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Date:      Tue, 4 Jan 2000 09:27:54 +0000 (GMT)
From:      Doug Rabson <dfr@nlsystems.com>
To:        Pascal Hofstee <daeron@Wit401305.student.utwente.nl>
Cc:        freebsd-current@freebsd.org
Subject:   Re: NewPCM causes kernel panics !
Message-ID:  <Pine.BSF.4.10.10001040927180.943-100000@salmon.nlsystems.com>
In-Reply-To: <20000104014046.A769@shadowmere.student.utwente.nl>

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On Tue, 4 Jan 2000, Pascal Hofstee wrote:

> Hi, With CURRENT sources updated earlier today ... my system now
> crash-and-burns when trying to play audio.
> 
> i have foudn these messages in /var/log/messages:
> 
> Jan  4 01:30:26 shadowmere /kernel: gusc0: <Gravis UltraSound MAX> at port
> 0x220,0x320-0x327,0x32c-0x333 irq 5 drq 1,3 flags 0x13 on isa0
> Jan  4 01:30:26 shadowmere /kernel: pcm0: <GUS CS4231> on gusc0
> Jan  4 01:30:26 shadowmere /kernel: bus_dmamap_load: Too many segs! buf_len
> = 0xdf00
> Jan  4 01:30:26 shadowmere /kernel: bus_dmamap_load: Too many segs! buf_len
> = 0xdf00
> 
> If any more info is needed let me know.

This looks like a buffer which spans >1 non-contiguous physical ranges.
Was the buffer allocated with contigmalloc?

--
Doug Rabson				Mail:  dfr@nlsystems.com
Nonlinear Systems Ltd.			Phone: +44 181 442 9037




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