Re: sane-1.0.2 broken with SMP support under linux ?

From: Douglas Gilbert (
Date: Sat Jul 08 2000 - 19:46:26 PDT

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    "Bjoern A. Zeeb" wrote:
    > Hi,
    > I just installed a second prozessor and turned SMP support on
    > in my linux-2.2.16. Since then (x)scanimage refusing to work.
    > gimp and other stuff just running fine++;-)
    > (x)scanimage seem to go in an endless loop not consuming a lot
    > of resources but nearly hanging X and any consoles or even network
    > connections very slow then.
    > Booting an old non-SMP kernel p.ex. 2.2.9 and things start
    > working again. (sorry, I do not yet have a working 2.2.16 nonSMP)
    > Is this a known problem with SMP or with 2.2.16 ?
    > Did anyone see same problems ? Is there a solution besides booting my
    > old kernel every time I wanna scan ? (I would like to uptime that
    > machine)

    This turned out to be a problem with the sym53c416
    driver and sg in lk 2.2.16 , not a problem with SMP.
    Basically the sg driver in lk 2.2.16 breaks the
    sym53c416 driver. This problem is not found prior to
    lk 2.2.16 and will be fixed in lk 2.2.17 . For those
    who need a patch see the table in this page:

    Doug Gilbert

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