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Rockbox mail archiveSubject: PP502x cache bug and ATA DMA test buildPP502x cache bug and ATA DMA test build
From: Boris Gjenero <boris.gjenero_at_gmail.com>
Date: Fri, 03 Feb 2012 20:17:42 -0500 Hello All! I created a test build for PP502x based devices. You can download it from: http://dl.dropbox.com/u/16662598/Rockbox/pp502x_cache_test/index.html Using it, you can help answer the following questions: 1) Which PP502x chips are affected by the FS#12391 cache bug? Load /pp502x_cache_test/unaltered.ipod or /pp502x_cache_test/unaltered.mi4, run /pp502x_cache_test/pp502x_cache_test.rock and see if it reports mismatches. If the bug is present, you should see mismatches within a few minutes. You can find your CPU type in System -> Debug (Keep Out!) -> View HW info. 2) If the bug is present, is the workaround reliable? Boot normally or load /.rockbox/rockbox.ipod or /.rockbox/rockbox.mi4, and run /pp502x_cache_test/pp502x_cache_test.rock. You shouldn't ever see any mismatches. Run the test for a substantially longer time than what was needed to see mismatches. 3) If the workaround is reliable, is PP502x ATA DMA stable? Use Rockbox normally. Make sure you test database creation and functionality. You can confirm that DMA is being used in System -> Debug (Keep Out!) -> View disk info. More information is available in /pp502x_cache_test/README.txt. If using a sansac200, sansae200, gogearsa9200, gogearhdd6330 or ipodnano1g, read the exceptions section there. You can report your findings to me and I will summarize them here. If you replaced the original hard disk with something different, please also report that information. Best Regards, Boris Received on 2012-02-04 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |