[11u] Backport of fix for CDS and JVM-TI agent crash ?

[Ioi Lam]

The 3 issues that I wanted to backport were:

Issue       BP-of   Synopsis
JDK-8212991 8212205 VM asserts after CDS archive has been unmapped
JDK-8213273 8213250 CDS archive creation aborts due to metaspace object 
allocation failure
JDK-8213164 8212200 assert(on_stack()) failed when shared 
java.lang.object is redefined by JVMTI agent

They are all backport issues related to CDS with (fixVersion = 11-pool). 
Only the last one is related to JVMTI, but the other 2 are kind of 
serious as well. But due to reassignment, I wasn't able to do the 
backport :-(

Thanks
- Ioi

On 3/18/19 2:08 PM, Langer, Christoph wrote:
> Hi Ioi,
>
> ok, thanks for that information.
>
> Can you let us know, what exactly these 3 bugs were, that should be backported? I guess it's about JDK-8212200, JDK-8213182 which fixes a build failure after the former one. And what's the 3rd issue?
>
> Thanks
> Christoph
>
>> -----Original Message-----
>> From: Ioi Lam <ioi.lam at oracle.com>
>> Sent: Montag, 18. März 2019 19:27
>> To: Langer, Christoph <christoph.langer at sap.com>
>> Cc: jdk-updates-dev at openjdk.java.net; Michael Rasmussen
>> <Michael.Rasmussen at roguewave.com>
>> Subject: Re: [11u] Backport of fix for CDS and JVM-TI agent crash ?
>>
>> Hi Christoph, I have been reassigned (and I've removed myself as the
>> assigned engineer for those bugs) so I think it's best for the openjdk
>> community to pick up these backports.
>>
>> Thanks
>>
>> - Ioi
>>
>> On 3/17/19 11:46 PM, Langer, Christoph wrote:
>>> Hi Ioi,
>>>
>>> I'd like to ping you again on this one. What are your current plans on
>> backporting https://bugs.openjdk.java.net/browse/JDK-8212200 and
>> whatever needs to go with it? Ideally you still want to do it, but if not I'd
>> appreciate if you could let us know.
>>> Thanks a lot in advance
>>> Christoph
>>>
>>>
>>>> -----Original Message-----
>>>> From: jdk-updates-dev <jdk-updates-dev-bounces at openjdk.java.net>
>> On
>>>> Behalf Of Ioi Lam
>>>> Sent: Dienstag, 29. Januar 2019 01:33
>>>> To: jdk-updates-dev at openjdk.java.net
>>>> Subject: Re: Backport of fix for CDS and JVM-TI agent crash ?
>>>>
>>>> There are CDS 3 bugs that I plan to backport to 11. I hope to post the
>>>> requests this week.
>>>>
>>>> https://bugs.openjdk.java.net/issues/?filter=36209
>>>>
>>>> Thanks
>>>>
>>>> - Ioi
>>>>
>>>> On 1/28/19 8:35 AM, Lindenmaier, Goetz wrote:
>>>>> Hi,
>>>>>
>>>>> The fact a downport bug was opened does not matter,
>>>>> you could still flag jdk11u-fix-request and just push it
>>>>> if approved.  This bug will then be closed as it is flagged 11-pool.
>>>>>
>>>>> More gentle it would be to ask Ioi what's going on ...
>>>>>
>>>>> Best regards,
>>>>>      Goetz.
>>>>>
>>>>>> -----Original Message-----
>>>>>> From: jdk-updates-dev <jdk-updates-dev-
>> bounces at openjdk.java.net>
>>>> On
>>>>>> Behalf Of Volker Simonis
>>>>>> Sent: Monday, January 28, 2019 5:02 PM
>>>>>> To: Michael Rasmussen <Michael.Rasmussen at roguewave.com>
>>>>>> Cc: jdk-updates-dev at openjdk.java.net
>>>>>> Subject: Re: Backport of fix for CDS and JVM-TI agent crash ?
>>>>>>
>>>>>> On Mon, Jan 28, 2019 at 4:17 PM Michael Rasmussen
>>>>>> <Michael.Rasmussen at roguewave.com> wrote:
>>>>>>> Hi,
>>>>>>>
>>>>>>> I was wondering if there are any plans to backport
>>>>>> https://bugs.openjdk.java.net/browse/JDK-8212200 to jdk11u.
>>>>>>> I can see https://bugs.openjdk.java.net/browse/JDK-8213164 has
>> been
>>>>>> created, but don't know if there are any active plans to actually do it?
>>>>>> Hi Michael,
>>>>>>
>>>>>> I actually don't really understand what this means. Usually, you do a
>>>>>> down-port by first requesting it on the original bug by applying a
>>>>>> "jdk<release>u-fix-request" tag. Once the downport will be approved
>>>>>> (by application of a "jdk<release>u-fix-yes" tag), the corresponding
>>>>>> fix can be pushed to the updates repository. This push automatically
>>>>>> triggers the creation of the corresponding backport issue in JBS.
>>>>>>
>>>>>> I don't know what it means for the downport process [1] if somebody
>>>>>> (apparently manually) creates a backport issue like
>>>>>> https://bugs.openjdk.java.net/browse/JDK-8213164 ?
>>>>>>
>>>>>> Regards,
>>>>>> Volker
>>>>>>
>>>>>> [1] http://openjdk.java.net/projects/jdk-updates/approval.html
>>>>>>
>>>>>>> Kind regards
>>>>>>> /Michael