Is this change testable? ================ Comment at: lib/asan/asan_report.cc:458 @@ -456,1 +457,3 @@ // Report all objects in this frame. + const uptr kBufSize = 4095; + char buf[kBufSize]; ---------------- Isn't this buffer too large? (we may get stack overflow while reporting) http://reviews.llvm.org/D5554