From owner-freebsd-current Fri May 10 20:45:08 1996 Return-Path: owner-current Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id UAA13742 for current-outgoing; Fri, 10 May 1996 20:45:08 -0700 (PDT) Received: from sunrise.cs.berkeley.edu (root@sunrise.CS.Berkeley.EDU [128.32.38.121]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id UAA13736 for ; Fri, 10 May 1996 20:45:05 -0700 (PDT) Received: (from asami@localhost) by sunrise.cs.berkeley.edu (8.6.12/8.6.12) id UAA18849; Fri, 10 May 1996 20:48:11 -0700 Date: Fri, 10 May 1996 20:48:11 -0700 Message-Id: <199605110348.UAA18849@sunrise.cs.berkeley.edu> To: bde@zeta.org.au CC: current@FreeBSD.ORG, nisha@cs.berkeley.edu In-reply-to: <199605110332.NAA09211@godzilla.zeta.org.au> (message from Bruce Evans on Sat, 11 May 1996 13:32:31 +1000) Subject: Re: some more on fast bcopy From: asami@cs.berkeley.edu (Satoshi Asami) Sender: owner-current@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk * I think this is caused by the FPU probe failing. It only happens when * npxdna() returns 0, and npxdna() only returns 1 if the probe failed. * bcopy() is sure to be called at boot time before the npx0 probe, and * this might foul the probe. There must be another bug for the crash to * be so long delayed. I've been saying bcopy() but the code is actually only called from copyin() and copyout(). ;) Satoshi