Date: Fri, 20 May 2016 15:38:18 +0000 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 Message-ID: <bug-209599-8522-fnGIfWRW2E@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-209599-8522@https.bugs.freebsd.org/bugzilla/> References: <bug-209599-8522@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=209599 --- Comment #16 from Andrew Smith <iamasmith.home@gmail.com> --- 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 change 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:~ # -- You are receiving this mail because: You are the assignee for the bug.help
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