Basic documentation for hypervisor-assisted dump.
Signed-off-by: Linas Vepstas [EMAIL PROTECTED]
Signed-off-by: Manish Ahuja [EMAIL PROTECTED]
Documentation/powerpc/phyp-assisted-dump.txt | 127 +++
1 file changed, 127 insertions(+)
Index:
Basic documentation for hypervisor-assisted dump.
Signed-off-by: Linas Vepstas [EMAIL PROTECTED]
Signed-off-by: Manish Ahuja [EMAIL PROTECTED]
Documentation/powerpc/phyp-assisted-dump.txt | 127 +++
1 file changed, 127 insertions(+)
Index:
On 13/01/2008, Olof Johansson [EMAIL PROTECTED] wrote:
How do you expect to have it in full production if you don't have all
resources available for it? It's not until the dump has finished that you
can return all memory to the production environment and use it.
With the PHYP dump, each chunk
On Fri, Jan 11, 2008 at 10:57:51AM -0600, Linas Vepstas wrote:
On 10/01/2008, Nathan Lynch [EMAIL PROTECTED] wrote:
Mike Strosaker wrote:
At the risk of repeating what others have already said, the
PHYP-assistance
method provides some advantages that the kexec method cannot:
-
On 10/01/2008, Nathan Lynch [EMAIL PROTECTED] wrote:
Mike Strosaker wrote:
At the risk of repeating what others have already said, the PHYP-assistance
method provides some advantages that the kexec method cannot:
- Availability of the system for production use before the dump data is
On Wed, Jan 09, 2008 at 10:12:13PM -0600, Linas Vepstas wrote:
On 09/01/2008, Olof Johansson [EMAIL PROTECTED] wrote:
On Wed, Jan 09, 2008 at 08:33:53PM -0600, Linas Vepstas wrote:
Heh. That's the elbow-grease of this thing. The easy part is to get
the core function working. The hard
On 10/01/2008, Olof Johansson [EMAIL PROTECTED] wrote:
On Wed, Jan 09, 2008 at 10:12:13PM -0600, Linas Vepstas wrote:
On 09/01/2008, Olof Johansson [EMAIL PROTECTED] wrote:
On Wed, Jan 09, 2008 at 08:33:53PM -0600, Linas Vepstas wrote:
Heh. That's the elbow-grease of this thing. The
Linas Vepstas wrote:
On 10/01/2008, Olof Johansson [EMAIL PROTECTED] wrote:
On Wed, Jan 09, 2008 at 10:12:13PM -0600, Linas Vepstas wrote:
On 09/01/2008, Olof Johansson [EMAIL PROTECTED] wrote:
On Wed, Jan 09, 2008 at 08:33:53PM -0600, Linas Vepstas wrote:
Heh. That's the elbow-grease of
Mike Strosaker wrote:
At the risk of repeating what others have already said, the PHYP-assistance
method provides some advantages that the kexec method cannot:
- Availability of the system for production use before the dump data is
collected. As was mentioned before, some production
Hi Linas,
Linas Vepstas wrote:
On 08/01/2008, Nathan Lynch [EMAIL PROTECTED] wrote:
Manish Ahuja wrote:
+
+The goal of hypervisor-assisted dump is to enable the dump of
+a crashed system, and to do so from a fully-reset system, and
+to minimize the total elapsed time until the
I used the word actually. I already know that it is intended to be
faster. :)
it should blow it away, as, after all,
it requires one less reboot!
There's more than rebooting going on during system dump processing.
Depending on the system type, booting may not be where most time is
It's in production with 256MB of RAM? Err. Sure as the dump progresses
more RAM will be freed, but that's hardly production. I think Nathan's
right, any sysadmin who wants predictability will probably double reboot
anyway.
Thats a changeable parameter. Its something we chose for now. It by no
On Wed, 2008-01-09 at 12:44 -0600, Nathan Lynch wrote:
Hi Linas,
Linas Vepstas wrote:
On 08/01/2008, Nathan Lynch [EMAIL PROTECTED] wrote:
Manish Ahuja wrote:
+
+The goal of hypervisor-assisted dump is to enable the dump of
+a crashed system, and to do so from a fully-reset
On 09/01/2008, Nathan Lynch [EMAIL PROTECTED] wrote:
Hi Linas,
Linas Vepstas wrote:
As a side effect, the system is in
production *while* the dump is being taken;
A dubious feature IMO.
Hmm. Take it up with Ken Rozendal, this is supposed to be
one of the two main selling points of
On 09/01/2008, Michael Ellerman [EMAIL PROTECTED] wrote:
Only if you can get at rtas, but you can't get at rtas at that point.
AFAICT you don't need to get at RTAS, you just need to look at the
device tree to see if the property is present, and that is trivial.
You probably just need to
On Wed, Jan 09, 2008 at 08:33:53PM -0600, Linas Vepstas wrote:
Heh. That's the elbow-grease of this thing. The easy part is to get
the core function working. The hard part is to test these various configs,
and when they don't work, figure out what went wrong. That will take
perseverence and
On Wed, 2008-01-09 at 20:47 -0600, Linas Vepstas wrote:
On 09/01/2008, Michael Ellerman [EMAIL PROTECTED] wrote:
Only if you can get at rtas, but you can't get at rtas at that point.
AFAICT you don't need to get at RTAS, you just need to look at the
device tree to see if the property
On 09/01/2008, Olof Johansson [EMAIL PROTECTED] wrote:
On Wed, Jan 09, 2008 at 08:33:53PM -0600, Linas Vepstas wrote:
Heh. That's the elbow-grease of this thing. The easy part is to get
the core function working. The hard part is to test these various configs,
and when they don't work,
On Wed, 2008-01-09 at 22:12 -0600, Linas Vepstas wrote:
On 09/01/2008, Olof Johansson [EMAIL PROTECTED] wrote:
On Wed, Jan 09, 2008 at 08:33:53PM -0600, Linas Vepstas wrote:
Heh. That's the elbow-grease of this thing. The easy part is to get
the core function working. The hard part is
Manish Ahuja wrote:
+
+ Hypervisor-Assisted Dump
+
+ November 2007
Date is unneeded (and, uhm, dated :)
+The goal of hypervisor-assisted dump is to enable the dump of
+a crashed system, and to do so from a
On Tue, 2008-01-08 at 22:29 -0600, Nathan Lynch wrote:
Manish Ahuja wrote:
+
+ Hypervisor-Assisted Dump
+
+ November 2007
Date is unneeded (and, uhm, dated :)
+The goal of hypervisor-assisted dump
Basic documentation for hypervisor-assisted dump.
Signed-off-by: Linas Vepstas [EMAIL PROTECTED]
Signed-off-by: Manish Ahuja [EMAIL PROTECTED]
Documentation/powerpc/phyp-assisted-dump.txt | 129 +++
1 file changed, 129 insertions(+)
Index:
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