JDK-8061817 : Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
- Type: Bug
- Component: hotspot
- Sub-Component: compiler
- Affected Version: 8,9
- Priority: P4
- Status: Resolved
- Resolution: Fixed
- Submitted: 2014-10-22
- Updated: 2017-08-14
- Resolved: 2014-10-30
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| JDK 8 | JDK 9 |
|---|---|
8u40Fixed  |
9 b40Fixed |
Related Reports
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Relates :
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Description
Invoking Whitebox.deoptimizeMethod() on a method that has multiple OSR compiled versions only deoptimizes one OSR method.
The problem is in 'WB_DeoptimizeMethod' in whitebox.cpp:
int bci = InvocationEntryBci;
while ((code = mh->lookup_osr_nmethod_for(bci, CompLevel_none, false)) != NULL) {
code->mark_for_deoptimization();
++result;
bci = code->osr_entry_bci() + 1;
}
After incrementing the bci 'lookup_osr_nmethod_for()' returns NULL and we exit the loop.
Comments
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