RFR: 8261028: ZGC: SIGFPE when MaxVirtMemFraction=0

[Jie Fu]

On Wed, 3 Feb 2021 11:57:16 GMT, Stefan Karlsson <stefank at openjdk.org> wrote:

>> Hi all,
>> 
>> The SIGFPE was caused by this line [1] when MaxVirtMemFraction=0.
>> But according to this comment [2], 0 should not be allowed for MaxVirtMemFraction.
>> 
>> Thanks.
>> Best regards,
>> Jie
>> 
>> [1] https://github.com/openjdk/jdk/blob/master/src/hotspot/share/gc/z/zAddressSpaceLimit.cpp#L51
>> [2] https://github.com/openjdk/jdk/blob/master/src/hotspot/share/gc/shared/gc_globals.hpp#L345
>
> Looks good. Thanks for fixing!

Thanks @stefank and @pliden for your review.
Will push it tomorrow.

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PR: https://git.openjdk.java.net/jdk/pull/2374