On Thu, 22 Nov 2012 14:26:10 -0800
H. Peter Anvin h...@zytor.com wrote:
Bullshit. This should be a separate domain.
Thanks for top-posting, hpa...
Andrew Cooper andrew.coop...@citrix.com wrote:
On 22/11/12 17:47, H. Peter Anvin wrote:
The other thing that should be considered here is
On 22/11/12 17:47, H. Peter Anvin wrote:
The other thing that should be considered here is how utterly
preposterous the notion of doing in-guest crash dumping is in a system
that contains a hypervisor. The reason for kdump is that on bare metal
there are no other options, but in a
On 22/11/2012 17:47, H. Peter Anvin wrote:
The other thing that should be considered here is how utterly
preposterous the notion of doing in-guest crash dumping is in a system
that contains a hypervisor. The reason for kdump is that on bare metal
there are no other options, but in a
Hi,
Le 23/11/2012 02:56, Andrew Cooper a écrit :
For within-guest kexec/kdump functionality, I agree that it is barking
mad. However, we do see cloud operators interested in the idea so VM
administrators can look after their crashes themselves.
It's not barking mad when your dayjob is to
On 22.11.12 at 18:37, H. Peter Anvin h...@zytor.com wrote:
I actually talked to Ian Jackson at LCE, and mentioned among other
things the bogosity of requiring a PUD page for three-level paging in
Linux -- a bogosity which has spread from Xen into native. It's a page
wasted for no good
On Fri, Nov 23, 2012 at 09:53:37AM +, Jan Beulich wrote:
On 23.11.12 at 02:56, Andrew Cooper andrew.coop...@citrix.com wrote:
On 23/11/2012 01:38, H. Peter Anvin wrote:
I still don't really get why it can't be isolated from dom0, which would
make more sense to me, even for a Xen crash.
On 23.11.12 at 11:37, Daniel Kiper daniel.ki...@oracle.com wrote:
On Fri, Nov 23, 2012 at 09:53:37AM +, Jan Beulich wrote:
On 23.11.12 at 02:56, Andrew Cooper andrew.coop...@citrix.com wrote:
On 23/11/2012 01:38, H. Peter Anvin wrote:
I still don't really get why it can't be isolated
On Fri, 2012-11-23 at 10:37 +, Daniel Kiper wrote:
On Fri, Nov 23, 2012 at 09:53:37AM +, Jan Beulich wrote:
On 23.11.12 at 02:56, Andrew Cooper andrew.coop...@citrix.com wrote:
The crash region (as specified by crashkernel= on the Xen command line)
is isolated from dom0.
[...]
On Fri, 2012-11-23 at 09:56 +, Jan Beulich wrote:
On 22.11.12 at 18:37, H. Peter Anvin h...@zytor.com wrote:
I actually talked to Ian Jackson at LCE, and mentioned among other
That was me actually (this happens surprisingly often ;-)).
things the bogosity of requiring a PUD page for
On Fri, Nov 23, 2012 at 10:51:55AM +, Jan Beulich wrote:
On 23.11.12 at 11:37, Daniel Kiper daniel.ki...@oracle.com wrote:
On Fri, Nov 23, 2012 at 09:53:37AM +, Jan Beulich wrote:
On 23.11.12 at 02:56, Andrew Cooper andrew.coop...@citrix.com wrote:
On 23/11/2012 01:38, H. Peter
On Fri, Nov 23, 2012 at 10:51:08AM +, Ian Campbell wrote:
On Fri, 2012-11-23 at 10:37 +, Daniel Kiper wrote:
On Fri, Nov 23, 2012 at 09:53:37AM +, Jan Beulich wrote:
On 23.11.12 at 02:56, Andrew Cooper andrew.coop...@citrix.com wrote:
The crash region (as specified by
Daniel Kiper daniel.ki...@oracle.com writes:
On Tue, Nov 20, 2012 at 08:40:39AM -0800, ebied...@xmission.com wrote:
Daniel Kiper daniel.ki...@oracle.com writes:
Some kexec/kdump implementations (e.g. Xen PVOPS) could not use default
functions or require some changes in behavior of
The other thing that should be considered here is how utterly
preposterous the notion of doing in-guest crash dumping is in a system
that contains a hypervisor. The reason for kdump is that on bare metal
there are no other options, but in a hypervisor system the right thing
should be for the
Bullshit. This should be a separate domain.
Andrew Cooper andrew.coop...@citrix.com wrote:
On 22/11/12 17:47, H. Peter Anvin wrote:
The other thing that should be considered here is how utterly
preposterous the notion of doing in-guest crash dumping is in a
system
that contains a
I still don't really get why it can't be isolated from dom0, which would make
more sense to me, even for a Xen crash.
Andrew Cooper andrew.coop...@citrix.com wrote:
On 22/11/2012 17:47, H. Peter Anvin wrote:
The other thing that should be considered here is how utterly
preposterous the
Daniel Kiper daniel.ki...@oracle.com writes:
Some kexec/kdump implementations (e.g. Xen PVOPS) could not use default
functions or require some changes in behavior of kexec/kdump generic code.
To cope with that problem kexec_ops struct was introduced. It allows
a developer to replace all or
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