Date: Sat, 5 Aug 2006 08:16:23 +0800 From: David Xu <davidxu@freebsd.org> To: freebsd-current@freebsd.org Cc: "current@freebsd.org" <current@freebsd.org>, Steve Kargl <sgk@troutmask.apl.washington.edu>, Peter Grehan <grehan@freebsd.org>, freebsd-ppc@freebsd.org Subject: Re: Looks like threading is b0rken on FreeBSD/powerpc Message-ID: <200608050816.23656.davidxu@freebsd.org> In-Reply-To: <20060803224133.R87008@volatile.chemikals.org> References: <44D12AC0.90009@sippysoft.com> <44D173B7.6040302@FreeBSD.org> <20060803224133.R87008@volatile.chemikals.org>
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On Friday 04 August 2006 10:47, Wesley Morgan wrote: > On Wed, 2 Aug 2006, Maxim Sobolev wrote: > > Peter Grehan wrote: > >>> #0 0x2183f7b4 in tls_get_addr_common (dtvp=0x1a31490, index=2, > >>> offset=4294934528) at rtld.c:2663 > >>> #1 0x218397f8 in __tls_get_addr (ti=0x21bbf0e8) at > >> > >> I think you might want to try point libpthread at libthr with > >> libmap.conf. TLS is known to work for that where I don't think it works > >> for libpthread. > > > > But libpthread works in 6.0. What's the difference? > > > > -Maxim > > FWIW, recently csup stopped working for me in -current on i386. It fails > when checking the errno set after calling access() to check if a file > exists: > > Updater failed: Cannot create directories leading to > "/usr/ports/science/p5-Algorithm-SVMLight/Makefile": Unknown error: 0 > > According to gdb, errno is being set correctly but changes almost > immediately back to zero. Not sure how/why, and I'm not sure that I'm even > using gdb correctly for threaded applications. Switching to libthr with > libmap.conf results in the same error. > > I swear that it had something to do with turning on symbol versioning, but > attempting to turn it back off was not a fun experience and didn't have > the patience to see it through. libthr does not have mutliple versioning, the hack in libpthread is rather dirty, there is a plan to bump libthr version when symbol versioning is enabled and get rid of LIBTHREAD_1_0 symbol, it should only exist in libthr.so.2, libthr.so.3 will not have it. David Xu
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