> I believe I was able to do this without locking up, but I had > to use the SDIO driver in patch set 45 and an SDHC class6 > device to get higher throughput. I think Chris is correct > about you not having enough throughput.
If you cat /proc/meminfo, have a look at the "Dirty:" and "Writeback:" lines when your app starts running and then as it starts to stall. On a MIPS-based emebedded linux system I used this to see that I could not write to card fast enough, the Writeback: line would keep growing: these are the pages the kernel is actively trying to write out. Dirty: are pages that are written but buffered and not trying to be written yet. Not sure it is the same on DM355 but worth a look. If Writeback: starts climbing and you app then stalls I would point the finger at write throughput. -- Jon Povey, Design Engineer [EMAIL PROTECTED] | +44(0)1280 825983 Racelogic is a limited company registered in England. Registered number 2743719 . Registered Office Unit 10, Swan Business Centre, Osier Way, Buckingham, Bucks, MK18 1TB . The information contained in this electronic mail transmission is intended by Racelogic Ltd for the use of the named individual or entity to which it is directed and may contain information that is confidential or privileged. If you have received this electronic mail transmission in error, please delete it from your system without copying or forwarding it, and notify the sender of the error by reply email so that the sender's address records can be corrected. The views expressed by the sender of this communication do not necessarily represent those of Racelogic Ltd. Please note that Racelogic reserves the right to monitor e-mail communications passing through its network _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
