From owner-freebsd-java@freebsd.org Fri Jun 10 13:57:16 2016 Return-Path: Delivered-To: freebsd-java@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 7394DB70353 for ; Fri, 10 Jun 2016 13:57:16 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (unknown [127.0.1.3]) by mx1.freebsd.org (Postfix) with ESMTP id 5F32413D7 for ; Fri, 10 Jun 2016 13:57:16 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 5A9FBB70351; Fri, 10 Jun 2016 13:57:16 +0000 (UTC) Delivered-To: java@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 5A3DBB70350 for ; Fri, 10 Jun 2016 13:57:16 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 3266D13D5 for ; Fri, 10 Jun 2016 13:57:16 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id u5ADvGrx093123 for ; Fri, 10 Jun 2016 13:57:16 GMT (envelope-from bugzilla-noreply@freebsd.org) Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" From: bugzilla-noreply@freebsd.org To: java@FreeBSD.org Subject: maintainer-feedback requested: [Bug 210191] java/openjdk8: Fix for OpenJDK Network Crash (regression of PR 175417) Date: Fri, 10 Jun 2016 13:57:16 +0000 X-Bugzilla-Type: request X-Bugzilla-Product: Ports & Packages X-Bugzilla-Component: Individual Port(s) X-Bugzilla-Version: Latest X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: java@FreeBSD.org X-Bugzilla-Flags: maintainer-feedback? Message-ID: In-Reply-To: References: X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-java@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Porting Java to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 10 Jun 2016 13:57:16 -0000 Andrew Smith has reassigned Bugzilla Automation 's request for maintainer-feedback to java@FreeBSD.or= g: Bug 210191: java/openjdk8: Fix for OpenJDK Network Crash (regression of PR 175417) https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D210191 --- Description --- PR 175417 observed that the change to select() 2 from poll() produced crash= es in java/openjdk7. This was initially provided as a FreeBSD patch to the bsd-port of OpenJDK a= nd then was adopted upstream directly into bsd-port. This change was never added to the jdk8 upstream bsd-port at the OpenJDK mercurial repo and since the patch was previosuly available ustream from jd= k7 it was never added to the jdk8 port either. The result is that java/openjdk8 is susceptible to crashes on network times= outs just as java/openjdk7 was. I have personally observed this in a perormance test environment that could produce the failure within 10 minutes using 6 Tomcat servers using a JMeter test for one of our applications as the back end infrastructure started to saturate and introduce network timeouts. The source file effected is jdk/src/solaris/native/java/net/bsd_close.c whi= ch requires the conditional switch back to using the poll mechanism if not on = an Apple platform. This file in the upstream differs only in that it lacks this conditional handling for NET_Timeout for non Apple platforms so this patch has been effectively reassembled from that change between the bsd-port/jdk8 and bsd-port/bsd-port for the java/openjdk8 port. Ideally this should go upstream into bsd-port/jdk8 but for now it is needed= in the FreeBSD port to stabilise any high throughput network applications that= may suffer frequent NET_Timeout conditions. Crashes in our environment without the patch under Apache Tomcat 8 result i= n a wide variety of SIGBUS and SIGSEGV errors often in GCTaskThread or VMThread. The patch provided can be applied by simply dropping it into /usr/ports/java/openjdk8/files prior to a port build.