Latest -current panic in uaudio_detach() / bus_dmamem_free()
John Baldwin
jhb at freebsd.org
Mon Jun 23 15:52:26 UTC 2014
On Monday, June 23, 2014 12:03:20 am Andrey Chernov wrote:
> On 23.06.2014 6:46, Alexander Kabaev wrote:
> > Please provide us with the information on the actual audio hardware
> > you are using, preferably in form of a dmesg output.
>
> uaudio0: <vendor 0x046d product 0x0990, class 239/2, rev 2.00/0.05, addr 7>
on usbus3
> uaudio0: No playback.
> uaudio0: Record: 16000 Hz, 1 ch, 16-bit S-LE PCM format, 2x8ms buffer.
> uaudio0: No MIDI sequencer.
> pcm7: <USB audio> on uaudio0
> uaudio0: No HID volume keys found.
>
> Thanx, after backing out the patch below this panic is gone. Probably even
> additional b->dmatag NULL check is needed for bus_dmamap_unload() too.
No, buf_addr should only be set if bus_dmamap_load() was called.
--
John Baldwin
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