[comp.unix.xenix] "TRAP" error in XENIX

greg@dekalb.UUCP (Greg Philmon) (05/08/89)

I bought that $39 XENIX that was mentioned a few weeks ago and am having a 
few problems.  It is not really meant to serve any major purpose, beyond
helping me learn more about the Unix OS.  In particular, I keep getting 
some sort of "TRAP" error, followed by a panic and system shutdown <sigh>.

Anyway, it is running on a 1MB 12mhz AT (clone all the way), EGA, 20 MB hard
disk, and 2400 internal modem on COM1.  (yeah, whatta platform for XENIX, eh?)

Below is one of the errors that I get in Xenix, the others are also "TRAP"
errors, but the hex number following "TRAP" (and the registers, of course)
is different.  

TRAP 000D in SYSTEM
ax=0000, bx=0040, cx=0000, dx=0000, si=0039, di=544C,
bp=0372, fl=0212, uds=0018, es=0047,
p=0030:43BC, ksp=0358
panic: general protection trap

Followed by the "Safe to power-off ..." message.

Any help on this would be appreciated.  And, please, no "you-get-what-you-
pay-for" comments :-).

-- 
    ---------------------------------------------------------
    | Greg Philmon  ...gatech!dekalb!greg   CIS: 72261,1724 | 
    ---------------------------------------------------------

chad@lakesys.UUCP (Chad Gibbons) (05/09/89)

In article <495@dekalb.UUCP> greg@dekalb.UUCP (Greg Philmon) writes:
|I bought that $39 XENIX that was mentioned a few weeks ago and am having a 
|few problems.  It is not really meant to serve any major purpose, beyond
|helping me learn more about the Unix OS.  In particular, I keep getting 
|some sort of "TRAP" error, followed by a panic and system shutdown <sigh>.
|
|TRAP 000D in SYSTEM
|ax=0000, bx=0040, cx=0000, dx=0000, si=0039, di=544C,
|bp=0372, fl=0212, uds=0018, es=0047,
|p=0030:43BC, ksp=0358
|panic: general protection trap

	Chances are you have your AT running in the speed which XENIX
does not like.  If your motherboard has a selectable switch, switch it to
the speed it isn't currently at - more often than not, you will be
running at slow speed when you see this error; set high speed.  We had
this problem bother us for a few days until "oh, look this switch isn't
supposed to be like this."  Changing the AT back to 12Mhz fixed the
problems.
-- 
D. Chadwick Gibbons, chad@lakesys.lakesys.com, ...!uunet!marque!lakesys!chad