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    SubjectRe: 2.6.3-mm4 / 2.5 Gb memory / sym53c8xx_2 won't boot
    From: Andrew Morton <akpm@osdl.org>
    Date: Wed, Mar 03, 2004 at 03:38:30PM -0800
    > Jurriaan <thunder7@xs4all.nl> wrote:
    > >
    > > > Could you test Linus's current tree? The first link at
    > > > http://www.kernel.org/pub/linux/kernel/v2.5/testing/cset/.
    > > >
    > > > If this bug hasn't hit Linus's tree yet, it will soon do so...
    > > >
    > > It probably will, since it's not in Linus's tree as of
    > >
    > > cset-20040303_0509.txt
    > >
    > > ie 2.6.4-rc1-mm1 + cset-20040303_0509 does boot with
    >
    > You meant 2.6.4-rc1, I assume?
    >
    > > CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1, and 2.6.3-mm4 doesn't.
    >
    > I continue to be stumped. Could you please test a Linus tree, plus
    >
    > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.4-rc1/2.6.4-rc1-mm2/broken-out/bk-scsi.patch
    >
    > and
    >
    > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.4-rc1/2.6.4-rc1-mm2/broken-out/dma_sync_for_device-cpu.patch
    >
    I'm now stumped also. I tested

    2.6.4-rc2 CONFIG.*DMA.*MODE=1: ok
    2.6.4-rc2+bk-scsi CONFIG.*DMA.*MODE=1: ok
    2.6.4-rc2+bk-scsi+dma_sync CONFIG.*DMA.*MODE=1: ok

    then I recompiled a fresh 2.6.3-mm4 kernel from source with
    CONFIG.*DMA.*MODE=1, and it booted also.

    So it appears to (have) be(en) a Heisenbug. It was there, when I
    recompiled, it was gone.

    Oh well,
    Jurriaan
    --
    You aren't going to do anything about it then?
    Of course I am.
    What?
    I'm going to ignore it.
    David Eddings - The Sapphire Rose
    Debian (Unstable) GNU/Linux 2.6.3-mm4 3940 bogomips 1.91 0.84
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