Date: Thu, 26 Jun 2003 14:02:06 -0700 (PDT) From: Julian Elischer <julian@elischer.org> To: deischen@gdeb.com Cc: freebsd-threads@freebsd.org Subject: Re: libkse / libthr bugs? Message-ID: <Pine.BSF.4.21.0306261400400.12070-100000@InterJet.elischer.org> In-Reply-To: <Pine.GSO.4.10.10306261424040.17056-100000@pcnet5.pcnet.com>
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On Thu, 26 Jun 2003, Daniel Eischen wrote: > On Thu, 26 Jun 2003, Alex Boisvert wrote: > > Hi, > > > > I written a small test case (see source below), which I've run against > > both libkse and libthr. I'm using -CURRENT as of last Tuesday and > > running on a Dual Athlon MP 1.2 GHz (Tyan Thunder K7 motherboard). > > > > With libkse, the program runs most of the time (say, about 9 times out > > of 10) but sometimes hang and, interestingly, prints an "F" character to > > the console -- but that "F" character is never printed by the > > application itself! (see source) > > > > Here are two examples of when it hangs: > > > > bipolar:boisvert:~/prog/pthread:48 gcc -g -lkse -o foo2 foo2.c > > bipolar:boisvert:~/prog/pthread:49 ./foo2 1000 > > Using 1000 threads (parameter) > > bar 0 > > bar 1 > > bar 2 > > Fbar 3 > > ^C > > bipolar:boisvert:~/prog/pthread:50 > > > > (Notice the "F" on the last line, before I had to use CTRL-C to > > terminate the application). > > > > Also, sometimes I get: > > > > bipolar:boisvert:~/prog/pthread:65 ./foo2 1000 > > Using 1000 threads (parameter) > > F > > ^C > > bipolar:boisvert:~/prog/pthread:66 > > I don't really see anything wrong with your test program. There > would seem to be a bug in libkse or perhaps even in libc (stdio > not being thread-safe or something). > > We've got some changes in the works. I'll check them out > with your test program. Thanks! There is sonething slightly wrong in the KSE system as eventeh kse test program doesn't start up correctly occasionally.
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