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Flash OPs and DSR/scheduler locking
- From: Peter Graf <p dot graf at itknet dot de>
- To: ecos-discuss at sources dot redhat dot com
- Date: Wed, 05 May 2004 12:52:17 +0200
- Subject: [ECOS] Flash OPs and DSR/scheduler locking
Hi,
I have noticed that flash operations from JFFS2 cause my alarms, DSRs,
and high prio threads to be disabled for longer than I can afford, e.g.
several tens of miliseconds on my PowerPC target. I'd like to have a
more detailed look into the mechanisms of locking during flash
operations, and see if some of them can be altered (relaxed) for my
requirements. Right now I have difficulties to find the places where the
locking takes places (maybe I'm just blindfolded today :-) So if someone
could give me a hint, that would be great.
Many thanks,
Peter
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