- From: Michael Borland <michael_borland_at_lynceantech.com>
- Date: Sat, 06 Sep 2003 13:47:55 -0700
I'm using an MCC PCI DAS6402/16 on Slackware 9, kernel 2.4.20, gcc version 3.2.2. When I run the mmap demo repeatedly, the computer eventually locks up and has to be rebooted (with the hardware reset switch). How many times I have to run before it crashes is not reproducible. Sometimes it crashes the first time, sometimes only after 50 or more runs. I'm using the ADC only, reading 1000 samples from 32 differential channels with the ADC pacer trigger and the start-acquisition external trigger. I also tried the cmd demo, and it behaves the same way. I recompiled the driver with debugging enabled. Unfortunately, when I look in /var/log/syslog, I don't see the messages from just before the crash. (It's like a print buffer is not getting flushed.) The crash appears to occur right when the comedi device is opened, but I can't be completely certain. Does anyone have a suggestion for how to debug this problem? Thanks--Michael -- Michael Borland phone: (650) 320 8300 x404 Senior Scientist fax: (650) 320 9513 Lyncean Technologies, Inc. michael_borland_at_lynceantech.com P. O. Box 60910 Palo Alto, CA 94306
Received on 2003-09-06Z19:47:55