Hi,
(This message is posted to both www.rtlinux.org and www.realtimelinux.org).
Has anyone got mbuff 0.7.1 working under SMP with RTlinux 2.2?
Although the system is RedHat 6.1, I started off with a squeaky clean
2.2.14 kernel from ftp.kernel.org. I installed RTLinux 2.2 and the examples
all work fine. I installed mbuff 0.7.1 and the examples work fine.
Now, I upgraded my mbuffex tester and here's what happens:
1. Using Kmem/Umem, everything works as expected. Kmem is a pure Linux
re-scheduling module and Umem the user side application. They share
two memory buffers just fine. So it looks like mbuff works ok in
pure Linux kernel space etc.
2. I upgraded Rmem.c to be used by RTLinux and here's what happens
(after insrtl and insmod of mbuff.o, of course):
a) on at least one occassion, the systems hangs straight after the
insmod of the real-time mbuffex module;
b) on two occassions, I have been able to insmod the real-time
mbuffex module and run the test to successful completion. The
3rd insmod test hangs the system;
c) on one occasion, the insmod blew the system away to a console (non-X)
state with the repeated message: "hda: lost interrupt".
(Is this related to ide0 irq 14 problem via xosview? Unlikely but
suspicious, I think)
Of course, there's nothing in the log file to help.
If you want to take a look at the interim code, the URL is
ftp://orion.tuc.noao.edu/pub/pnd/mbuffex-0.7.1.tgz
Thanks in advance,
+==================================================================+
Phil Daly, NOAO/AURA, 950 N. Cherry Avenue, Tucson AZ 85719, U S A
E-mail: [EMAIL PROTECTED] V-mail: (520) 318 8438 Fax: (520) 318 8360
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