5049299 - (process) Use,posix_spawn, not fork, on S10 to avoid swap,exhaustion (jdk7u-dev)

[Rob McKenna]

Hi Amit,

As per https://bugs.openjdk.java.net/browse/JDK-5049299, this is fixed 
in 7u55+ (including 8 fcs). There are some peculiarities however:

On JDK8 posix_spawn is the default on Solaris & Mac. vfork is the 
default on Linux.
On JDK7u55+ posix_spawn is the default on Mac only. fork is the default 
on Solaris and vfork is the default on Linux.

On 7u55+ you can change the default launch mechanism using the 
jdk.lang.Process.launchMechanism startup flag. E.g.:

java -Djdk.lang.Process.launchMechanism=posix_spawn ...

     -Rob


On 29/12/14 14:51, Amit Baxi wrote:
> Hi Folks,
>
> We are facing issue with process builder on JRockit JVM with solaris 
> 5.10 machine. That is realted to following bug:
>
>            http://bugs.java.com/view_bug.do?bug_id=5049299
>
>
>
> Currently we are using JRockit JDK 1.6.0_37-R28.2.5-4.1.0 version. 
> Please let me know  following :
>
>  * Which version of JRockit this bug is fixed ? (as it is fixed in JAVA
>    8u 15)
>  * If yes then  is it also fixed for solaris 5.10 or In solaris process
>    builder still uses fork() call ?
>
>
> As per this page link below Mr. Rob wrote that for solaris it still 
> using fork which is confusing weather fixed for solaris or not:
>
> http://mail.openjdk.java.net/pipermail/core-libs-dev/2013-November/022909.html 
>
>
> Please confirm for this fix and thanks in advance.
>
> Waiting for your response,
>
> Thanks!
> *Amit Baxi
>
>
>
> *
>
>
>
>
>