[9] RFR(S) 8080157: assert(allocates2(pc)) failed: not in CodeBuffer memory

Vladimir Kozlov vladimir.kozlov at oracle.com
Sat Jun 20 00:39:59 UTC 2015

Thank you, Igor


On 6/19/15 5:37 PM, Igor Veresov wrote:
> Good.
> igor
>> On Jun 19, 2015, at 3:55 PM, Vladimir Kozlov <vladimir.kozlov at oracle.com> wrote:
>> http://cr.openjdk.java.net/~kvn/8080157/webrev/
>> https://bugs.openjdk.java.net/browse/JDK-8080157
>> When stubs are generated their code is put into one CodeBuffer (in CodeCache). More stubs we have the bigger that buffer should be.
>> Its size is determined by code_size2 (and code_size1 for an other set of stubs). The latest GHASH intrinsic added code which does not fit into previous size any more so we need to increase it.
>> It failed only on windows because on win64 we have to save some used XMM registers (save-on-entry) so the code is bigger than on other x86 systems.
>> I also added new asserts to have a meaningful message when there are no space left in this code buffer.
>> Tested in JPRT with new asserts before and after size change.
>> Thanks,
>> Vladimir

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