The following reply was made to PR kern/46537; it has been noted by GNATS.
From: "LiuKang" <lazykang@hotmail.com>
To: <freebsd-gnats-submit@FreeBSD.org>, <delphij@hotmail.com>
Cc: <emoore@FreeBSD.org>, <re@freebsd.org>
Subject: Re: kern/46537: amr(4) hangs system on -CURRENT or make panic, and conditionally
Date: Thu, 9 Jan 2003 13:11:35 +0800
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I tried to enable debug option in amr driver by adding :"CFLAGS= -O
-pipe -DAMR_DEBUG COPTFLAGS= -O -pipe -DAMR_DEBUG" in /etc/make.conf and
add some printf() in amr.c for debug. I think I find the problem , but I
do not know how to solve it.
In amr.c (Revision 1.38)
Line 1008: while(sc->amr_mailbox->mb_nstatus == 0xFF);
The value of sc->amr_mailbox->mb_nstatus is always 255, it seems that
amr card should change the value of mb_nstatus itself. (my card is dell
PERC3/DC)
In pr 45698 http://www.freebsd.org/cgi/query-pr.cgi?pr=45698 I find
there is the same problem in HP's raid card on 5.0.
5.0 is about to release, device amr is widely used in servers, I think
this problem should be considered as critical.
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