Two small changes regarding GC ticks.

src/log.cc

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 120 matching lines @@
 };
 
 bool Profiler::paused_ = false;
 
 
 //
 // StackTracer implementation
 //
 void StackTracer::Trace(TickSample* sample) {
   // Assuming that stack grows from lower addresses
-  if (sample->sp < sample->fp && sample->fp < low_stack_bound_) {
+  if (sample->state != GC
+      && (sample->sp < sample->fp && sample->fp < low_stack_bound_)) {
     sample->InitStack(1);
     sample->stack[0] = Memory::Address_at(
         (Address)(sample->fp + StandardFrameConstants::kCallerPCOffset));
   } else {
-    // FP seems to be in some intermediate state, better discard this sample
+    // GC runs or FP seems to be in some intermediate state,
+    // better discard this sample
     sample->InitStack(0);
   }
 }
 
 
 //
 // Ticker used to provide ticks to the profiler and the sliding state
 // window.
 //
 class Ticker: public Sampler {
@@ skipping 977 matching lines @@
   if (FLAG_log_state_changes) {
     LOG(UncheckedStringEvent("Leaving", StateToString(state_)));
     if (previous_) {
       LOG(UncheckedStringEvent("To", StateToString(previous_->state_)));
     }
   }
 }
 #endif
 
 } }  // namespace v8::internal