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    SubjectRe: tty-related oops in latest kernel(s)?
    On 5/30/07, Tero Roponen <teanropo@jyu.fi> wrote:
    > Hmmm, I just found something interesting. In 2.6.21.3 the /sbin/init
    > gets corrupted when I watch the video!
    >
    > $ cp /sbin/init init.before
    > $ mplayer kiwi.flv
    > $ cp /sbin/init init.after
    >
    > The sha1sums are here:
    >
    > 52c8d643057619cbe137b8e69d4709ce3bdd832d init.after
    > 8efc7864a5b535a9e336fa82e9d7f112f3d956c1 init.before
    >
    > It seems that something corrupts memory somewhere...

    To debug this a bit further:

    $ od -a -t x1 -v init.after > init.after.dump
    $ od -a -t x1 -v init.before > init.before.dump
    $ diff -u init.before.dump init.after.dump | less

    -0011340 nul nul nul e9 f0 fe ff ff ff % < soh enq bs h 80
    - 00 00 00 e9 f0 fe ff ff ff 25 3c 01 05 08 68 80
    +0010000 y ack nul nul y ack nul nul y ack nul nul y ack nul nul
    + 79 06 00 00 79 06 00 00 79 06 00 00 79 06 00 00
    +0010020 y ack nul nul y ack nul nul y ack nul nul y ack nul nul
    + 79 06 00 00 79 06 00 00 79 06 00 00 79 06 00 00
    +0011340 y ack nul nul y ack nul nul ff % < soh enq bs h 80
    + 79 06 00 00 79 06 00 00 ff 25 3c 01 05 08 68 80

    The file at offset 0010000 - 0011348 is overwritten with the byte
    pattern 79 06 00 00.

    Do you see anything in the logs or is this a silent corruption? Did
    you see this corruption with 2.6.19 or 2.6.22-rc3?
    -
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