[#4116] Under run error occurs sometimes in BF548-EZKIT in trunk
Submitted By: Vivi Li
2008-05-20 05:40:56 Close Date
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Summary: Under run error occurs sometimes in BF548-EZKIT in trunk
Under run error occurs sometimes in BF548-EZKIT with audio dirver AD1980.
It happens when record while play.
vrec -w -b 16 -s 11000 -t 8 aaa^M
Recording WAVE : 16 bit, Speed 11000 Hz Mono ...^M
root:/> vplay aaa &^M
Playing WAVE : 16 bit, Speed 11000 Hz Mono ...^M
root:/> vrec -w -b 16 -s 11000 -t 4 bbb^M
Recording WAVE sp16oritt Spstd at00usHz eonrr..or
--- Vivi Li 2008-05-21 22:56:51
Here is a workaround: set DMA to higer priority over core when build kernel.
Close this bug.
--- Robin Getz 2008-05-22 10:50:05
Which setting are you changing?
If a default setting needs to be changed, we should change it in the default
settings in svn - not in a test script.
--- Cliff Cai 2008-05-22 22:37:38
This is a global setting,it will affect core's perfomance.
So,I think it's better to set it only if need.
--- Robin Getz 2008-05-23 21:23:14
People can unset it as easy as they can set it.
I would rather the default config have audio working robustly.
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