RE: [Linux-ia64] Dump driver module

From: Howell, David P <>
Date: 2003-05-13 23:29:05
Have you looked at the LKCD project? It supports ia64 and does about
what you are doing on the dump side, and has dump analysis tools.

If you've already considered this just delete this.

Dave Howell

These are my opinions and not official opinions of Intel Corp.

David Howell
Intel Corporation
Telco Server Development
Server Products Division
Voice: (803) 461-6112  Fax: (803) 461-6292

Intel Corporation
Columbia Design Center, CBA-2
250 Berryhill Road, Suite 100
Columbia, SC 29210

-----Original Message-----
From: Bruno Vidal [] 
Sent: Tuesday, May 13, 2003 3:03 AM
Subject: [Linux-ia64] Dump driver module

	Hi all.
I've already wrote a dump modules driver for linux-parisc.
This module goal is to create a memory image on a swap area, and
at reboot time to save it to disk with all kernel modules, in
order to analyze it after by "support" people with tools like
gdb/p4. The problem while dumping is that the dump modules
cannot trust anymore the system, so dumping means: no interruption,
no disk driver, no buffer, nothing. The solution is to use low level
call. For parisc I use the IODC calls, for ia64 I think I'll
use the EFI calls. My questions:
-do you think it is a "good" and realistic solution.
-because I think "yes", does exist somewhere an example of
reading/writing with EFI call on disk using BLOCK IO. I've already
looked in elilo, but it seems that it use FS access.


	Vidal Bruno, (770-4271)
         SSD-HA Team, HP-UX & LINUX Support

Linux-IA64 mailing list
Received on Tue May 13 06:29:10 2003

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