Sure, but it's just a warning, it should not break anything, nor stop anything from happening
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libdvdread in Ubuntu. https://bugs.launchpad.net/bugs/1179913 Title: Zero check failed in ifo_read.c:904 for pgc->subp_control[i] = 0x00000001 Status in “libdvdread” package in Ubuntu: Confirmed Bug description: When reading 'The Snowman' DVD from 2004, I get this output: jani@saegusa:DVD$ dvdbackup -i /dev/sr0 -M libdvdread: Using libdvdcss version 1.2.12 for DVD access libdvdread: Attempting to retrieve all CSS keys libdvdread: This can take a _long_ time, please be patient libdvdread: Get key for /VIDEO_TS/VIDEO_TS.VOB at 0x0000015a libdvdread: Elapsed time 0 libdvdread: Get key for /VIDEO_TS/VTS_01_0.VOB at 0x000001c1 libdvdread: Elapsed time 0 libdvdread: Get key for /VIDEO_TS/VTS_01_1.VOB at 0x00023749 libdvdread: Elapsed time 0 libdvdread: Get key for /VIDEO_TS/VTS_02_0.VOB at 0x000241f0 libdvdread: Elapsed time 0 libdvdread: Get key for /VIDEO_TS/VTS_02_1.VOB at 0x0002423d libdvdread: Elapsed time 0 libdvdread: Get key for /VIDEO_TS/VTS_03_0.VOB at 0x00024f03 libdvdread: Elapsed time 0 libdvdread: Get key for /VIDEO_TS/VTS_03_1.VOB at 0x00024f50 libdvdread: Elapsed time 0 libdvdread: Get key for /VIDEO_TS/VTS_04_0.VOB at 0x00025d8f libdvdread: Elapsed time 0 libdvdread: Get key for /VIDEO_TS/VTS_04_1.VOB at 0x00025ddc libdvdread: Elapsed time 0 libdvdread: Get key for /VIDEO_TS/VTS_05_0.VOB at 0x000e2c65 libdvdread: Elapsed time 0 libdvdread: Get key for /VIDEO_TS/VTS_05_1.VOB at 0x000e2cb2 libdvdread: Elapsed time 0 libdvdread: Get key for /VIDEO_TS/VTS_06_0.VOB at 0x000eb4df libdvdread: Elapsed time 0 libdvdread: Get key for /VIDEO_TS/VTS_06_1.VOB at 0x000eb52c libdvdread: Elapsed time 0 libdvdread: Get key for /VIDEO_TS/VTS_07_0.VOB at 0x000f7617 libdvdread: Elapsed time 0 libdvdread: Get key for /VIDEO_TS/VTS_07_1.VOB at 0x000f7664 libdvdread: Elapsed time 0 libdvdread: Get key for /VIDEO_TS/VTS_08_0.VOB at 0x00128eb1 libdvdread: Elapsed time 0 libdvdread: Get key for /VIDEO_TS/VTS_08_1.VOB at 0x00128efe libdvdread: Elapsed time 0 libdvdread: Get key for /VIDEO_TS/VTS_09_0.VOB at 0x001da296 libdvdread: Elapsed time 0 libdvdread: Get key for /VIDEO_TS/VTS_09_1.VOB at 0x001da2e3 libdvdread: Elapsed time 0 libdvdread: Get key for /VIDEO_TS/VTS_10_0.VOB at 0x001e3856 libdvdread: Elapsed time 0 libdvdread: Get key for /VIDEO_TS/VTS_10_1.VOB at 0x001e38a3 libdvdread: Elapsed time 0 libdvdread: Found 10 VTS's libdvdread: Elapsed time 0 *** Zero check failed in /build/buildd/libdvdread-4.2.0/src/ifo_read.c:904 for pgc->subp_control[i] = 0x00000001 *** Zero check failed in /build/buildd/libdvdread-4.2.0/src/ifo_read.c:904 for pgc->subp_control[i] = 0x00000001 *** Zero check failed in /build/buildd/libdvdread-4.2.0/src/ifo_read.c:904 for pgc->subp_control[i] = 0x00000001 This doesn't prevent dvdbackup from finishing up, and the resulting copy looks to be fine (on cursory inspection). While dvdbackup is running, the issue also doesn't cause an OOM as in Bug #377414. Still, I tested libdvdread4_4.2.0+20130428-0ubuntu0~bryce~precise1_amd64.deb from Bryce Harrington's PPA [1], but it just slightly changed the "Zero check failed" output: *** Zero check failed in ifo_read.c:904 for pgc->subp_control[i] = 0x00000001 *** Zero check failed in ifo_read.c:904 for pgc->subp_control[i] = 0x00000001 *** Zero check failed in ifo_read.c:904 for pgc->subp_control[i] = 0x00000001 This DVD is the only one I've come across manifesting this, and I've backed up some 40 DVDs so far on this same setup. *[1] https://launchpad.net/~bryce/+archive/lp377414/+build/4542681 ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: libdvdread4 4.2.0-1ubuntu3 ProcVersionSignature: Ubuntu 3.5.0-29.49~precise1-generic 3.5.7.11 Uname: Linux 3.5.0-29-generic x86_64 ApportVersion: 2.0.1-0ubuntu17.2 Architecture: amd64 CheckboxSubmission: 09ae689090491ca53449589269e4bfd8 CheckboxSystem: edda5d4f616ca792bf437989cb597002 Date: Tue May 14 14:49:44 2013 InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027) MarkForUpload: True SourcePackage: libdvdread UpgradeStatus: Upgraded to precise on 2011-11-21 (540 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libdvdread/+bug/1179913/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp