From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754754Ab2D1SXZ (ORCPT ); Sat, 28 Apr 2012 14:23:25 -0400 Received: from mail-out.m-online.net ([212.18.0.9]:55948 "EHLO mail-out.m-online.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751638Ab2D1SXY (ORCPT ); Sat, 28 Apr 2012 14:23:24 -0400 From: Andreas Schwab To: Larry Finger Cc: Benjamin Herrenschmidt , Paul Mackerras , linuxppc-dev@lists.ozlabs.org, LKML Subject: Re: Regression in 32-bit ppc kernel References: <4F973026.3020103@lwfinger.net> <1335311621.15830.42.camel@pasglop> <4F976352.4060001@lwfinger.net> <1335327081.21961.28.camel@pasglop> <4F98117C.7080309@lwfinger.net> <1335390257.21961.53.camel@pasglop> <4F9ABD67.3060704@lwfinger.net> <1335565573.20866.7.camel@pasglop> <4F9B3398.9060701@lwfinger.net> <1335573757.20866.12.camel@pasglop> <4F9C3252.7020508@lwfinger.net> X-Yow: Place me on a BUFFER counter while you BELITTLE several BELLHOPS in the Trianon Room!! Let me one of your SUBSIDIARIES! Date: Sat, 28 Apr 2012 20:23:15 +0200 In-Reply-To: <4F9C3252.7020508@lwfinger.net> (Larry Finger's message of "Sat, 28 Apr 2012 13:09:22 -0500") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.96 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Larry Finger writes: > I have done a little more debugging. The problem is definitely coming from > drivers/tty/serial/pmac_zilog.c. I am getting ChanB interrupts while open, > which causes the following code segment to return IRQ_NONE: > > if (r3 & (CHBEXT | CHBTxIP | CHBRxIP)) { > if (!ZS_IS_OPEN(uap_a)) { s/uap_a/uap_b/? Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different."