From owner-freebsd-java@freebsd.org  Mon Jul 27 19:02:15 2015
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To: freebsd-java@freebsd.org, "Palle Girgensohn" <girgen@freebsd.org>
Subject: Re: openjdk8 recurrent crashes in Java2D, font problem? Was: openjdk8
 SIGSEGV crashes in AsyncGetCallTrace+0xdfce5
References: <D8E579DC-EFD6-43EC-BE4A-2973A29E0CA4@FreeBSD.org>
Date: Mon, 27 Jul 2015 21:01:59 +0200
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From: "Ronald Klop" <ronald-lists@klop.ws>
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On Mon, 27 Jul 2015 17:41:56 +0200, Palle Girgensohn <girgen@freebsd.org>  
wrote:

> Hi,
>
> Se my previous post  
> [https://lists.freebsd.org/pipermail/freebsd-java/2015-July/011230.html].
>
> It seems the current thread is always "Java2D Disposer".
>
> This happen to most of our few dozens of servers and it happens  
> sporadically, but at least five-ten times per month, The servers are all  
> running the same application, and it seems to have started in June. This  
> might have been due to an upgrade in openjdk8, but I cannot verify that.  
> It can also be something in our application that triggers it, unsure  
> where to look right now.
>
> Any ideas how to proceed finding the problem?
>
> For one thing, I don't seen to get any core dumps. It has no write  
> permission to the CWD, but surely it will try something else? I created  
> a /cores with mode 1777 but to no avail...?

See sysctl kern.corefile in 'man 5 core'.
I have it set to '/var/tmp/%U.%N.core'.

Regards,
Ronald.