Bug: ZGC crashes with AbstractMethodError

Per Liden per.liden at oracle.com
Mon Dec 11 12:31:47 UTC 2017


On 2017-12-11 12:24, Per Liden wrote:
> On 2017-12-11 11:23, Aleksey Shipilev wrote:
>> On 12/11/2017 11:17 AM, Per Liden wrote:
>>> Thanks for reporting! Are you by any chance running on a recent AMD
>>> machine? We know about a C2 bug
>>> only provoked on those CPUs. Nils is working on a patch for that.
>> Nope, this is i7-7820X on Linux 4.10.0-38-generic x86_64, compiled
>> with gcc version 5.4.0.
>> Also fails on i7-4790K on Linux 4.9.0-4-amd64 compiled with gcc
>> version 6.3.0.
>> What is puzzling is that only release bits are failing, not fastdebug.
> Ok, thanks! Nils will try to looks into this. Is there anything more
> about this test you could share? Or can the test be trimmed down and
> pruned of any sensitive information to make is shareable?

Would is be possible to do two additional runs with your test? One with:


and another with:


That might help us narrow this down a bit.


> thanks,
> Per
>> -Aleksey

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