Ok, so I have built my 440BX-based box, built my driver (from CVS as of
Saturday), build mjpeg tools from the 1.6.1 tar.gz and run lavrec. It
turns out I am a victim of the "Natoma/ZR36057 rev 1" bug. My kernel log
shows:
MJPEG: using 2 V4L buffers of size 128 KB
MJPEG: Host bridge: 440BX - 82443BX Host, enabling Natoma workaround.
MJPEG: Host bridge: 440BX - 82443BX AGP, enabling Natoma workaround.
Buz[0]: ZR36057/Natoma bug, max. buffer size is 128K
And when I run lavrec it says:
**ERROR: [lavrec] Error requesting video buffers: Cannot allocate memory
And I see in my kernel log:
Buz[0]: ioctl BUZIOC_REQBUFS count = 64 size=262144
Buz[0]: jpg_fbuffer_alloc: kmalloc failed for buffer 19
As was apparent I could fix this by passing "-n 19" to lavrec. However,
now I'm nervous that I have only 19 buffers rather than the default 64
(granted I've not actually tried to record anything yet). Is there some
kernel parameter magic I can do to try to ensure that there will be more
contiguous memory available when the driver loads?
--
Jens B. Jorgensen
[EMAIL PROTECTED]
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- Re: [Mjpeg-users] what to do for Natoma/ZR36060 rev 1 bu... Jens B. Jorgensen
- Re: [Mjpeg-users] what to do for Natoma/ZR36060 rev... Ronald Bultje
