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6610420: Debug VM crashes during monitor lock rank checking

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Make SerializePage lock as raw lock and add name for mutex locks

Reviewed-by: never, dice, dholmes
This commit is contained in:
Xiaobin Lu 2008-02-05 23:21:57 -08:00
parent f7eb451719
commit f804a7e9f9
5 changed files with 24 additions and 24 deletions
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13
hotspot/src/share/vm/runtime/mutex.cpp
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@ -1119,10 +1119,15 @@ Monitor::~Monitor() {
assert ((UNS(_owner)|UNS(_LockWord.FullWord)|UNS(_EntryList)|UNS(_WaitSet)|UNS(_OnDeck)) == 0, "") ;
}
void Monitor::ClearMonitor (Monitor * m) {
void Monitor::ClearMonitor (Monitor * m, const char *name) {
m->_owner = NULL ;
m->_snuck = false ;
m->_name = "UNKNOWN" ;
if (name == NULL) {
strcpy(m->_name, "UNKNOWN") ;
} else {
strncpy(m->_name, name, MONITOR_NAME_LEN - 1);
m->_name[MONITOR_NAME_LEN - 1] = '\0';
}
m->_LockWord.FullWord = 0 ;
m->_EntryList = NULL ;
m->_OnDeck = NULL ;
@ -1133,7 +1138,7 @@ void Monitor::ClearMonitor (Monitor * m) {
Monitor::Monitor() { ClearMonitor(this); }
Monitor::Monitor (int Rank, const char * name, bool allow_vm_block) {
ClearMonitor (this) ;
ClearMonitor (this, name) ;
#ifdef ASSERT
_allow_vm_block = allow_vm_block;
_rank = Rank ;
@ -1145,7 +1150,7 @@ Mutex::~Mutex() {
}
Mutex::Mutex (int Rank, const char * name, bool allow_vm_block) {
ClearMonitor ((Monitor *) this) ;
ClearMonitor ((Monitor *) this, name) ;
#ifdef ASSERT
_allow_vm_block = allow_vm_block;
_rank = Rank ;