[Forwarding to hotspot-compiler-dev, BBC'ing jdk7u-dev] On Feb 14, 2012, at 4:25 PM, Alan Stange wrote:
> All, > > I've been able to make the JVM segfault fairly reliably when using > TieredCompilation. I reported this as bugid 7090802. > > # Problematic frame: > # V [libjvm.so+0x1aa058][thread -1705837712 also had an error] > GraphBuilder::GraphBuilder(Compilation*, IRScope*)+0x378 > > I haven't been able to have a bullet proof way to make this fail. However, > starting Intellij so that it has to re-index the source code base seems to > work reliably. It fails on a single CPU virtualbox instance, dual cpu, 8 > cpu and 16cpu systems. It's failing on Ubuntu, Suse 11.2 and 11.4 systems. > > > This isn't that big of a deal as I just turn off TieredCompilation. I'm > taking the time to point this problem out though as I think TieredCompilation > is great and want to see it be bullet proof. I have never had an issue > using either the server or client compiler without TieredCompilation. I > have also tried tweaking Tier2CompileTheshold up to 50000 and that didn't > seem to make a difference either. With PrintCompilation enabled I can see > that it's failing after about 14000 methods are compiled with the C1 compiler. > > So, my apologies for posting this here. How can I help resolve this issue? The bug is currently in "Incomplete" state and marked as "Need More Info". I guess this is because of a missing test case to reproduce the problem. And it's not filed against compiler1 category (which I think it should be). -- Chris > > I tried jdk8 as well, but there are some other xrender related issues with > jdk8 and intellij, so I don't know if the same issue exists there. > > -- Alan >
