The problem described in the original posting is known and fixed.
It seems to affect only v5.0 software, since correct execution
was reported on v4.0 by Claudio Tantignone
and on v5.1 by alan_at_nabeth.cxo.dec.com.
The most comprehensive answers came from Pat Lampert
who directed me to the page describing the known problems
for the v5.0 operating system:
http://ftp1.support.compaq.com/public/Digital_UNIX/v5.0/
A solution for the problem is provided in form of a patch,
in one of the following files, depending on which patch kit
is installed:
http://ftp1.support.compaq.com/public/Digital_UNIX/v5.0/ssrt0675u_v50_ssb.tar
(for the original version of Tru64 UNIX 5.0)
http://ftp1.support.compaq.com/public/Digital_UNIX/v5.0/ssrt0675u_v50_bl1.tar
(if the patch kit 1 is installed)
http://ftp1.support.compaq.com/public/Digital_UNIX/v5.0/ssrt0675u_v50_bl14.tar
(if the patch kit 2 is installed)
Unfortunately, the network connection is quite bad so that I
could not download the patch files.
I therefore decided to make an upgrade to v5.0a which arrived
in the meantime and has much less known problems
(
http://ftp1.support.compaq.com/public/Digital_UNIX/v5.0a).
Best regards
Sinisa Segvic
The original post:
:
: A program from the archive of this list regularly crashes
: Tru64 v5.0 installed on an AlphaStation AS 600 5/333
: when run from user mode (of course, I was interested
: in allowing users to mount documentation CDROMs
: without root privileges).
:
: I have isolated the problem:
:
: % cat crash.c
:
: main() {
:
: char* args[20];
: args[0]="/usr/sbin/mount";
: args[1]="-t";
: args[2]="cdfs";
: args[3]="-r";
: args[4]="/dev/disk/cdrom0c";
: args[5]="/cdrom";
:
:
: execve(args[0], args, 0);
:
: }
:
: % cc crash.c
: % a.out
:
: <the screen becomes dark>
:
: trap: invalid memory read access from kernel mode
:
: After that the processor halts.
:
: Of course, the program is incorrect, execve demands
: that the last element of the array of arguments be NULL,
: but the program should not crash the system.
:
: I am quite an unexperienced administrator (started this job
: a few weeks ago) and I am not sure whether it is possible
: that my system is misconfigured.
: However that could hardly be the case since I confirmed
: almost all default configuration options.
:
: Which is the relevant e-mail address for reporting such problems?
:
Received on Wed Nov 08 2000 - 15:24:40 NZDT