RFR(S): 8086068: VM crashes with "-Xint -XX:+UseCompiler" options
zoltan.majo at oracle.com
Wed Apr 20 14:02:43 UTC 2016
thank you for looking taking care of this issue.
There are some other flags that are set to 'false' with -Xint
(UseLoopCounter, AlwaysCompileLoopMethods, and UseOnStackReplacement).
Do you know if re-enabling any of those causes problems?
Otherwise it looks good to me.
On 04/20/2016 03:46 PM, Tobias Hartmann wrote:
> please review the following patch:
> The VM crashes in product or fails with an assert in debug if -Xint and -XX:+UseCompiler is set. This is because CodeCache::heap_available() relies on the fact that if Arguments::mode() == _int, no compilation will be triggered. Although UseCompiler is first disabled by -Xint, the flag may be re-enabled if set via command line.
> The solution is to catch such an inconsistent flag combination, issue a warning and reset the flag.
> Tested with regression test and RBT (running).
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