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Date:      Wed, 07 Sep 2016 18:47:22 +0000
From:      bugzilla-noreply@freebsd.org
To:        java@FreeBSD.org
Subject:   [Bug 212150] java/openjdk8 frequent sigsev due to small ThreadStackSize
Message-ID:  <bug-212150-8522-RrhWNpcU2n@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-212150-8522@https.bugs.freebsd.org/bugzilla/>
References:  <bug-212150-8522@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D212150

--- Comment #3 from openjdk@getsnappy.com ---
I'm glad it helped.  I agree that this is just a workaround and not a fix. =
 I
took a peak at libthr and I don't believe there is a way to detect a native
stack overflow.  I also looked into the default sizing logic and it looks l=
ike
the default is identical to Linux, at 1M for 64bit architectures.  It looks
like the  default non-initial thread stack size is 2MB for 64bit architectu=
res,
so I wonder if 1MB is just too low for FreeBSD.=20

It looks like the stack sizing logic was directly ported from Linux.  So ma=
ybe
the solution would be to bump up the defaults.  Does anybody have any clue =
as
to why we would need a bigger native stack on Freebsd vs Linux?

--=20
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