Xref: utzoo comp.sys.att:6389 comp.unix.wizards:15998
Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!purdue!gatech!csun1!mani
From: mani@csun1.UUCP (Maninder Chawla)
Newsgroups: comp.sys.att,comp.unix.wizards
Subject: Device Drivers
Keywords: AT&T, 3b2, device drivers
Message-ID: <171@csun1.UUCP>
Date: 7 May 89 03:33:55 GMT
Distribution: usa
Organization: Univ. of GA, CS Dept., Athens
Lines: 21

Hi Netters,

I am having a problem writing a device driver for a at&t 3b2, running Unix 2.0.
This is my first attempt to do write a driver.

I get a "PANIC trap occurs" message every time I try to read a text file
after opening in the READ entry point in the device driver. The error message
points to a prblem in MMU (ie memory management unit )

You might think this setup is unusual because this is not a service provided
by the kernel to the driver, but I need to do it.

So my question is why this occurs and what is the way around it?
i.e. how else can I read a file in my device driver.

Thanx

-mani
mani@csun1.cs.uga.edu
or
mani%csun1.cs.uga.edu@gatech.edu