|| ||Ingo Molnar <email@example.com>|
|| ||[patch] voluntary-preempt-220.127.116.11-P0|
|| ||Sun, 15 Aug 2004 13:56:49 +0200|
|| ||Felipe Alfaro Solana <firstname.lastname@example.org>,
Florian Schmidt <email@example.com>,
Lee Revell <firstname.lastname@example.org>|
i've uploaded the -P0 patch:
those who had APIC (and USB, under SMP) problems under previous
versions, are the problems still present in -P0?
- make redirected softirqs and hardirqs preemptible by default. I
reviewed a number of softirq users and it appears to be safe.
Process-level enable/disable_bh still disables preemption, but the
handlers themselves run in a preemptible way. This preemptability
should fix e.g. the IDE latencies. It could also fix some of the
/dev/random related latencies.
- fixed a bug in hardirq redirection - we didnt re-disable interrupts
- updated the IO-APIC changes - hopefully it's more robust now
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