From owner-freebsd-current Thu Sep 24 13:38:44 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id NAA08558 for freebsd-current-outgoing; Thu, 24 Sep 1998 13:38:44 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from dingo.cdrom.com (dingo.cdrom.com [204.216.28.145]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id NAA08533; Thu, 24 Sep 1998 13:38:38 -0700 (PDT) (envelope-from mike@dingo.cdrom.com) Received: from dingo.cdrom.com (localhost.cdrom.com [127.0.0.1]) by dingo.cdrom.com (8.9.1/8.8.8) with ESMTP id NAA00705; Thu, 24 Sep 1998 13:43:16 -0700 (PDT) (envelope-from mike@dingo.cdrom.com) Message-Id: <199809242043.NAA00705@dingo.cdrom.com> X-Mailer: exmh version 2.0.2 2/24/98 To: "Justin T. Gibbs" cc: Mike Smith , bde@FreeBSD.ORG, current@FreeBSD.ORG Subject: Re: options DPT_LOST_IRQ In-reply-to: Your message of "Thu, 24 Sep 1998 14:26:34 MDT." <199809242033.OAA07647@pluto.plutotech.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Thu, 24 Sep 1998 13:43:16 -0700 From: Mike Smith Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > >Yes; the FAST_INTR() code basically looks like: > > > >fastintr: <- entry with PSL_I clear, interrupts masked > > call handler <- handler runs with interrupts masked > > sti <- reenable interrupts > > rti > > But why doesn't the PIC record any interrupts that occur while the > CPU has interrupts blocked in its pending mask? Or is this simply > a problem because the I/O APICs on SMP systems work in some other > strange way? The problem seems to be that the DPT "stops asserting" the interrupt, going by what Eivind said. I presume we're talking about a PCI device here, right? -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message