Re: [2.6 patch] i386: always use 4k stacks

[Dave Jones]

On Mon, Nov 14, 2005 at 09:07:48PM -0500, Lee Revell wrote:
 > On Mon, 2005-11-14 at 19:02 -0600, Robert Hancock wrote:
 > > Giridhar Pemmasani wrote:
 > > > Shouldn't I have to prevent scheduler from changing the tasks when executing
 > > > Windows code? Otherwise, kernel gets wrong current thread information,
 > > > which is based on stack pointer. This is the stumbling block for implementing
 > > > private stacks.
 > > 
 > > As long as preemption is disabled when the driver code is executing
 > 
 > Um, but it's really really bad for drivers to do that.

And loading Windows drivers into the kernel isn't ?
I think we're already in no-mans land here.

Remember, we have no clue what those drivers are even doing.
Preemption is the least of its problems.

		Dave

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