Date: Fri, 23 May 2003 22:23:10 -0700 From: Terry Lambert <tlambert2@mindspring.com> To: Daniel Eischen <eischen@pcnet1.pcnet.com> Cc: Julian Elischer <julian@elischer.org> Subject: Re: libkse and SMP (was Re: USB bulk read & pthreads) Message-ID: <3ECF01BE.BF58609A@mindspring.com> References: <Pine.GSO.4.10.10305231618410.8151-100000@pcnet1.pcnet.com>
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Daniel Eischen wrote: > On Fri, 23 May 2003, Terry Lambert wrote: > > This is handy to know; so basically, my expectation from > > reading the code around PTHREAD_SCOPE_SYSTEM was correct: > > a single CPU system with PTHREAD_SCOPE_PROCESS (the default) > > can still get itself blocked in the kernel by a single > > blocking call (as in the USB bulk read device issue). > > If I am reading you correctly, then no. Scope process > threads will block in the kernel, but upcalls will be > made to the originating KSE and new threads will be > scheduled. I'm rereading it, but I don't see that interpretation. I guess if both you and Julian both called me on it, I must have misexpressed myself, but I currently don't understand how. 8-|. -- Terry
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