[#4269] sometimes underrun happens in ad1836 in bf537-stamp in 08r1 branch

Submitted By: Vivi Li

Open Date

2008-07-22 03:03:42 Close Date

2008-07-24 07:19:18

Priority:

Medium Assignee:

Cliff Cai

Status:

Closed Fixed In Release:

N/A

Found In Release:

N/A Release:

Category:

N/A Board:

N/A

Processor:

N/A Silicon Revision:

Is this bug repeatable?:

Yes Resolution:

Fixed

Uboot version or rev.:

Toolchain version or rev.:

08r1.5-13

App binary format:

N/A

Summary: sometimes underrun happens in ad1836 in bf537-stamp in 08r1 branch

Details:

Sometimes underrun happens in ad1836 in bf537 in 08r1 branch but it's hard to reproduce.

Attached is the test script to continuously run the same command to reproduce this bug. Please put it in the directory uclinux-dist/testsuites/audio.

root:/> arecord -d 2 |aplay

Recording WAVE 'stdin' : Unsigned 8 bit, Rate 8000 Hz, Mono

Playing WAVE 'stdin' : Unsigned 8 bit, Rate 8000 Hz, Mono

underrun!!! (at least 595552.825 ms long)

underrun!!! (at least 596363.544 ms long)

underrun!!! (at least 597174.607 ms long)

underrun!!! (at least 597985.807 ms long)

underrun!!! (at least 598804.672 ms long)

Follow-ups

--- Cliff Cai 2008-07-22 03:12:50

fix it now,the size of dummy buffer should be multiple of sport's word length.

--- Vivi Li 2008-07-24 08:19:17

OK now. Close it.

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