Date: Sun, 19 Sep 2004 20:13:11 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: das@freebsd.org Cc: nate@root.org Subject: Re: cvs commit: src/sys/dev/fdc fdc.c fdc_isa.c fdc_pccard.c fdcvar.h Message-ID: <20040919.201311.90121088.imp@bsdimp.com> In-Reply-To: <20040920005727.GA3513@VARK.MIT.EDU> References: <20040919051748.GA606@VARK.MIT.EDU> <414DF32F.3000707@root.org> <20040920005727.GA3513@VARK.MIT.EDU>
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In message: <20040920005727.GA3513@VARK.MIT.EDU>
David Schultz <das@FreeBSD.ORG> writes:
: On Sun, Sep 19, 2004, Nate Lawson wrote:
: > David Schultz wrote:
: > >On Tue, Sep 14, 2004, Warner Losh wrote:
: > >
: > >>imp 2004-09-14 07:06:49 UTC
: > >>
: > >> FreeBSD src repository
: > >>
: > >> Modified files:
: > >> sys/dev/fdc fdc.c fdc_isa.c fdc_pccard.c fdcvar.h
: > >> Log:
: > >> Checkpoint the fdc resource changes:
: > >>
: > >> o Allow for up to 3 resource I/O ranges to be given for the floppy
: > >> controller, rather than just two that are allowed for now.
: > >> o Make sure that we can work with either a base address of 0x3f0 or
: > >> 0x3f2.
: > >> o Create new inline functions to access the YE DATA's unique BDCR
: > >> register.
: > >> o Update pccard attachment to add the fd device.
: > >> o Do some minor style(9) polishing.
: > >
: > >
: > >Hmm...this causes my system to hang immediately before the point
: > >where I would expect GEOM to report that it had tasted ad0. Any
: > >ideas what's going on? Below is the resulting kernel message
: > >buffer, truncated due to ata(4) verbosity. This is with
: > >bootverbose, geom.debugflags=7, and debug.fdc.debugflags=0xff. If
: > >you need any other information (e.g. ps output) please let me
: > >know and I'll try to dig up a serial cable.
: >
: > It's likely the geom probe of the floppy media. [...]
:
: Yep. With this commit, fdc gets confused about whether there's a
: disk in there or not, which causes it to deadlock against the
: g_event thread. I've been discussing this with phk and Warner,
: and I believe Warner is working on the problem. Thanks for the hints.
Actually, it only does for the even weirder resource stuff that you
have.
Warner
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