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Re: CNI threads and garbage collection on FC5

From: Bryce McKinlay <mckinlay at redhat dot com>
To: "Martin, Craig W" <Craig dot Martin2 at xerox dot com>
Cc: java at gcc dot gnu dot org
Date: Thu, 11 May 2006 15:05:29 -0400
Subject: Re: CNI threads and garbage collection on FC5
References: <69FA16B8D56D4748A11865391A369C6F013B1D63@usa0300ms03.na.xerox.net>

Martin, Craig W wrote:

Recently I ran into a curious problem though, an application that uses CNI threads seems to fail with "collecting from unknown thread" and "null pointer exceptions" in Core 5. This application runs beautifully under Core 3 and 4, so something has changed under the Core 5 GCJ stuff that I can't pinpoint. I was unable to make my application run under core 5 without killing the GC and eventually went back to core 4.

Please try gcc41-java-gc-thread-attach-2.patch <http://gcc.gnu.org/bugzilla/attachment.cgi?id=11161> from gcc.gnu.org/PR13212

This patch will be in the next FC5 libgcj rpm update. It's already in Rawhide. I think it should solve your problem.

Bryce

References:
- CNI threads and garbage collection on FC5
  - From: Martin, Craig W

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