RFR(XL): 8167108 - SMR and JavaThread Lifecycle
Daniel D. Daugherty
daniel.daugherty at oracle.com
Mon Nov 13 17:30:57 UTC 2017
I rebased the project to the 2017.10.26 jdk10/hs PIT snapshot.
Here are the updated webrevs:
Here's the mq comment for the change:
Rebase to 2017.10.25 PIT snapshot.
Here is the full webrev:
And here is the delta webrev:
I ran the above bits throught Mach5 tier[1-5] testing over the holiday
weekend. Didn't see any issues in a quick look. Going to take a closer
We welcome comments, suggestions and feedback.
Dan, Erik and Robbin
On 11/8/17 1:05 PM, Daniel D. Daugherty wrote:
> Resolving one of the code review comments (from both Stefan K and Coleen)
> on jdk10-04-full required quite a few changes so it is being done as a
> standalone patch and corresponding webrevs:
> Here's the mq comment for the change:
> stefank, coleenp CR - refactor most JavaThreadIterator usage to use
> Here is the full webrev:
> And here is the delta webrev:
> We welcome comments, suggestions and feedback.
> Dan, Erik and Robbin
> On 10/9/17 3:41 PM, Daniel D. Daugherty wrote:
>> We have a (eXtra Large) fix for the following bug:
>> 8167108 inconsistent handling of SR_lock can lead to crashes
>> This fix adds a Safe Memory Reclamation (SMR) mechanism based on
>> Hazard Pointers to manage JavaThread lifecycle.
>> Here's a PDF for the internal wiki that we've been using to describe
>> and track the work on this project:
>> Dan has noticed that the indenting is wrong in some of the code quotes
>> in the PDF that are not present in the internal wiki. We don't have a
>> solution for that problem yet.
>> Here's the webrev for current JDK10 version of this fix:
>> This fix has been run through many rounds of JPRT and Mach5 tier[2-5]
>> testing, additional stress testing on Dan's Solaris X64 server, and
>> additional testing on Erik and Robbin's machines.
>> We welcome comments, suggestions and feedback.
>> Daniel Daugherty
>> Erik Osterlund
>> Robbin Ehn
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