From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailserv2.iuinc.com (qmailr@mailserv2.iuinc.com [206.245.164.55]) by puffin.external.hp.com (8.8.7/8.8.7) with SMTP id HAA16548 for ; Wed, 22 Sep 1999 07:34:13 -0600 Date: Wed, 22 Sep 1999 15:36:31 +0200 From: Philipp Rumpf To: Hai Vo-Ba Cc: rbradetich@uswest.net, parisc-linux@thepuffingroup.com Subject: Re: [parisc-linux] Questions understanding exec_kernel Message-ID: <19990922153631.C5481@suse.de> References: <37E82CE6.3A5DFFB0@uswest.net> <199909221246.GAA29606@hpeshai.fc.hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <199909221246.GAA29606@hpeshai.fc.hp.com>; from Hai Vo-Ba on Wed, Sep 22, 1999 at 06:46:31AM -0600 List-ID: > If I remember right, RFI followed by a NOP is an idiom to tell the CPU > to start fetching instructions from an absolute address pointed to by the > IVA so we usually want to that with interrupts enabled (Q & I bits set). Are you sure ? It never did that on the machines I tested on so far (712, A180C and indirectly 715). Philipp Rumpf