hg: jdk7/hotspot-rt/hotspot: 7007769: VM crashes with SIGBUS writing PerfData if tmp space is full

[bob.vandette at oracle.com]

Changeset: 02895c6a2f82
Author:    bobv
Date:      2010-12-20 14:30 -0500
URL:       http://hg.openjdk.java.net/jdk7/hotspot-rt/hotspot/rev/02895c6a2f82

7007769: VM crashes with SIGBUS writing PerfData if tmp space is full
Summary: Fill perfdata file with zeros to verify available disk space
Reviewed-by: coleenp, kamg

! src/os/linux/vm/perfMemory_linux.cpp