| To: | David Daney <ddaney@avtrex.com> |
|---|---|
| Subject: | Re: Will ll/sc work from user space? |
| From: | "Maciej W. Rozycki" <macro@ds2.pg.gda.pl> |
| Date: | Fri, 19 Sep 2003 13:17:49 +0200 (MET DST) |
| Cc: | linux-mips@linux-mips.org |
| In-reply-to: | <3F6A4E41.1090100@avtrex.com> |
| Organization: | Technical University of Gdansk |
| Original-recipient: | rfc822;linux-mips@linux-mips.org |
| Sender: | linux-mips-bounce@linux-mips.org |
On Thu, 18 Sep 2003, David Daney wrote: > Q: Will ll/sc instructions work from a linux user process ? Yep. > If so What happens if there is a context switch between the two? > > What happens if the memory location is paged out and then back into a > different physical page? Then sc will fail. -- + Maciej W. Rozycki, Technical University of Gdansk, Poland + +--------------------------------------------------------------+ + e-mail: macro@ds2.pg.gda.pl, PGP key available + |
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