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    SubjectRe: [Bug #11342] Linux 2.6.27-rc3: kernel BUG at mm/vmalloc.c - bisected
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    On Mit, 2008-08-27 at 18:51 +0100, Jamie Lokier wrote:
    > Bernd Petrovitsch wrote:
    [...]
    > It is, but the idea that small embedded systems go through a 'all
    > components are known, drivers are known, test and if it passes it's
    > shippable' does not always apply.

    Not always but often enough. And yes, there is ARM-based embedded
    hardware with 1GB Flash-RAM and 128MB RAM.

    > > > I'm seriously thinking of forwarding porting the 4 year old firmware
    > > > from 2.4.26 to 2.6.current, just to get new drivers and capabilities.
    > >
    > > That sounds reasonable (and I never meant maintaining the old system
    > > infinitely.
    >
    > Sounds reasonable, but it's vetoed for anticipated time and cost,

    That is to be expected;-)

    [....]
    > > ACK. We avoid MMU-less hardware too - especially since there is enough
    > > hardware with a MMU around.
    >
    > I can't emphasise enough how much difference MMU makes to Linux userspace.
    >
    > It's practically: MMU = standard Linux (with less RAM), have everything.
    > No-MMU = lots of familiar 'Linux' things not available or break.

    ACK. And tell that a customer that everything is more effort and more
    risk and not just "simply cross-compile it as it runs on my desktop
    too".

    Bernd
    --
    Firmix Software GmbH http://www.firmix.at/
    mobil: +43 664 4416156 fax: +43 1 7890849-55
    Embedded Linux Development and Services



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