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Date:      Sun, 23 Aug 1998 14:37:25 -0400 (EDT)
From:      Andrew Gallatin <gallatin@cs.duke.edu>
To:        "Jordan K. Hubbard" <jkh@time.cdrom.com>
Cc:        freebsd-alpha@FreeBSD.ORG
Subject:   Re: FreeBSD/Alpha make buildworld stops at groff 
Message-ID:  <13792.23270.918856.724787@grasshopper.cs.duke.edu>
In-Reply-To: <9098.903870165@time.cdrom.com>
References:  <13789.49021.995565.325186@grasshopper.cs.duke.edu> <9098.903870165@time.cdrom.com>

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Jordan K. Hubbard writes:
 > > How far do you get, exactly?  Do you have an Intel or Cypress SIO?
 > > (show config from the SRM console prompt will tell you).  
 > 
 > Good question!  ``show config'' just shows "Device: 2, Name: COM1,
 > Type: Embedded, Enabled: Yes, BaseAddr: 3f8, IRQ: 4, DMA: None"
 > [simimar entry for COM2, with the expected addr/IRQ diffs].
 > 
 > Not very instructive on the topic of chipsets and such. :(

I wasn't terribly clear.  I was referring to the PCI chip at bus 0,
slot 7 which handles the ISA bridging..  On some (newer, non-buggy)
miata GL's, its:
     Bus 00  Slot 07: Cypress PCI Peripheral Controller

On the older miata's with the pyxis dma & other bugs, its:

     Bus 00  Slot 07: Intel SIO 82378

Another tip is to make sure your firmware is up-to-date.  I'm running
V6.7-250 Feb 19 1998 11:57:45 (from show version) on my old, buggy
miata.  Yet another tip is to try cold-booting the machine.

 > OK, I've gotten this far now - I'll work on compiling up a gdb on the
 > x86 which understands alpha (Doug sent me a configure line earlier)
 > and start running serial cables. :)

Speaking of this, does anybody know how to recover a serial line on a
3.0-current/i386 host after a gdb remote attach times out?  If I
fumble on setting the baud rate properly, or make some other screwup,
gdb leaves the line 'busy' & I cannot seem to get it back w/o
rebooting my destop machine (which is running a 3.0-current kernel
from sources cvsupped circa July 20th).  This is both with the gdb
from Doug's directory on freefall & with one I built myself.

Nobody has the file open, tip, kermit, etc all fail to open it.  There 
are no lock files that I can find.  A ktrace of tip trying to open it
looks like:

  2406 tip      CALL  open(0x12030,0x2,0xa)
  2406 tip      NAMI  "/dev/cuaa0"
  2406 tip      RET   open -1 errno 16 Device busy

Thanks,

Drew

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