--- a/hotspot/src/share/vm/code/codeCache.cpp Thu Apr 14 01:53:12 2011 -0700
+++ b/hotspot/src/share/vm/code/codeCache.cpp Thu Apr 14 06:46:38 2011 -0700
@@ -971,8 +971,6 @@
if (CodeCache_lock->owned_by_self()) {
return _heap->largest_free_block();
} else {
- // Avoid lock ordering problems with ttyLock.
- ttyUnlocker ttyul;
MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
return _heap->largest_free_block();
}
--- a/hotspot/src/share/vm/compiler/compileBroker.cpp Thu Apr 14 01:53:12 2011 -0700
+++ b/hotspot/src/share/vm/compiler/compileBroker.cpp Thu Apr 14 06:46:38 2011 -0700
@@ -1736,8 +1736,14 @@
UseInterpreter = true;
if (UseCompiler || AlwaysCompileLoopMethods ) {
if (xtty != NULL) {
+ stringStream s;
+ // Dump code cache state into a buffer before locking the tty,
+ // because log_state() will use locks causing lock conflicts.
+ CodeCache::log_state(&s);
+ // Lock to prevent tearing
+ ttyLocker ttyl;
xtty->begin_elem("code_cache_full");
- CodeCache::log_state(xtty);
+ xtty->print(s.as_string());
xtty->stamp();
xtty->end_elem();
}
--- a/hotspot/src/share/vm/runtime/sweeper.cpp Thu Apr 14 01:53:12 2011 -0700
+++ b/hotspot/src/share/vm/runtime/sweeper.cpp Thu Apr 14 06:46:38 2011 -0700
@@ -418,6 +418,11 @@
// state of the code cache if it's requested.
void NMethodSweeper::log_sweep(const char* msg, const char* format, ...) {
if (PrintMethodFlushing) {
+ stringStream s;
+ // Dump code cache state into a buffer before locking the tty,
+ // because log_state() will use locks causing lock conflicts.
+ CodeCache::log_state(&s);
+
ttyLocker ttyl;
tty->print("### sweeper: %s ", msg);
if (format != NULL) {
@@ -426,10 +431,15 @@
tty->vprint(format, ap);
va_end(ap);
}
- CodeCache::log_state(tty); tty->cr();
+ tty->print_cr(s.as_string());
}
if (LogCompilation && (xtty != NULL)) {
+ stringStream s;
+ // Dump code cache state into a buffer before locking the tty,
+ // because log_state() will use locks causing lock conflicts.
+ CodeCache::log_state(&s);
+
ttyLocker ttyl;
xtty->begin_elem("sweeper state='%s' traversals='" INTX_FORMAT "' ", msg, (intx)traversal_count());
if (format != NULL) {
@@ -438,7 +448,7 @@
xtty->vprint(format, ap);
va_end(ap);
}
- CodeCache::log_state(xtty);
+ xtty->print(s.as_string());
xtty->stamp();
xtty->end_elem();
}