SIGSEGV in C2 Node::unique_ctrl_out on 11.0.4

Roland Westrelin rwestrel at redhat.com
Thu Sep 19 12:04:28 UTC 2019


> So assuming I have one, how would I go about using it? Try running the
> program and specify the replay file to be used to replay compilations? I
> know you guys introduced this thing a while back, but I’ve never actually
> used it :).

Replay compilation only replays the compilation and is run with:

java <same vm options the crashing vm had> -cp .... -XX:+ReplayCompiles -XX:ReplayDataFile=replay_pidxxx.log -XX:+ReplayIgnoreInitErrors

Assuming the classpath is set correctly and there's no generated methods
that c2 can't find in the classpath (from lambdas for instance), the
crash should reproduce.

Roland.


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