Re: Problem serial.c on module

On Fri, Sep 28, Tom Rini wrote:

On Fri, Sep 28, 2001 at 11:26:20AM -0700, David A. Gatwood wrote:

quoted

On Friday, September 28, 2001, at 11:05 AM, Tom Rini wrote:

quoted

On Fri, Sep 28, 2001 at 10:41:23AM -0700, David A. Gatwood wrote:

quoted

On Friday, September 28, 2001, at 08:15 AM, Tom Rini wrote:

quoted

On Fri, Sep 28, 2001 at 02:33:01PM +0900, KOBAYASHI R. Taizo wrote:

quoted

I examined this problem and had a question.
Dose it need following branch?
================L5375==
#ifdef CONFIG_ALL_PPC
      /* early PowerMacs would machine check */
      if (_machine == _MACH_Pmac) {
              printk(KERN_INFO "serial.c: nothing to do on
PowerMacs.\n");
              return 0;
      }
#endif
=======================

Some older machines apparently do.  The current 'workaround' in 2_4 is
#if defined(CONFIG_ALL_PPC) && !defined(MODULE).

That's disgusting.  This should be doing the Linux equivalent of setjmp
and trapping the machine check and returning 0.  Hardware probes
shouldn't need hacks like this.  Just my $0.02.

Thats what should be happening.  But apparently it still doesn't on a
few
older machines.   Or it didn't the last time I got an answer out of
Olaf@SuSE.

Sounds like a lowmem_vectors problem or similar.  What machine and
processor?

I think it was a 7x00 with a 601.  But I'm not sure.  Olaf?  Is this a problem
still even?

I will try it again, later.
That hunk wasnt supposed to go into Bens tree.


Gruss Olaf

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