Re: writing cdhdtape to CD

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Mon, Jun 08, 2009 at 01:38:01AM +0200, Anders Hogrelius wrote:
> 
> On Sun, 7 Jun 2009, Manuel Bouyer wrote:
> 
> >Can you give more details on the issue ? I have NetBSD 5.0 running on a
> >DS20 and several XP1000, and don't have issues with it. All are UP though.
> >
> 
> Sure, no worries. It's been a while since the last time I tried NetBSD on 
> my 264DP and on my CS20's (with DS20L SRM). I believe 3.1 was the last 
> version I really tested installing though I have tried booting later 
> versions too. With the UP kernel access to the harddrive was extremely 
> slow just as you described. Though the disk was unmounted cleanly the 
> first thing that happened was that the installer said that the disk wasn't 
> unmounted cleanly and the installer continued to do an fsck on it. The 
> fsck totally thrashed the existing contents of the disk... I then did an 
> install to the disk in a 164LX which worked flawlessly and I also compiled 
> a MP version of the kernel before putting the disk back into the CS20. 
> Same problems as before, on the first boot with a MP kernel I got a crash 
> just like the one that was described earlier in this thread. Trying to 
> boot a UP kernel resulted in the same thing as with the installer, fsck 
> thrashed the filesystem on the first boot.
> 
> On the 264DP results were a bit different. With the UP kernel the system 
> would run without problems (though without utilizing the full potential of 
> the system). Running with a MP kernel the system was very unstable. 
> Sometimes it would crash at boot time just like the CS20 and other times 
> it would run for days. I could never see a pattern in the crashes except 
> that it usually was a memory management fault just like on the CS20.
> 
> I've been using IDE disks hooked up to IDE-SCSI adapters so I have been 
> able to move the disks between the IDE and the SCSI buses. I was unable to 
> see any difference between the two, the results were the same.
> 
> One thing I have been able to exclude is hardware error though. The box I 
> still have online has been running the latest version of Tru64 24/7 for 
> the last 2 years without a problem.
> 
> I am aware that this description is a bit fuzzy but it is from memory and 
> I havent been trying NetBSD in quite some time now. I do however have a 
> second CS20 that I could use for some more testing when I get back home 
> in a week or two so I can do some more testing if requested.

How much RAM do you have ? My DS20 and XP1000s all have no more than 2G,
that may explain why I don't see these issues.
Also, what SCSI controllers ? I have symbios logic (various) and QLOGIC
(various too).

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--