isp driver not 64 bit?

Peter Wemm peter at
Tue Nov 30 12:22:31 PST 2004

On Tuesday 30 November 2004 11:39 am, Wilko Bulte wrote:
> On Mon, Nov 29, 2004 at 08:05:39PM -0500, freebsd-list at
> wrote..
> > After a bunch of frustrating debugging, I've tenatively come to the
> > conclusion that the isp(4) driver is not 64 bit safe --- at the
> > very least insofar as the amd64 platform is concerned.
> Side note:  isp(4) has been in use for years on Alpha, and I do not
> recall having seen problems like yours on it.  Mind you, not much FC
> connections I ever used on it.  The only thing critical for success
> on Alpha is loading ispfw.ko *always*.  Matt (mjacob) has noted that
> multiple times, and he is absolutely right.
> Wilko

I haven't seen an alpha with more than 2G of ram that we booted on.  Is 
it possible that isp has never been tested with >4G ram?

Secondly..  what release is this on?  I'm wondering if the horrific 
busdma bugs in 5.3-RELEASE might be a problem if the machine does have 
>4G ram.

Third, is this a machine ram size problem or a disk volume size problem?  
The original post was about a 131G FC volume and calculating the wrong 
number of sectors and the wrong sector size...

Peter Wemm - peter at; peter at; peter at
"All of this is for nothing if we don't go to the stars" - JMS/B5

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