RFR: 8170812: Metaspace corruption caused by incorrect memory size for MethodCounters

Andrew Haley aph at redhat.com
Thu Apr 6 08:31:39 UTC 2017

On 06/04/17 02:31, Kim Barrett wrote:
>> On Apr 5, 2017, at 11:13 AM, Andrew Haley <aph at redhat.com> wrote:
>> If sizeof (MethodCounters) is not a multiple of wordSize, memory
>> allocator metadata is corrupted, causing the VM to become unstable and
>> eventually crash.
>> I've applied for a JDK9 fix request.  I'll need a sponsor.
>> Andrew.
>  It looks like it might require a fairly specific set of build options, but yikes!
> Change looks good.

Yikes indeed.  :-)

Webrev at http://cr.openjdk.java.net/~aph/8170812/.



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