CI20 freezes

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This topic contains 3 replies, has 2 voices, and was last updated by  ZubairLK 2 years, 4 months ago.

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  • #48810

    Larry
    Member

    Hi everyone,

    I’ve had my CI20 for a day over a month now. While I’ve been pleased with it, overall, I’ve run into an odd problem.

    Lately I can’t get it to run for a sustained period of time. Sometimes it’ll run for a couple hours, and then freeze up. I can power cycle and get it back up.

    At first I thought that maybe I was installing software that was causing it, but today I reflashed to the latest Debian 7, started an upgrade, and it froze before finishing that.

    Any thoughts?

    Thanks!

    #48828

    ZubairLK
    Member

    Hi Larry,

    Welcome to the forum.

    I apologize for the board freezing up.
    We’ve had some boards fail with an issue with the memory chip.

    Could you install memtester and run it?
    on the ci20.

    > apt-get install memtester
    > free
    This command will show how much free memory left.
    > memtester 850M

    This will thrash the memory bus.

    We are looking at tweaking DDR parameters in software for a fix..

    Do you have an sd card to run memtester using the image here?
    This image has some tweaked parameters.
    http://elinux.org/CI20_Distros#Buildroot

    Regards,
    ZubairLK

    #48835

    Larry
    Member

    Hi ZubairLK,

    Thanks for the help. When I ran memtester from the normal setup, I could never seem to get it past either the Stuck Address test or the Random Value Test without it freezing up, but no error was reported.

    When I ran the buildroot version, it ran much better, getting all the way to Checkerboard before showing some errors:

    Checkerboard: setting 36 FAILURE: 0xaaaaaaaa != 0x55555555 at offset 0x15af4cfc.
    FAILURE: 0x55555555 != 0xaaaaaaaa at offset 15af4d00.
    Bit Spread: testing 4 FAILURE: 0xffffffaf != 0x00000050 at offset 0x07722c80.
    FAILURE: 0x00000050 != 0xffffffaf at offset 0x07722c84.
    Bit Flip: setting 48

    At this point the CI20 froze up.

    Thanks,
    Larry

    #48928

    ZubairLK
    Member

    Hi Larry,

    Apologies for the failures you are seeing.

    Please request an RMA by sending an email to Sales.Support@imgtec.com

    Make sure you send a link to this forum post with the request.

    Regards,
    ZubairLK

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