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Date: Sun, 18 Nov 2012 11:15:43 -0500 (EST)
From: Paolo Bonzini <pbonzini@redhat.com>
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Subject: Re: [Qemu-devel] [patch v4 08/16] QemuThread: make QemuThread as
 tls to store extra info
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To: Brad Smith <brad@comstyle.com>
Cc: Peter Maydell <peter.maydell@linaro.org>, Liu Ping Fan <pingfank@linux.vnet.ibm.com>, Jan Kiszka <jan.kiszka@siemens.com>, Marcelo Tosatti <mtosatti@redhat.com>, qemu-devel@nongnu.org, Avi Kivity <avi@redhat.com>, Anthony Liguori <anthony@codemonkey.ws>, Stefan Hajnoczi <stefanha@gmail.com>


> > > It does support pthread_get/setspecific, but it didn't support
> > > something
> > > else so the qemu-tls.h variant that used pthread_get/setspecific
> > > didn't
> > > work either.
> > >
> > > And it doesn't support sigaltstack in threads, so it's the only
> > > platform
> > > where the gthread-based coroutines are used.  Those are buggy
> > > because
> > > the coroutines tend to get random signal masks.
> > 
> > I'd love to know what that something else is.
> 
> I think it is constructor priorities.  Probably not needed if I
> look at the code again with a fresh mind. :)
> 
> But yes

... now that real pthreads are supported in OpenBSD it's a wholly
different story, and we should simply (in 1.4) stop supporting older
versions.  (Sincere) congratulations to the OpenBSD devs!

Paolo