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Date: Wed, 6 Sep 2000 00:55:17 -0600 (MDT)
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From: Nate Williams <nate@yogotech.com>
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To: Martin Cracauer <cracauer@cons.org>
Cc: Nate Williams <nate@yogotech.com>,
	Andrew Gallatin <gallatin@cs.duke.edu>, marcel@cup.hp.com,
	freebsd-emulation@FreeBSD.ORG
Subject: Re: IBM JDK fails due to lack of SA_SIGINFO support
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> > > Currently the IBM jdk & jvm don't run under our linux abi.  This had
> > > previously been attributed to the "sigaltstack: Cannot allocate
> > > memory" message one sees when running it.  Upon further investigation,
> > > this appears to be a red herring.
> > 
> > Umm, I'd believe this except that someone sent me a patch (which I've
> > forwarded to Marcel) that fixes this and is related to the sigalstack
> > error above.  At least the author of the patch claims that the IBM JDK
> > now runs successfully on his box, running some version of FreeBSD. :)
> > 
> > > The "real" problem is as simple
> > > (or, rather, complex) as the fact that we don't support SA_SIGINFO
> > > style signal handlers under the linux abi.
> > 
> > [ Great explanation deleted ]
> > 
> > Hmm, I'm at a loss.  I've heard that things work fine with the
> > signalstack issues fixed, so maybe the java program that he is running
> > doesn't tickle the bug, although I find that rather difficult to believe
> > given that almost every Java program known to man is multi-threaded.
> 
> Maybe the patch that someone sent you just adds SA_SIGINFO arguments
> to every signal handler?

Nope, it just bumps up the signal stack size.  A slightly modified
version of it was just committed to -current my Marcel, so try it out.


Nate


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