(S) RFR: 8141024: [Solaris] Obsolete UseAltSigs (original) (raw)

David Holmes david.holmes at oracle.com
Mon Nov 16 19:36:23 UTC 2015

Thanks Dan!

David

On 17/11/2015 1:32 AM, Daniel D. Daugherty wrote:

On 11/15/15 4:53 PM, David Holmes wrote:

On 15/11/2015 9:32 AM, serguei.spitsyn at oracle.com wrote:

Hi David,

There is no webrev link in this RFR. Sorry that does make it a little harder :) : http://cr.openjdk.java.net/~dholmes/8141024/webrev.v2 src/os/solaris/vm/jvmsolaris.h No comments. src/os/solaris/vm/ossolaris.cpp No comments. src/share/vm/runtime/arguments.cpp No comments. src/share/vm/runtime/globals.hpp No comments. Thumbs up! Dan is now current. Thanks, David Thanks, Serguei On 11/13/15 23:45, David Holmes wrote: Ping!

Thanks, David On 13/11/2015 11:31 AM, David Holmes wrote: Bug: https://bugs.openjdk.java.net/browse/JDK-8141024

webrev:

History: The JVM claimed SIGUSR1 and SIGUSR2 for the INTERRUPT and ASYNC signals, respectively. -Xusealtsigs, mapping to -XX:+UseAltSigs, was provided to allow users to reclaim those signals and instead use two of the real-time signals (between SIGRTMIN and SIGRTMAX) As of Solaris 10, Solaris provides SIGJVM1 and SIGJVM2 exclusively for the JVMs use. This avoids any conflict with user-defined signal usage. As of Java 6 we documented that on Solaris 10 -Xusealtsigs/-XX:+UseAltSigs had no affect: http://www.oracle.com/technetwork/java/javase/signals-139944.html#gbzbh As we no longer support Solaris versions older than 10, we do not need the UseAltSigs functionality and the flags can be made Obsolete. Thanks, David

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