|| ||Ingo Molnar <email@example.com>|
|| ||[patch] Real-Time Preemption, -RT-2.6.10-rc1-mm3-V0.7.18|
|| ||Sat, 6 Nov 2004 16:57:20 +0100|
|| ||Lee Revell <firstname.lastname@example.org>,
Rui Nuno Capela <email@example.com>,
Mark_H_Johnson@Raytheon.com, "K.R. Foley" <firstname.lastname@example.org>,
Bill Huey <email@example.com>, Adam Heath <firstname.lastname@example.org>,
Florian Schmidt <email@example.com>,
Thomas Gleixner <firstname.lastname@example.org>,
Michal Schmidt <email@example.com>,
Fernando Pablo Lopez-Lezcano <nando@ccrma.Stanford.EDU>,
Karsten Wiese <firstname.lastname@example.org>|
i have released the -V0.7.18 Real-Time Preemption patch, which can be
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
- 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
- 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
- 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
- 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:
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