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    SubjectRe: [patch] Real-Time Preemption, -RT-2.6.12-rc1-V0.7.41-00
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    On Sat, 2005-03-19 at 19:50 -0600, K.R. Foley wrote:
    > Lee Revell wrote:
    > > On Sat, 2005-03-19 at 20:16 +0100, Ingo Molnar wrote:
    > >
    > >>the biggest change in this patch is the merge of Paul E. McKenney's
    > >>preemptable RCU code. The new RCU code is active on PREEMPT_RT. While it
    > >>is still quite experimental at this stage, it allowed the removal of
    > >>locking cruft (mainly in the networking code), so it could solve some of
    > >>the longstanding netfilter/networking deadlocks/crashes reported by a
    > >>number of people. Be careful nevertheless.
    > >
    > >
    > > With PREEMPT_RT my machine deadlocked within 20 minutes of boot.
    > > "apt-get dist-upgrade" seemed to trigger the crash. I did not see any
    > > Oops unfortunately.
    > >
    > > Lee
    > >
    >
    > Lee,
    >
    > Just curious. Is this with UP or SMP? I currently have my UP box running
    > PREEMPT_RT, with no problems thus far. However, my SMP box dies while
    > booting (with an oops). I am working on trying to get setup to capture
    > the oops, although it might be tomorrow before I get that done.
    >

    UP. It's 100% reproducible, this machine locks up over and over. Seems
    to be associated with network activity by multiple processes.

    Lee

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