, what features are missing, and should be added? > > * support for more architectures than i386 > * file descriptors: > * sockets (network, AF_UNIX, etc...) > * devices files > * shmfs, hugetlbfs > * epoll

Re: [RFC v13][PATCH 00/14] Kernel based checkpoint/restart

2009-02-12 Thread Dave Hansen
On Thu, 2009-02-12 at 10:17 +0100, Ingo Molnar wrote: > * Andrew Morton wrote: > > > On Tue, 10 Feb 2009 09:05:47 -0800 > > Dave Hansen wrote: > > > > > On Tue, 2009-01-27 at 12:07 -0500, Oren Laadan wrote: > > > > Checkpoint-restart (c/r): a couple of fixes in preparation for 64bit > > > > arc

Re: [RFC v13][PATCH 00/14] Kernel based checkpoint/restart

2009-02-12 Thread Dave Hansen
On Wed, 2009-02-11 at 14:14 -0800, Andrew Morton wrote: > On Tue, 10 Feb 2009 09:05:47 -0800 > Dave Hansen wrote: > > > On Tue, 2009-01-27 at 12:07 -0500, Oren Laadan wrote: > > > Checkpoint-restart (c/r): a couple of fixes in preparation for 64bit > > > architectures, and a couple of fixes for b

Re: [RFC v13][PATCH 00/14] Kernel based checkpoint/restart

2009-02-12 Thread Ingo Molnar
* Andrew Morton wrote: > On Tue, 10 Feb 2009 09:05:47 -0800 > Dave Hansen wrote: > > > On Tue, 2009-01-27 at 12:07 -0500, Oren Laadan wrote: > > > Checkpoint-restart (c/r): a couple of fixes in preparation for 64bit > > > architectures, and a couple of fixes for bugss (comments from Serge > >