From owner-cvs-sys  Sat Mar 22 12:51:26 1997
Return-Path: <owner-cvs-sys>
Received: (from root@localhost)
          by freefall.freebsd.org (8.8.5/8.8.5) id MAA29420
          for cvs-sys-outgoing; Sat, 22 Mar 1997 12:51:26 -0800 (PST)
Received: from godzilla.zeta.org.au (godzilla.zeta.org.au [203.2.228.19])
          by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id MAA29397;
          Sat, 22 Mar 1997 12:51:17 -0800 (PST)
Received: (from bde@localhost) by godzilla.zeta.org.au (8.8.3/8.6.9) id HAA11304; Sun, 23 Mar 1997 07:47:58 +1100
Date: Sun, 23 Mar 1997 07:47:58 +1100
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199703222047.HAA11304@godzilla.zeta.org.au>
To: ache@nagual.ru, bde@freefall.freebsd.org
Subject: Re: syscons & time access (was Re: cvs commit:  src/sys/nfs nfs_socket.c nfs_syscalls.c nfs_vnops.c src/sys/ufs/ffs ffs_alloc.c ffs_inode.c ffs_vfsops.c ffs_vnops.c src/sys/ufs/lfs lfs_inode.c lfs_vnops.c src/sys/ufs/ufs ufs_inode.c ufs_readwrite.c ufs_vnops.c src/sys/gnu/ext2fs ext2_alloc.c ext2_extern.h ext2_inode.c ext2_readwrite.c ext2_vnops.c src/sys/i386/isa/pcvt pcvt_kbd.c src/sys/kern init_main.c kern_clock.c sys_pipe.c tty.c src/sys/pci ncr.c src/sys/sys time.h)
Cc: cvs-all@freefall.freebsd.org, CVS-committers@freefall.freebsd.org,
        cvs-sys@freefall.freebsd.org
Sender: owner-cvs-sys@FreeBSD.ORG
X-Loop: FreeBSD.org
Precedence: bulk

>>   Fixed some invalid (non-atomic) accesses to `time', mostly ones of the
>>   form `tv = time'.  Use a new function gettime().  The current version

>syscons.c have a number of non-atomic time accesses too, do you plan to
>fix them too? 

Not soon.  They are all of the form time.tv_sec, which is atomic on i386's,
at least with CC=gcc.

Syscons should use mono_time instead of `time', since `time' may go backwards
or jump forwards.  This bug just causes screen savers to be started to early
or too late.

Bruce