lkml.org 
[lkml]   [2006]   [Aug]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [RFC][PATCH 2/9] deadlock prevention core
    Hi!

    > > - We expect that the lots-of-dirty-anon-memory-over-swap-over-network
    > > scenario might still cause deadlocks.
    > >
    > > I assert that this can be solved by putting swap on local disks. Peter
    > > asserts that this isn't acceptable due to disk unreliability. I point
    > > out that local disk reliability can be increased via MD, all goes quiet.
    >
    > Putting swap on local disks really messes up the concept of stateless
    > servers. I suppose you can do some sort of swap encryption, but
    > otherwise you need to scrub the swap partition on boot if you
    > re-purpose the hardware. You also then need to do hardware
    > configuration to make sure the local disks are all setup the
    > same way across all server platforms so the common images can
    > boot.

    We should really encrypt swap with random key generated at boot, for
    all the machine. I believe it is possible (with some non-trivial
    setup) today, but it would be nice to do it automagically.
    Pavel
    --
    (english) http://www.livejournal.com/~pavelmachek
    (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2006-08-25 12:51    [W:0.030 / U:30.600 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site