Date: Sun, 13 Jul 1997 21:06:53 -0700 From: Amancio Hasty <hasty@rah.star-gate.com> To: oliver.fromme@heim3.tu-clausthal.de (Oliver Fromme) Cc: Randall Hopper <rhh@ct.picker.com>, multimedia@FreeBSD.ORG Subject: Re: guspnp9: /dev/dsp close() hangs Message-ID: <199707140406.VAA01095@rah.star-gate.com> In-Reply-To: Your message of "Mon, 14 Jul 1997 04:14:29 %2B0200." <199707140214.EAA16083@elch.heim4.tu-clausthal.de>
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Hi guys,
In sb_dsp_close:
Move down sb_free_irq to after dsp_cleanup.
/* DMAbuf_close_dma (dev); */
/* sb_dsp_command (0xd4); */
dsp_cleanup();
sb_free_irq();
sb16dsp.c:sb16_dsp_close has the same problem.
See if that fixes the sb cards hanging during a close.
Tnks,
Amancio
>From The Desk Of Oliver Fromme :
>
> Maybe this information could be useful in some way...
>
> Randall Hopper wrote:
> > [...]
> > > mpg123 things.mp2
> >
> > -----> APP STARTUP PRINTS:
> > start sb_reset_dsp
> > done RESET 1
> > done tenmicrosec
> > done RESET 0
> > isa_dmastart: channel 5 busy
> >
> > -----> THEN WHEN I CTRL-C, I ALWAYS SEE THIS:
> > dmabuf 2
> > dmabuf 1
> >
> > -----> IF THE /dev/dsp close() DIDN'T HANG, THAT'S IT.
> >
> > -----> BUT IF THE close() HUNG, I SEE THIS LINE AGAIN AND AGAIN, PRI
NTING
> > -----> ONCE EVERY 10 SECONDS:
> > dmabuf 1
>
> Using the soundrivers of 2.2.2 (Vox 2.9, I think) with an
> AWE32, I also experience hangs sometimes when /dev/dsp is
> closed, BUT only for about 10 seconds. It never blocks
> forever (maybe it checks for a timeout).
>
> To be honest, I first suspected a bug in mpg123, but I've
> looked at the respective parts of the code for days, and
> I haven't been able to spot a bug...
>
> Regards
> Oliver
>
> PS: I just released mpg123 0.59k, see http://mpg.123.org/
> Doesn't fix the block-on-close problem though, of course.
>
> PPS: In case you didn't notice, I'm not that much familiar
> with all that sound driver stuff. I assume it's not possible
> to install those newer "guspnp" drivers in 2.2.2, is it?
> Stability is an absolute requirement for me, so I don't want
> to install 3.0-current.
>
> --
> Oliver Fromme, Leibnizstr. 18-61, 38678 Clausthal, Germany
> (Info: finger userinfo:olli@dorifer.heim3.tu-clausthal.de)
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