Date: Fri, 18 Jul 2003 09:24:04 -0400 From: John <jwd@bsdwins.com> To: Julian Elischer <julian@elischer.org> Cc: hackers@freebsd.org Subject: Re: ptrace & threads Message-ID: <20030718132404.GA60116@BSDWins.Com> In-Reply-To: <Pine.BSF.4.21.0307172219080.87910-100000@InterJet.elischer.org> References: <3F17677C.4090200@wooten.com> <Pine.BSF.4.21.0307172219080.87910-100000@InterJet.elischer.org>
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----- Julian Elischer's Original Message ----- > It is teh nextthing to look at.. > The ptrace interface doesn't extend to coverthreads at all. > We willneed to design somewhole new system.. > One posibility is the benedict arnold thread(*), that > talks with the debugger and controlls teh other threads.. Well, hoping not to create a NIH discussion, but OS/2 had/has a nice interface for thread debugging. Used it years ago as a model for setting up an environment on the mainframe (vm). One thing to remember, a failed thread on one cpu has no effect on any threads running on other physicals. You literally need a way to control how many threads can run in parallel, how many physical cpus they can use, and in some circumstances, logicals. -John
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