RFR: 8327114: Attach in Linux may have wrong behaviour when pid == ns_pid (Kubernetes debug container)

[Severin Gehwolf]

On Wed, 2 Oct 2024 19:59:31 GMT, Larry Cable <duke at openjdk.org> wrote:

>> this is a fix to: https://bugs.openjdk.org/browse/JDK-8327114 
>> 
>> to resolve an issue detected in: 
>> 
>> https://bugs.openjdk.org/browse/JDK-8341246
>> 
>> /proc/**/* file accesses should be performed as "privileged" actions to avoid security mgr exceptions.
>
> @kevinjwalls @slovdahl @jerboaa @sendaoYan @dcubed-ojdk

@larry-cable [JDK-8327114](https://bugs.openjdk.org/browse/JDK-8327114) is fixed. This PR should get integrated with a new bug. It cannot use the same bug unless it's a backport, which this clearly isn't. Also the permission issue is fixed with https://github.com/openjdk/jdk/pull/21269 (integrated).

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PR Comment: https://git.openjdk.org/jdk/pull/21312#issuecomment-2390770485