I managed to get ahold of Toy Story 1 (and 2) and am reproducing the bug
in Precise.
*** libdvdread: CHECK_VALUE failed in
/build/buildd/libdvdread-4.2.0/src/ifo_read.c:1257 ***
*** for vts_ptt_srpt->title[i].ptt[j].pgn != 0 ***
*** libdvdread: CHECK_VALUE failed in
/build/buildd/libdvdread-4.2.0/src/ifo_read.c:1986 ***
*** for pgci_ut->nr_of_lus < 100 ***
libdvdread: Can't allocate memory for file read!
No VTS_TMAPT available - skipping.
Those errors appear to be repeating a couple times a minute or so. The
DVDs play fine in a regular DVD player. dd_rescue didn't work on it
(nor dd).
for(i = 0; i < vts_ptt_srpt->nr_of_srpts; i++) {
CHECK_VALUE(vts_ptt_srpt->title[i].nr_of_ptts < 1000); /* ?? */
for(j = 0; j < vts_ptt_srpt->title[i].nr_of_ptts; j++) {
CHECK_VALUE(vts_ptt_srpt->title[i].ptt[j].pgcn != 0 );
CHECK_VALUE(vts_ptt_srpt->title[i].ptt[j].pgcn < 1000); /* ?? */
CHECK_VALUE(vts_ptt_srpt->title[i].ptt[j].pgn != 0); /* <--- line 1257 */
CHECK_VALUE(vts_ptt_srpt->title[i].ptt[j].pgn < 100); /* ?? */
}
}
...
CHECK_ZERO(pgci_ut->zero_1);
CHECK_VALUE(pgci_ut->nr_of_lus != 0);
CHECK_VALUE(pgci_ut->nr_of_lus < 100); /* ?? 3-4 ? */ /* <-- line 1986 */
CHECK_VALUE((uint32_t)pgci_ut->nr_of_lus * PGCI_LU_SIZE < pgci_ut->last_byte);
Let's focus this bug report only on DVDs which hit the
pgci_ut->nr_of_lus assertions. Other error messages like the ones in
comments #8 and #15 may be unrelated bugs that deserve to be
investigated separately.
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https://bugs.launchpad.net/bugs/377414
Title:
libdvdread runs out of memory following libdvdread: CHECK_VALUE failed
in ifo_read.c:1913 on certain DVDs - Copy protection on The Dark
Knight and other recent DVDs
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