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    Subject[patch] Real-Time Preemption, -RT-2.6.10-rc1-mm3-V0.7.18

    i have released the -V0.7.18 Real-Time Preemption patch, which can be
    downloaded from:

    http://redhat.com/~mingo/realtime-preempt/

    this release includes fixes and cleanups.

    Changes between -V0.7.12 and -V0.7.18:

    - merged to 2.6.10-rc1-mm3

    - fixed the e1000 xmit warnings reported by Amit Shah. Same fix for tg3
    too.

    - added irq-latency fix from Thomas Gleixner: re-enable interrupts
    before adding timings to the entropy pool.

    - fixed excessive ksoftirqd overhead during outgoing TCP traffic.
    ksoftirqd kept getting re-woken while it had no way to progress.

    - added upstream fix from Andi Kleen for the vmalloc bug causing module
    load problems/crashes. Added ipc/shm fix too.

    Changes between -V0.7.1 and -V0.7.12:

    - big source level cleanups: completely rearranged the mutex type
    definitions and source files, to make it reflect the code. Made
    all locking objects based on a new, central lock type: struct
    rt_mutex. This type is never exposed externally, it is internal to
    the RT code. Unified all the RT locking code in kernel/rt.c, this
    also simplified and sped things up. Undid collateral damage to the
    generic rwsem code - it is now untouched and independent of the RT
    code.

    - rearranged the way spinlocks interact with the RT code and cleaned
    up the RT spinlock definitions. Found and fixed a bug in the process:
    rwlocks were dropping the BKL upon contention.

    - small x86 speedup: call __schedule not preempt_schedule_irq from
    work_resched.

    - ported PREEMPT_RT to x64. This resulted in the generalization of some
    of the x86 changes.

    - hopefully fixed fbcon kernel logging

    - hacked reiser4 to make it work on PREEMPT_REALTIME.

    - dropped the swap-layout-improvements patch. While it was working fine
    it's not necessary for latencies anymore under the PREEMPT_REALTIME
    approach, and the swap-patch was getting intrusive.

    - fixed preemption-bug in drain_cpu_caches() on SMP [bug introduced by
    PREEMPT_REALTIME]

    - new attempt at getting rid of the networking related deadlocks

    - selinux deadlock fix and RCU-code conversion to RT semantics

    to create a -V0.7.18 tree from scratch, the patching order is:

    http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.9.tar.bz2
    http://kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6.10-rc1.bz2
    http://kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.10-rc1/2.6.10-rc1-mm3/2.6.10-rc1-mm3.bz2
    http://redhat.com/~mingo/realtime-preempt/realtime-preempt-2.6.10-rc1-mm3-V0.7.18

    Ingo
    -
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