From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-Id: Date: Mon, 29 Apr 2002 12:47:27 +0200 From: "Gerhard TAEUBL" To: Subject: Queue task Problem Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Hallo! I wrote a device driver which handles the SCC in UART mode of a MPC860T for a simple protocol. The protocol start with a byte, the other side send a ack, then the packet will be sent. At last an ack will be send from the receiver. My problem is, that sometimes the bottom half part of my software won't be executed. For example I send the start character, the other side answer with an ack, but nothing else happens, I got an timeout, and there I compare counters for hardware interrupt and bottom half part of software, and they are different. With an terminal program I see, tht that is my fault (the ack would be sent). Does anyone knows this phenomenon? On transmission side I also have sometimes this problem. Thanks in advanced Gerhard ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/