Messages in this thread | | | Date | Fri, 15 Oct 2004 01:42:02 +0200 | From | Ingo Molnar <> | Subject | [patch] Real-Time Preemption, -VP-2.6.9-rc4-mm1-U2 |
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i have released the -U2 PREEMPT_REALTIME patch:
http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.9-rc4-mm1-U2
this too is a bugfixes-only release, and it is still experimental code.
Changes since -U1:
- bugfix: fix page_lock_anon_vma() crash reported by Adam Heath and Lorenzo Allegrucci.
- bugfix: fix selinux atomic-schedule warning messages, reported by Mark H Johnson.
- bugfix: ip_tables atomic-schedule fix, fixes the messages reported by Daniel Walker and K.R. Foley.
- bugfix: fix warnings/deadlocks in inet_create(), reported by Mark H Johnson.
- bugfix: fixed a crash-in-shmfs-during-heavy-swapout bug
- bugfix: enable preemption while doing mmdrop() in the scheduler - it may schedule.
- debugging feature: when PREEMPT_TIMING is enabled then the code also keeps a trace/stack of preemption enabler EIPs. (if LATENCY_TRACE is enabled as well then the parent EIP is recorded as well.) Whenever a stack trace due to atomicity violations is printed, the preemption stack is printed as well. This makes it much easier to identify the place that did the illegal preemption-disabling.
to create a -U2 tree from scratch the patching order is:
http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.8.tar.bz2 + http://kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6.9-rc4.bz2 + http://kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.9-rc4/2.6.9-rc4-mm1/2.6.9-rc4-mm1.bz2 + http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.9-rc4-mm1-U2
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