7090802: segfault in GraphBuilder [Was: Re: JVM segfault]

[David Dabbs]

> -----Original Message-----
> From: hotspot-compiler-dev-bounces at openjdk.java.net [mailto:hotspot-
> compiler-dev-bounces at openjdk.java.net] On Behalf Of Christian Thalinger
> Sent: Tuesday, February 14, 2012 11:16 AM
> To: Alan Stange
> Cc: hotspot compiler
> Subject: 7090802: segfault in GraphBuilder [Was: Re: JVM segfault]
> 
> [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
> >
> 
> 

I have also seen Intellij indexing-induced crashes on Win7 64 with both 7u2,
7u4 and 8. 
If there is a recommended setup (debug build, flags, etc.) to capture useful
traces, I would be 
happy to reproduce and supply the traces.


Best,

David