Re: [Patch] shm bug introduced with pagecache in 2.3.11

Chuck Lever (cel@monkey.org)
Fri, 19 Nov 1999 12:08:40 -0500 (EST)


On Fri, 19 Nov 1999, Manfred wrote:
> > That said, I don't think this can/will be fixed for a 2.4 timeframe,
> I didn't expect that. It's something for 2.5
>
> > especially as I haven't heard of any real-life usage where it would be an
> > issue..
> IMHO that's obvious: "normal" programs are single-threaded or use fork, and
> they use read/write for io.
> --> the problem only affects multi-threaded, mmap based programs, and they
> are rare. (perhaps Apache 2?)

they are not rare in the server world.

- Chuck Lever

--
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The Linux Scalability project: http://www.citi.umich.edu/projects/linux-scalability/

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