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Subject[patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U9.3

i have released the -U9.3 Real-Time Preemption patch, which can be
downloaded from:

this too is a fixes-only release.

Changes since -U9.2:

- tons more driver/mutex/completion conversion done by Thomas Gleixner
for: ppp, ipmi, parport/ieeee1284, scsi, hotplug, and more.

- iptables/netfilter deadlock fix, this should fix the bug reported by
Michal Schmidt.

- .config housekeeping: disallow the turning off of PREEMPT_BKL when
PREEMPT_REALTIME is on. This solves the build error reported by
Matthew L Foster.

- print the full stacktrace of the current task in the deadlock
detector and dont use show_stack(). This explains some of the weird
partial stackdumps reported.

- some more minor updates to the case when the deadlock detector turns
itself off due to reaching the limit. We kept the spinlock locked.

to create a -U9.3 tree from scratch, the patching order is:

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