Moved this to core-libs-dev for review, thanks. Dropped and bcc'ed jdk-dev and jdk-updates-dev.
Regards Patrick -----Original Message----- From: David Holmes <david.hol...@oracle.com> Sent: Friday, April 12, 2019 3:43 PM To: Patrick Zhang OS <patr...@os.amperecomputing.com>; jdk-...@openjdk.java.net Cc: jdk-updates-...@openjdk.java.net Subject: Re: RFR: 8222334: java -Xss0 triggers StackOverflowError Hi Patrick, Please takes this to core-libs-dev for review. Thanks, David On 12/04/2019 5:24 pm, Patrick Zhang OS wrote: > Hi, > > Please review this patch. > > The problem is that the launcher does a check on the input -Xss and > ensure it >=64K for the initial thread, while vm has another function > to determine whether the input stack size is big enough to future > threads, such as cgc_thread, vm_thread, java_thead etc. However if > -Xss0, the initial thread is created with stack size 64K, while others > use hotspot/system default sizes, which would trigger > StackOverflowError. We could either fine tune the threshold 64K to be > a bigger one, or have the initial thread created with system defaults > that may be what the user expects. This patch chooses the second > solution, to avoid potential side-effect of the first. > > This can be reproduced with 10, 11, 12 too, so I cc'ed jdk-updates-dev here. > > More details please refer to the ticket. > > JBS: https://bugs.openjdk.java.net/browse/JDK-8222334 > > Webrev: http://cr.openjdk.java.net/~qpzhang/8222334/webrev.01/ > > Thanks for David's comments in Jira. > > Regards > > Patrick >
