Hi,
The note above __switch_to macro in i386/kernel/process.c says that we no
more use hardware context switching as some problems in recovering from
saved state that is no longer valid. (I am peeking into 2.2 kernel). Now I have
following questions
1) What exactly is meant by '
[EMAIL PROTECTED] wrote:
> 1) What exactly is meant by ' stale segment register values' in the note.
> 2) In the above macro, I think we recover gracefully from error
>condition while recovering fs and gs segment registers . The
>loadsegment(fs,next->tss.fs) and loadsegment(gs,next->tss.gs
Jamie Lokier <[EMAIL PROTECTED]> on 04/06/2001 03:18:13 PM
To: Amol Lad/HSS@HSS
cc: [EMAIL PROTECTED]
Subject: Re: __switch_to macro
[EMAIL PROTECTED] wrote:
> 1) What exactly is meant by ' stale segment register values' in the note.
> 2) In the above mac
[EMAIL PROTECTED] wrote:
> There's one thing that confuses me: don't you get a segment_not_present
> fault? If so, traps.c's do_segment_not_present doesn't appear to search
> the exception table, and the code in loadsegment would not work.
>
> >>> well.. I peeked into traps.c.. I do seem a call
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