*BSD News Article 23773


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From: nuggets@cs.tu-berlin.de (Lars Hentschke)
Newsgroups: comp.os.386bsd.bugs
Subject: Re: [FreeBSD1.0] panic trap 19 ???
Date: 12 Nov 1993 10:23:09 GMT
Organization: Technical University of Berlin, Germany
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Lars Hentschke (nuggets@cs.tu-berlin.de) wrote:
: Hi

: I'm running FreeBSD1.0-RELEASE on
: 486DX50 16Mb AHA1542b AtiGraphicsUltra1MB with busmouse
: lpt1,sio0,sio1,ed0,sd0,sd1

: On heavy traffic (make install on tex-package) 
: between sd0(240-quantum) and sd1(540 seagate) my
: kernel escapes with trap 19.
: autoboot, fsck means ok - nothing lost
: same action again (make install) some points later my
: kernel escapes with trap 19
: autoboot, fsck means ok - nothing lost
: and again make install ... same trap
: i turn power off and wait some minutes, 
: switch turbo down to 16MHz and try again, it
: works.
: now i switch turbo up to 50MHz and try again, it
: works too ... ???????@#$%!&@^%%???????

: strange thing ... what is trap 19 ? 
: is anywhere a doc for trap numbers ?

: (i'm using my computer very careful at this moment to
:  get rid off heavy traffic and trap 19 :-| )

: Bis denne ... Lars!
:  

Ok, after a few answers to this posting i've "half-solved" this
problem: (thanx for mails)
AHA1542B uses some factory default settings like SCSI-Parity=ON
I've moved jumpers on SEAGATE to parity=on too.
Quantum's disk can't be jumpered for any parity.
This may cause a crash!
Now someone told me, that quantum uses no parity.
Thats why i switch all to parity=off.

hmmm 1 day heavy traffic
(X up, X down, X up, Xdown, ... and continously compiling): 
   stable, but sometimes:
   "/386bsd: NMI ... port ...".

What's this?

Bis denne ... Lars.