From owner-freebsd-java@freebsd.org Fri May 20 15:38:19 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 02E17B43E38 for ; Fri, 20 May 2016 15:38:19 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id E14DD10FB for ; Fri, 20 May 2016 15:38:18 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id E0A16B43E37; Fri, 20 May 2016 15:38:18 +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 E0448B43E35 for ; Fri, 20 May 2016 15:38:18 +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 D054310F9 for ; Fri, 20 May 2016 15:38:18 +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 u4KFcIPW058652 for ; Fri, 20 May 2016 15:38:18 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: java@FreeBSD.org Subject: [Bug 209599] Related to JDK-6934977 : MappedByteBuffer.load can SIGBUS/SIGSEGV if file is truncated java/openjdk8 and java/openjdk7 Date: Fri, 20 May 2016 15:38:18 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None 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: iamasmith.home@gmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: java@FreeBSD.org X-Bugzilla-Flags: maintainer-feedback? X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable 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, 20 May 2016 15:38:19 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D209599 --- Comment #16 from Andrew Smith --- The patches attached simply add in SIGSEGV as a possible signal that needs = to be handled as the exception whilst using sun.misc.Unsafe functions. The original implementation had handlers for SIGBUS only and with this chan= ge the handlers now raise the appropriate java exception rather than fatally killing the vm. root@testbuild1:~ # /usr/local/openjdk8/bin/java -cp . Truncate java.lang.InternalError: a fault occurred in a recent unsafe memory access operation in compiled Java code at java.nio.MappedByteBuffer.load(MappedByteBuffer.java:175) at Truncate$2.call(Truncate.java:70) at Truncate$2.call(Truncate.java:68) at Truncate$3.run(Truncate.java:85) at java.lang.Thread.run(Thread.java:745) root@testbuild1:~ # /usr/local/openjdk7/bin/java -cp . Truncate java.lang.InternalError: a fault occurred in a recent unsafe memory access operation in compiled Java code at java.nio.MappedByteBuffer.load(MappedByteBuffer.java:175) at Truncate$2.call(Truncate.java:70) at Truncate$2.call(Truncate.java:68) at Truncate$3.run(Truncate.java:85) at java.lang.Thread.run(Thread.java:745) root@testbuild1:~ # --=20 You are receiving this mail because: You are the assignee for the bug.=