Re: queue_work from interrupt Real time preemption2.6.11-rc2-RT-V0.7.37-03

From: Ingo Molnar
Date: Tue Mar 29 2005 - 04:06:11 EST



* Mark Gross <mgross@xxxxxxxxxxxxxxx> wrote:

> > As I mentioned earlier, what would it take to be able to group
> > softirq threads that should not preempt each other, but still keep
> > preemption available for other threads?
>
> It would only take the creationt of multiple softIRQd threads per CPU.
> Just keep net_rx and net_tx in the same work queue.

we could work around the net_rx/net_tx assumptions by moving them to the
same softirq thread - but i'm a bit uneasy about the whole concept: e.g.
how about SCSI softirq processing and timer softirq processing, can they
preempt each other?

Ingo
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