[pxc] smp 2.4.x oops

[Alessandro Rubini]

Hi.

> For what it is worth, I had a problem when I put 2 PCI PXC200 cards and
> a US Robotics PCI Modem on the same uniprocessor system.  The modem and
> one PXC200 card wound up sharing an interrupt.

Yes, interrupt sharing didn't quite work. It was fixed here (cvs log):

  revision 1.38
  date: 2001/06/22 16:53:19;  author: rubini;  state: Exp;  lines: +2 -2
  keep silent for share interrupts (thanks Espen Halsaa Albrektsen)

This is just before 0.30-beta. You can apply the patch to an earlier version
if you want:

RCS file: /data/cvs/pxc/Attic/main.c,v
retrieving revision 1.37
retrieving revision 1.38
diff -u -d -r1.37 -r1.38
--- main.c      2001/06/22 16:42:27     1.37
+++ main.c      2001/06/22 16:53:19     1.38
@@ -444,8 +444,8 @@
     PDEBUG("\n");
     /* This is a shared handler: if not ours, return */
     status = PX_READ32(dev, BT848_INT_STAT);
-    if ( status == 0) {
-        PDEBUG("isr: irq %i: not mine\n",irq);
+    if ( (status & PX_DEFAULT_IRQ_MASK) == 0) {
+        PDEBUGG("isr: irq %i: not mine\n",irq);
         return;
     }

> 
> While I'm here, I'll suggest a change to  pxc_live .
> The line
> 	set imgfile /tmp/bla.pgm
> 
> sets the name of an intermediate file to a constant value.  That means

that we have a serious security error. I'm going to fix it using
mktemp as it should have been forever

/alessandro