Re: JVMTI OOM handling when arrays / objects are too large

2009-06-14 Thread David Holmes - Sun Microsystems
Martin, I agree regarding the bug - this fix provides a consistent approach to all situations where an OOME is thrown. (You can consider this an additional review.) My meta-question is whether OOME should have been thrown for this case: it somehow seems wrong to me - I would not handle this

Re: JVMTI OOM handling when arrays / objects are too large

2009-06-14 Thread Martin Buchholz
I'm far from an expert on jvmti or hotspot's error handling, but... If I've asked for a command to be run on OOME, having it not run feels very much like a bug. I agree that OOME might not perfectly match the situation, but is there a better course of action? I don't see any reasonable alternative

Re: JVMTI OOM handling when arrays / objects are too large

2009-06-14 Thread David Holmes - Sun Microsystems
Martin, Jeremy, This change has been bugging me. I guess what I don't like is not the "fix" but the fact that we report OutOfMemoryError for this situation in the first place! We are not out-of-memory! We've been asked to allocate something that is impossible to allocate given the physical con

hg: jdk7/tl/jdk: 2 new changesets

2009-06-14 Thread martinrb
Changeset: 74aefd0ab26d Author:martin Date: 2009-06-14 14:23 -0700 URL: http://hg.openjdk.java.net/jdk7/tl/jdk/rev/74aefd0ab26d 6850720: (process) Use clone(CLONE_VM), not fork, on Linux to avoid swap exhaustion Summary: Use clone(CLONE_VM) on Linux; Reluctantly implement execvpe.

Re: JVMTI OOM handling when arrays / objects are too large

2009-06-14 Thread Martin Buchholz
I've polished the changes in preparation for committing. I'll commit once I have reviewer approval. You'll need to let me know which forest to commit to. Test webrev is now at: http://cr.openjdk.java.net/~martin/jvmti-oom-test/ Now has more tests and filled-in @bug line. Hotspot fix webrev is at

hg: jdk7/hotspot-rt/hotspot: 29 new changesets

2009-06-14 Thread lev . serebryakov
Changeset: 93c14e5562c4 Author:twisti Date: 2009-05-06 00:27 -0700 URL: http://hg.openjdk.java.net/jdk7/hotspot-rt/hotspot/rev/93c14e5562c4 6823354: Add intrinsics for {Integer,Long}.{numberOfLeadingZeros,numberOfTrailingZeros}() Summary: These methods can be instrinsified by using