[11u] RFR: 8173361: various crashes in JvmtiExport::post_compiled_method_load

[Doerr, Martin]

Hi Götz,

backport looks good.

Thanks,
Martin


> -----Original Message-----
> From: jdk-updates-dev <jdk-updates-dev-retn at openjdk.java.net> On
> Behalf Of Lindenmaier, Goetz
> Sent: Freitag, 6. November 2020 08:45
> To: jdk-updates-dev at openjdk.java.net
> Subject: [11u] RFR: 8173361: various crashes in
> JvmtiExport::post_compiled_method_load
> 
> Hi,
> 
> I downport this for parity with 11.0.10-oracle.
> The code does not fit very well.
> I removed a guarantee because is_unloading() does not exist in 11.
> I turned some MutexLocker to MutexLockerEx which takes the
> Mutex::_no_safepoint_check_flag enum argument.
> 
> http://cr.openjdk.java.net/~goetz/wr20/8173361-post_compiled_method-
> jdk11/01/webrev/
> 
> Please review.
> 
> There are some follow up changes for jvmti which all need similar adaptions.
> 
> https://bugs.openjdk.java.net/browse/JDK-8173361
> https://hg.openjdk.java.net/jdk/jdk/rev/e79ece2eb1ba
> 
> Best regards,
>   Goetz