8059559: SIGSEGV at CodeHeap::allocate(unsigned int, bool)
Summary: Create the non-profiled code heap if TieredStopAtLevel=0 is set because we compile method handle intrinsics.
Reviewed-by: kvn
--- a/hotspot/src/share/vm/code/codeCache.cpp Fri Oct 03 13:34:46 2014 -0700
+++ b/hotspot/src/share/vm/code/codeCache.cpp Mon Oct 06 07:58:50 2014 +0200
@@ -254,8 +254,7 @@
if (!SegmentedCodeCache) {
// No segmentation: use a single code heap
return (code_blob_type == CodeBlobType::All);
- } else if ((Arguments::mode() == Arguments::_int) ||
- (TieredStopAtLevel == CompLevel_none)) {
+ } else if (Arguments::mode() == Arguments::_int) {
// Interpreter only: we don't need any method code heaps
return (code_blob_type == CodeBlobType::NonNMethod);
} else if (TieredCompilation && (TieredStopAtLevel > CompLevel_simple)) {
--- a/hotspot/test/compiler/codecache/CheckSegmentedCodeCache.java Fri Oct 03 13:34:46 2014 -0700
+++ b/hotspot/test/compiler/codecache/CheckSegmentedCodeCache.java Mon Oct 06 07:58:50 2014 +0200
@@ -38,22 +38,26 @@
private static void verifySegmentedCodeCache(ProcessBuilder pb, boolean enabled) throws Exception {
OutputAnalyzer out = new OutputAnalyzer(pb.start());
+ out.shouldHaveExitValue(0);
if (enabled) {
try {
// Non-nmethod code heap should be always available with the segmented code cache
out.shouldContain(NON_METHOD);
} catch (RuntimeException e) {
- // TieredCompilation is disabled in a client VM
- out.shouldContain("TieredCompilation is disabled in this release.");
+ // Check if TieredCompilation is disabled (in a client VM)
+ if(!out.getOutput().contains("TieredCompilation is disabled in this release.")) {
+ // Code cache is not segmented
+ throw new RuntimeException("No code cache segmentation.");
+ }
}
} else {
out.shouldNotContain(NON_METHOD);
}
- out.shouldHaveExitValue(0);
}
private static void verifyCodeHeapNotExists(ProcessBuilder pb, String... heapNames) throws Exception {
OutputAnalyzer out = new OutputAnalyzer(pb.start());
+ out.shouldHaveExitValue(0);
for (String name : heapNames) {
out.shouldNotContain(name);
}
@@ -86,6 +90,10 @@
"-XX:ReservedCodeCacheSize=240m",
"-XX:+PrintCodeCache", "-version");
verifySegmentedCodeCache(pb, true);
+ pb = ProcessTools.createJavaProcessBuilder("-XX:+TieredCompilation",
+ "-XX:ReservedCodeCacheSize=400m",
+ "-XX:+PrintCodeCache", "-version");
+ verifySegmentedCodeCache(pb, true);
// Always enabled if SegmentedCodeCache is set
pb = ProcessTools.createJavaProcessBuilder("-XX:+SegmentedCodeCache",
@@ -100,12 +108,13 @@
"-Xint",
"-XX:+PrintCodeCache", "-version");
verifyCodeHeapNotExists(pb, PROFILED, NON_PROFILED);
+
+ // If we stop compilation at CompLevel_none or CompLevel_simple we
+ // don't need a profiled code heap.
pb = ProcessTools.createJavaProcessBuilder("-XX:+SegmentedCodeCache",
"-XX:TieredStopAtLevel=0",
"-XX:+PrintCodeCache", "-version");
- verifyCodeHeapNotExists(pb, PROFILED, NON_PROFILED);
-
- // If we stop compilation at CompLevel_simple
+ verifyCodeHeapNotExists(pb, PROFILED);
pb = ProcessTools.createJavaProcessBuilder("-XX:+SegmentedCodeCache",
"-XX:TieredStopAtLevel=1",
"-XX:+PrintCodeCache", "-version");