From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 9 Aug 2001 02:50:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 9 Aug 2001 02:50:35 -0400 Received: from web20106.mail.yahoo.com ([216.136.226.43]:11531 "HELO web20106.mail.yahoo.com") by vger.kernel.org with SMTP id ; Thu, 9 Aug 2001 02:50:23 -0400 Message-ID: <20010809065034.82696.qmail@web20106.mail.yahoo.com> Date: Wed, 8 Aug 2001 23:50:34 -0700 (PDT) From: Venu Gopal Krishna Vemula Subject: Problem on Interrupt Handling To: linux-kernel@vger.kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, I am developing a linux device driver for a serial communication adapter which is based on interrrupt driven IO, top half handles registering the Immediate task queue, bottom half performs the actual task But after some time 'RxFull' interrupts are not comming. This is happening after I got an interrupt which tells "CPU not responding, RFIFO is FULL". ALl other types interrupts(includes TxEmpty and Modem interrupts) are Ok... The above problem is solving when ISR0 (interrupt status register which contains RXtype interrupts) and enable ISR0, RxFull interrupt is again comming . In my UART(Serial communication Controller,) RxFull has high priority and then TxEmpty.Both RxFull and TxEmpty share same IRQ line. No other device is sharing the IRQ line. I would appreciate if you can help solving this problem. regards, Vvgkrishna_78@yahoo.com __________________________________________________ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/