1.1 --- a/src/share/vm/memory/blockOffsetTable.cpp Tue May 10 12:26:10 2011 -0700
1.2 +++ b/src/share/vm/memory/blockOffsetTable.cpp Wed May 11 15:47:12 2011 -0700
1.3 @@ -541,20 +541,33 @@
1.4 // to go back by.
1.5 size_t n_cards_back = entry_to_cards_back(offset);
1.6 q -= (N_words * n_cards_back);
1.7 - assert(q >= _sp->bottom(), "Went below bottom!");
1.8 + assert(q >= _sp->bottom(),
1.9 + err_msg("q = " PTR_FORMAT " crossed below bottom = " PTR_FORMAT,
1.10 + q, _sp->bottom()));
1.11 + assert(q < _sp->end(),
1.12 + err_msg("q = " PTR_FORMAT " crossed above end = " PTR_FORMAT,
1.13 + q, _sp->end()));
1.14 index -= n_cards_back;
1.15 offset = _array->offset_array(index);
1.16 }
1.17 assert(offset < N_words, "offset too large");
1.18 index--;
1.19 q -= offset;
1.20 + assert(q >= _sp->bottom(),
1.21 + err_msg("q = " PTR_FORMAT " crossed below bottom = " PTR_FORMAT,
1.22 + q, _sp->bottom()));
1.23 + assert(q < _sp->end(),
1.24 + err_msg("q = " PTR_FORMAT " crossed above end = " PTR_FORMAT,
1.25 + q, _sp->end()));
1.26 HeapWord* n = q;
1.27
1.28 while (n <= addr) {
1.29 debug_only(HeapWord* last = q); // for debugging
1.30 q = n;
1.31 n += _sp->block_size(n);
1.32 - assert(n > q, err_msg("Looping at: " INTPTR_FORMAT, n));
1.33 + assert(n > q,
1.34 + err_msg("Looping at n = " PTR_FORMAT " with last = " PTR_FORMAT " _sp = [" PTR_FORMAT "," PTR_FORMAT ")",
1.35 + n, last, _sp->bottom(), _sp->end()));
1.36 }
1.37 assert(q <= addr, err_msg("wrong order for current (" INTPTR_FORMAT ") <= arg (" INTPTR_FORMAT ")", q, addr));
1.38 assert(addr <= n, err_msg("wrong order for arg (" INTPTR_FORMAT ") <= next (" INTPTR_FORMAT ")", addr, n));
