Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756983AbXEXWdA (ORCPT ); Thu, 24 May 2007 18:33:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752985AbXEXWcu (ORCPT ); Thu, 24 May 2007 18:32:50 -0400 Received: from ug-out-1314.google.com ([66.249.92.168]:45187 "EHLO ug-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752640AbXEXWct (ORCPT ); Thu, 24 May 2007 18:32:49 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:content-type:content-transfer-encoding; b=Jus57FOkW3nM0pJBcKO6qDViXxbRqam6zhb/hwJ+FPKPylb3d7/Noso9ioHrdgHqdlfy35iaDHXhx8A7bB3AwyfpHfG116vg5N38yxBGIIlPyf56GRRZl/8dN245Q2Ux3LOcy5pEgzISMnyxDfqOPAe0M4V8llQLhrfZkNFJ8Xw= Message-ID: <46561287.8020103@gmail.com> Date: Fri, 25 May 2007 02:32:39 +0400 From: Manu Abraham User-Agent: Thunderbird 1.5.0.10 (X11/20070306) MIME-Version: 1.0 To: Roland Dreier CC: Greg KH , linux-pci@atrey.karlin.mff.cuni.cz, linux-kernel Subject: Re: PCIE References: <46543045.3030904@gmail.com> <20070523155958.GA5282@kroah.com> <4654AB40.6060208@gmail.com> <4654BC10.2000808@gmail.com> <4654C85B.6060505@gmail.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 950 Lines: 23 Roland Dreier wrote: > Why does the device come up in a state where it generates a stream of > interrupts as soon as you enable the PCI device? That's somewhat > unusual behavior, although certainly not unheard of. > In fact the device wasn't generating a stream of interrupts when loaded (i guess). It was just that the shared handler was showing all the interrupts that occurred, since i was not looking at the interrupt mask/status. But accessing any registers caused me a flood of interrupts, which froze the system. excessive printing to the console caused a lockup. I am now wondering whether the usage of MSI would help in this case and that i should be using enable_msi before request_irq ? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/