[aarch64-port-dev ] RFR(S): 8248851: CMS: Missing memory fences between free chunk check and klass read

[Yangfei (Felix)]

Hi,

> -----Original Message-----
> From: Andrew Haley [mailto:aph at redhat.com]
> Sent: Wednesday, July 8, 2020 5:48 PM
> To: Kim Barrett <kim.barrett at oracle.com>; Yangfei (Felix)
> <felix.yang at huawei.com>
> Cc: jdk8u-dev at openjdk.java.net; hotspot-gc-dev at openjdk.java.net;
> aarch64-port-dev at openjdk.java.net
> Subject: Re: [aarch64-port-dev ] RFR(S): 8248851: CMS: Missing memory
> fences between free chunk check and klass read
> 
> On 08/07/2020 09:41, Kim Barrett wrote:
> >> Since CMS is deprecated from JDK9, I am not sure if it's appropriate to fix
> this issue for those JDK9+ versions.
> > Deprecated != unsupported.
> >
> 
> Yes, it must be done. Thanks.

CCing to jdk-updates-dev.

I have prepared another two webrevs for jdk11u and jdk13u:
  Jdk11u-dev:  http://cr.openjdk.java.net/~fyang/8248851-11u/ 
  Jdk13u-dev: http://cr.openjdk.java.net/~fyang/8248851-13u/ 

The only difference lies in copyright year update.  Both tiere1-3 tested on aarch64-linux-gnu.
I will put jdk11u-fix-request and jdk13u-fix-request label on the issue if they are good.

I have also prepared a new webrev for jdk8u incorporating copyright year update:
  Jdk8u-dev: http://cr.openjdk.java.net/~fyang/8248851-8u/ 

Thanks,
Felix