Thread (5 messages) 5 messages, 5 authors, 2003-10-08

Re: [lkcd-devel] Re: [PATCH] Poll-based IDE driver

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...
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