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

Chan, Sunny Sunny.Chan at gs.com
Wed Jan 15 02:57:54 PST 2014

Sorry I don't have an OpenJDK id. This is my first "contributions" to OpenJDK.

Would I need to work with Alejandro on this?

-----Original Message----- From: Seán Coffey [mailto:sean.coffey at oracle.com] Sent: 15 January 2014 18:56 To: Chan, Sunny [Tech]; Alejandro E Murillo Cc: 'jdk7u-dev at openjdk.java.net' Subject: Re: [7u60] Request for approval for 8017498: JVM crashes when native code calls sigaction(sig) where sig>=0x20

Hi Sunny,

all 3 bug fixes have been approved for jdk7u-dev. Please push the changesets to the hotspot team forest. Do you have an OpenJDK id ? Alejandro may have to work this one given the hotspot factor.

https://bugs.openjdk.java.net/browse/JDK-8017498 https://bugs.openjdk.java.net/browse/JDK-8020791 https://bugs.openjdk.java.net/browse/JDK-8021296

Regards, Sean.

On 07/01/14 13:22, Seán Coffey wrote:

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 This message may contain information that is confidential or privileged. If you are not the intended recipient, please advise the sender immediately and delete this message. See http://www.gs.com/disclaimer/email for further information on confidentiality and the risks inherent in electronic communication.

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