[7u60] Request for approval for 8017498: JVM crashes when native code calls sigaction(sig) where sig>=0x20

[Seán Coffey]

Hi Sunny,

as per the current 7u60 putback process [1], these three bugs need to 
have the '7u60-critical-request' label added to the master bug record. 
I've just done that now. Once they're marked approved, let's revisit 
this thread.

Since the fixes are in the hotspot area, the backports should be pushed 
to the hotspot team integration forest. alejandro.murillo at oracle.com can 
help you with that nearer push time.

regards,
Sean.

[1] 
http://mail.openjdk.java.net/pipermail/jdk7u-dev/2013-November/008070.html

On 02/01/14 02:25, Chan, Sunny wrote:
> Hi all,
>
> This is a request to backport a jdk8 fix into jdk7u60, along with subsequent changes to the regression tests:
>
> 8017498 : JVM crashes when native code calls sigaction(sig) where sig>=0x20
> https://bugs.openjdk.java.net/browse/JDK-8017498
>
> The current jsig implementation is unable to deal with sigaction request if signumber is > 32. The patch modifies the signal handler so that signal > 32, which is not used in the JVM, to ignore and install the handler request directly.
>
> This fix is already included in jdk8's hotspot as:
> http://hg.openjdk.java.net/hsx/hotspot-rt/hotspot/rev/732af649bc3a
>
> The discussion thread for Java 8 can be found here:
> http://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/2013-July/008031.html
>
> Notice that current the regression tests that Calvin has provided has a few issues and this has been fixed in the following subsequent updates:
>
> Bug fix 1 (native code failed to compile on some platform, 8020791):
> http://hg.openjdk.java.net/jdk8/jdk8/hotspot/rev/72727c4b6dec
> http://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/2013-July/008312.html
>
> Bug fix 2 (failed to find gcc, 8021296):
> http://hg.openjdk.java.net/jdk8/jdk8/hotspot/rev/f9ee986a9fea
> http://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/2013-July/008421.html
>
> I have verified that if you applied the original bug fix and then subsequent testbug fix to the JDK 7 branch, it applies cleanly and resolved the issues.
>
> Thanks.
>
> Sunny Chan, Executive Director, Technology
> Goldman Sachs (Asia) L.L.C. | 68th Floor | Cheung Kong Center | 2 Queens Road Central | Hong Kong
> email:  sunny.chan at gs.com | Tel: +852 2978 6481 | Fax: +852 2978 0633
>
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