From owner-freebsd-arch Sun Dec 5 6:13:49 1999 Delivered-To: freebsd-arch@freebsd.org Received: from ns1.yes.no (ns1.yes.no [195.204.136.10]) by hub.freebsd.org (Postfix) with ESMTP id 5CFB714C85 for ; Sun, 5 Dec 1999 06:13:46 -0800 (PST) (envelope-from eivind@bitbox.follo.net) Received: from bitbox.follo.net (bitbox.follo.net [195.204.143.218]) by ns1.yes.no (8.9.3/8.9.3) with ESMTP id PAA08979 for ; Sun, 5 Dec 1999 15:13:41 +0100 (CET) Received: (from eivind@localhost) by bitbox.follo.net (8.8.8/8.8.6) id PAA02138 for freebsd-arch@freebsd.org; Sun, 5 Dec 1999 15:13:40 +0100 (MET) Received: from mailman.zeta.org.au (mailman.zeta.org.au [203.26.10.16]) by hub.freebsd.org (Postfix) with ESMTP id 9892514C85 for ; Sun, 5 Dec 1999 06:12:51 -0800 (PST) (envelope-from bde@zeta.org.au) Received: from bde.zeta.org.au (beefcake.zeta.org.au [203.26.10.12]) by mailman.zeta.org.au (8.8.7/8.8.7) with ESMTP id BAA03452; Mon, 6 Dec 1999 01:17:32 +1100 Date: Mon, 6 Dec 1999 01:12:08 +1100 (EST) From: Bruce Evans X-Sender: bde@alphplex.bde.org To: Martin Cracauer Cc: Marcel Moolenaar , freebsd-arch@freebsd.org Subject: Re: cvs commit: src/sys/i386/include signal.h In-Reply-To: <19991205135624.A4009@cons.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > > > Decisions in order of importance: > > > - Do you accept bumping mcontext_t to 512 bytes? > > > > No, I'll accept ucontext_t to be bumped to a nice round number (say 512 > > bytes) and have the extra space used by mcontext_t :-) > > I'm afraid that is not useful, since there are only 64 bytes left > (with FPU status already there), not enough to keep this extension > scheme running for future extensions. > > What about 4K? :-]]] Arrgh :-). Remember that the whole struct must be bzeroed to prevent leaking kernel data. I think I prefer a variable sized "struct" like struct dirent. Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message