Date: Mon, 03 Dec 2007 10:01:05 +0800 From: David Xu <davidxu@FreeBSD.org> To: Daniel Eischen <deischen@FreeBSD.org> Cc: nate@yogotech.com, java@FreeBSD.org, julian@FreeBSD.org Subject: Re: cvs commit: src/lib/libkse/thread thr_kern.c Message-ID: <47536361.8090203@freebsd.org> In-Reply-To: <Pine.GSO.4.64.0711301849310.6581@sea.ntplx.net> References: <200711301716.lAUHGEV1064334@repoman.freebsd.org> <wpprxrto0s.fsf@heho.snv.jussieu.fr> <Pine.GSO.4.64.0711301659060.5465@sea.ntplx.net> <wpwsrz9uyr.fsf@heho.snv.jussieu.fr> <Pine.GSO.4.64.0711301849310.6581@sea.ntplx.net>
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Daniel Eischen wrote: > On Fri, 1 Dec 2007, Arno J. Klaassen wrote: > >> Daniel Eischen <deischen@freebsd.org> writes: >> >>> On Fri, 30 Nov 2007, Arno J. Klaassen wrote: >>> >>> [ ... ] >>> >>>> (gdb) where >>>> #0 0x000000080075d151 in pthread_sigmask () from /usr/lib/libkse.so.3 >>>> #1 0x000000080075d103 in sigprocmask () from /usr/lib/libkse.so.3 >>>> #2 0x000000080076c423 in pthread_kill () from /usr/lib/libkse.so.3 >>>> #3 0x0000000800758f29 in fork () from /usr/lib/libkse.so.3 >>>> #4 0x0000000801e43158 in jdk_fork_wrapper () >>> >>> >>> This isn't really telling me anything because fork() doesn't call >>> pthread_kill(), and pthread_kill() doesn't call sigprocmask(). >> >> >> ah, make install strips debug symbols? >> >> Anyway, I reran with >> "LD_LIBRARY_PATH=/usr/obj/files/bsd/src7/lib/libkse >> /usr/local/jdk1.5.0/bin/java_g " >> >> That gives : >> >> #0 0x000000080075d151 in _pthread_sigmask (how=3, set=0x813cc6e10, >> oset=0x0) >> at /files/bsd/src7/lib/libkse/thread/thr_sigmask.c:52 >> #1 0x000000080075d103 in _sigprocmask (how=3, set=0x813cc6e10, oset=0x0) >> at /files/bsd/src7/lib/libkse/thread/thr_sigprocmask.c:49 >> #2 0x000000080076c423 in _kse_single_thread (curthread=0x813cc6c00) >> at /files/bsd/src7/lib/libkse/thread/thr_kern.c:361 >> #3 0x0000000800758f29 in _fork () >> at /files/bsd/src7/lib/libkse/thread/thr_fork.c:101 >> #4 0x0000000801e43158 in jdk_fork_wrapper () >> at ../../../src/solaris/native/java/lang/UNIXProcess_md.c:437 >> >> Hope this is better > > > Yes, this would seem to be a kernel problem, as _get_curthread() > seems to be returning garbage. This is a libkse MD function, > that relies on %gs (for i386/amd64) to point to something > that was initialized in the parent. > > Julian, David, got any ideas? > I don't know, I am still reading some kernel code. Regards, David Xu
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