[aarch64-port-dev ] Question about ISB usage in the aarch64 port

[Yangfei (Felix)]

> -----Original Message-----
> From: Andrew Haley [mailto:aph at redhat.com]
> Sent: Thursday, November 28, 2019 10:02 PM
> To: Yangfei (Felix) <felix.yang at huawei.com>;
> aarch64-port-dev at openjdk.java.net
> Subject: Re: [aarch64-port-dev ] Question about ISB usage in the aarch64 port
> 
> On 11/28/19 11:50 AM, Yangfei (Felix) wrote:
> >> -----Original Message-----
> >> From: Andrew Haley [mailto:aph at redhat.com]
> >> Sent: Thursday, November 28, 2019 5:36 PM
> >> To: Yangfei (Felix) <felix.yang at huawei.com>;
> >> aarch64-port-dev at openjdk.java.net
> >> Subject: Re: [aarch64-port-dev ] Question about ISB usage in the
> >> aarch64 port
> >>
> >> See also "8220351: Cross-modifying code". That scheme is used by
> >> other ports but not AArch64.
> >
> > Thanks for this helpful information.
> > BTW: should we change aarch64 to use this scheme too?
> 
> Not unless we have a reason. I had a look and there seemed to be no
> advantage.
> 
> By the way, did you find the source of your original problem?

Not yet.  It triggers randomly which makes it hard to narrow down the root cause.  
Suggestions are welcome  :-)  


Thanks,
Felix