Steven Seeger wrote:
Which framebuffer support did you select at kernel level?
What is the output of testsuite/latency while using the VT console?
I'm using the gx1fb framebuffer for the geode. However, since this problem
occurs even when the VT outputting the text is not active, I don't think
it's fb related.
The latency output is just a bunch of numbers. :P
Until those numbers are sane, there is no point in trying anything else though.
Here is some output with the latency -p 500 command, and halfway through it
I put a 100% load on the cpu.
Ok, the testsuite clearly fails on your board, and something in the current setup
prevents any real-time use. .config would help.
== Sampling period: 500 us
== Test mode: periodic user-mode task
warming up...
RTT| 00:00:01 (periodic user-mode task, 500 us period)
RTH|-----lat min|-----lat avg|-----lat max|-overrun|----lat best|---lat
worst
RTD| -2327277| -1766041| -1196976| 0| -2327277|
-1196976
RTD| -3443424| -2882532| -2293218| 0| -3443424|
-1196976
RTD| -4558603| 3176566| -3412343| 0| -4558603|
-1196976
RTD| -5663780| 2061495| -4522950| 0| -5663780|
-1196976
RTD| -6764019| 976449| -5637527| 0| -6764019|
-1196976
RTD| -7885937| -137963| -6750223| 0| -7885937|
-1196976
RTD| -8993661| -1254331| -7868111| 0| -8993661|
-1196976
RTD| -10141655| -2395933| -8979941| 0| -10141655|
-1196976
---|------------|------------|------------|--------|------------------------
-
RTS| -10141655| -277784| -1196976| 0| 00:00:08/00:00:08
--
Philippe.
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