From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Mosberger Date: Wed, 14 May 2003 02:40:50 +0000 Subject: Re: [Linux-ia64] Dump driver module Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org >>>>> On Wed, 14 May 2003 12:32:17 +1000, Martin Pool said: Martin> So for a really reliable dump, you'd want to check and "lock Martin> down" these variables at startup into a region of memory not Martin> easily changed by the kernel, and accessible by EFI. NVRAM? Martin> I don't know if there's anything suitable on IPF. EFI provides (persistent) environment variables for this purpose. Don't know how well they're protected, typically, but that's probably more of an implementation issue than anything else. Martin> It would be an interesting project, although since network Martin> dumps run a lower risk of clobbering filesystems they're Martin> probably a smarter design. It would be cool to do it in Martin> EFI, if that's possible. "Smart" is relative. I'm typing this on an Itanium box which doesn't have anything on the network that could serve as a dump device (it's own disk would be fine, though). --david