From: "Michael Dwyer" <mdwyer@sixthdimension.com>
To: <mtd@infradead.org>
Subject: DOC2000 and extreme clock skew
Date: Tue, 10 Apr 2001 15:57:59 -0600 [thread overview]
Message-ID: <009e01c0c209$50be0ae0$d501a8c0@sixthdimension.com> (raw)
I've got a linux 2.2 machine here that uses the DOC2000 and the M-Sys
provided drivers. We're noticing an EXTREME clock skew on this machine.
I'm theorizing that it is because the kernel is forced to go out to
lunch while writing to flash. While it is out to lunch, it misses timer
interrupts.
Since their base driver isn't open source, I can't poke through it --
not that that would help me much, since I'm not sure how the kernel
handles high-latency interrupts anyway.
Has anyone else seen this? Does anyone know how I would go about trying
to hunt this down?
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reply other threads:[~2001-04-10 21:58 UTC|newest]
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