From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from puffin.external.hp.com (puffin.external.hp.com [192.25.206.4]) by dsl2.external.hp.com (Postfix) with ESMTP id B7999482C for ; Wed, 5 Dec 2001 10:29:59 -0700 (MST) Message-Id: <200112051725.KAA19039@puffin.external.hp.com> To: Richard Hirst Cc: parisc-linux@lists.parisc-linux.org Subject: Re: [parisc-linux] 2.4.16-pa15 still POWERFAIL(was 2.4.16-pa12 Power failled) In-Reply-To: Message from Richard Hirst of "Wed, 05 Dec 2001 16:08:31 GMT." <20011205160831.F7051@linuxcare.com> Date: Wed, 05 Dec 2001 10:25:17 -0700 From: Grant Grundler Sender: parisc-linux-admin@lists.parisc-linux.org Errors-To: parisc-linux-admin@lists.parisc-linux.org List-Help: List-Post: List-Subscribe: , List-Id: parisc-linux developers list List-Unsubscribe: , List-Archive: Richard Hirst wrote: > On Wed, Dec 05, 2001 at 11:22:17AM +0100, joel.soete@freebel.net wrote: > This is a bit of debug from my a500, 2.4.16-pa13 > > request_irq(66, 000000001037fd90, 0x0, IO-SAPIC00-L1, 000000001009bc58) > request_irq(66, 000000001037c590, 0x0, powerfail, 0000000000000000) > request_irq(129, 0000000010374ed0, 0x4000000, sym53c8xx, 000000001fe98000) > iosapic_interrupt(): irq 66 line 1 eoi fffffffffed30840, irq_num 129 > POWERFAIL INTERRUPTION ! > > Don't claim to understand this, but it looks like "powerfail" has > requested the wrong irq? Uhm. looks like a shared IRQ. that explains why I see it when the lan is ifconfig'd instead. Does powerfail need an exclusive IRQ in the CPU IRQ domain? I never had the impression any of the HP9000 servers support a soft-power switch. Many of the older servers did support "Host powerfail" - but everything shipped since K-class does not. I think we will need to figure out how to disable this for PAT boxes and for DKR-class. This reminds me: For PAT PDC boxes, we need to write a "PAT Event Handler" which has exclusive IRQ on CPU EIRR bit 19 (numbered bass ackwards). "we" means someone in HP. I don't think any of the documentation for PAT has been published (or will be published anytime soon *sigh*). grant