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grant123
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Joined: 23 Mar 2005
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 Posted: Wed Jan 29, 2014 8:04 pm Post subject: USB buffer underruns |
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| I'm getting USB buffer underruns on 3.4 which I have to stick with due to old binary video drivers. The buffer underruns disappear if the system is under load such as when compiling a kernel. I have CONFIG_CPU_FREQ=n, CONFIG_CPU_IDLE=n, and acpi=off. Where else should I look to fix this? |
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grant123
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| Posted: Wed Jan 29, 2014 11:22 pm Post subject: |
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I also get a lot of these with USB debug turned on:
ehci-omap.0: detected DataBufferErr |
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grant123
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Joined: 23 Mar 2005
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| Posted: Thu Jan 30, 2014 7:44 pm Post subject: |
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| I think it's memory activity or possibly I/O that prevents the USB buffer underruns. What can I do to keep my memory and SD card from falling asleep? |
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Kernel & Hardware
