Re: [lkcd-devel] Re: [PATCH] Poll-based IDE driver
From: Stephen Hemminger <hidden>
Date: 2003-10-08 18:34:55
Also in:
lkml
From: Stephen Hemminger <hidden>
Date: 2003-10-08 18:34:55
Also in:
lkml
On Wed, 8 Oct 2003 17:44:58 +0530 Srivatsa Vaddagiri [off-list ref] wrote:
On Wed, Oct 08, 2003 at 12:50:51PM +0100, Dave Jones wrote:quoted
Why not just use udelay() ? The above code cannot possibly do the right thing on all processors.Since my code is supposed to run when system is crashing, I would like to avoid calling any function in the kernel as far as possible, since the kernel and its data structures may be in a inconsistent state and/or corrupted.
If your kernel context is alive enough to take the dump, then it should be able to call things like udelay() that don't modify any data. If it can't your hosed already...