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Date:      Mon, 03 Dec 2001 16:54:55 -0800
From:      Lars Eggert <larse@ISI.EDU>
To:        Bernd Walter <ticso@cicely8.cicely.de>
Cc:        n_hibma@FreeBSD.ORG, hackers@FreeBSD.ORG
Subject:   Re: Success! [with patch] (was Re: umass & ATAPI)
Message-ID:  <3C0C1EDF.2030205@isi.edu>
References:  <3C0BC364.9080904@isi.edu> <20011203213300.H63943@cicely8.cicely.de> <3C0BE3E7.4010003@isi.edu> <20011203220224.I63943@cicely8.cicely.de> <3C0C0867.6090209@isi.edu> <20011204010945.J63943@cicely8.cicely.de>

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Bernd Walter wrote:

> Are you shure you need to change the #if 0?
> Especialy the first should only have an effect on different devices.
> Can you please try with both to default and if that failed with
> the first on default.


Sure!


With both = 0, I get:

umass0: Unsupported command protocol 5
ugen0: ASAHI PENTAX OPTIO 430, rev 1.00/10.00, addr 2

With the first = 0 and the second = 1, everything works as before, so I 
agree that the first block probably doesn't matter. (I simply enabled 
everything that said "ATAPI" when I made the change.)

However: I found that I sometimes get kernel crashes when attaching the 
camera, after these messages (copied by hand, may have typos):

umass0: ASAHI PENTAX PENTAX OPTIO 430, rev. 1.00/10.00, addr 2, 8070i 
(ATAPI) over CBI
umass-sim:0:-1:-1:XPT_PATH_INQ:.
umass0:0:0:-1: Attached to scbus0 as device 0
scbus0: scanning for umass0:0:0:-1
umass-sim:0:-1:-1:XPT_PATH_INQ:.
umass0:0:0:0::XPT_PATH_INQ:.
umass0:0:0:0::XPT_PATH_INQ:.
umass0:0:0:0::XPT_SCSI_IO: cmd: 0x12, flags: 0x40, 6b cmd/36b data/18b sense
umass-sim:0:1:0:func_code 0x0004: Invalid target (no wildcard)
umass0: Handling CBI state 10 (CBI Command), xfer=0xc3eb6800, 
NORMAL_COMPLETION

These crashes happen only one the first attach (subsequent ones are fine 
*if* the first one succeeded), and not always on the first one.

The strange thing is that they *only* seem to happen when I attach right 
after bootup *before* anyone logs in. After someone logs in, it never 
crashed (yet). It also doesn't crash if the camera was attached *during* 
boot.

Any clues? (Can't produce a crashdump, kernel doesn't enter DDB when 
crashing).

Lars
-- 
Lars Eggert <larse@isi.edu>               Information Sciences Institute
http://www.isi.edu/larse/              University of Southern California


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