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Date:      Sat, 28 Oct 2006 17:21:47 +0900
From:      Pyun YongHyeon <pyunyh@gmail.com>
To:        Nikolas Britton <nikolas.britton@gmail.com>
Cc:        freebsd-multimedia@freebsd.org
Subject:   Re: Status of VIA Envy24 audio controller
Message-ID:  <20061028082147.GB44390@cdnetworks.co.kr>
In-Reply-To: <ef10de9a0610280043x570c7b81tfd93a456038154fc@mail.gmail.com>
References:  <200606072039.13422.shoesoft@gmx.net> <8103ad500607180035t50633780wbf585805464b8696@mail.gmail.com> <787520ee0607180732r6bcb1ae4h1591230d2db366a@mail.gmail.com> <200610111331.39605.lrntct@gmail.com> <8103ad500610111048v756778c6pcac4006746ec3f0a@mail.gmail.com> <ef10de9a0610280043x570c7b81tfd93a456038154fc@mail.gmail.com>

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On Sat, Oct 28, 2006 at 02:43:53AM -0500, Nikolas Britton wrote:
 > Hey Konstantin, I think I found a bug in the code. If I boot FreeBSD
 > with verbose logging the envy24 driver will panic the system during
 > the boot process. fatal trap 12, page fault, and something about
 > "envy24(play): setmap; xxxxx", I'd have to build a debug kernel etc.
 > if you want the full message and backtrace but this should be easy to
 > reproduce. I'm using envy24 sources from -CURRENT that I manually
 > MFC'd to FreeBSD 6.2-PRERELEASE. Oh... I'm using an M Audio Audiophile
 > 2496.
 > 

I saw the panic on envy24ht(4) too and sent a mail to Konstantin but
got no reply yet. With WITNESS enabled kernel it shows several LORs
and panicked due to use of recursed mutex(channel lock can't be
acquired recursively). I guess correct fix could be done by moving
buffer resizing code to channel_setblocksize method instead of
channel_setformat method. Unfortunately I haven't have free time
to investiage further due to msk(4) work and still have little time. :-(

-- 
Regards,
Pyun YongHyeon



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