Description of problem: I have a data DVD which has both filesystems on it - UDF and ISO9660. Reading a specific file while the DVD is mounted as UDF just results in a bunch of NUL bytes. Reading the same file while the DVD is mounted as ISO9660 results in usable data. See: $ sudo mount -t udf -o ro /dev/hdc /media/ $ mount | grep hdc /dev/hdc on /media type udf (ro) $ ls -l /media/gen/main_0.ark -r-xr-xr-x 1 4294967295 4294967295 2773199404 Mar 8 2006 /media/gen/main_0.ark $ dd if=/media/gen/main_0.ark bs=16 count=5 | hexdump -C 5+0 records in 5+0 records out 80 bytes (80 B) copied, 0.000100761 seconds, 794 kB/s 00000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 00000050 $ sudo umount /media/ $ sudo mount -t iso9660 -o ro /dev/hdc /media/ $ mount | grep hdc /dev/hdc on /media type iso9660 (ro) $ ls -l /media/gen/main_0.ark -r-xr-xr-x 1 root root 2773199404 Mar 8 2006 /media/gen/main_0.ark $ dd if=/media/gen/main_0.ark bs=16 count=5 | hexdump -C 5+0 records in 5+0 records out 00000000 77 39 db 7a 47 59 d3 ea c9 a9 3e 94 2c 72 13 7f |w9.zGY....>.,r..| 00000010 4d b5 c4 bb f9 71 d1 32 57 fb 0f cc 4a a3 d0 4a |M....q.2W...J..J| 00000020 f6 92 36 ab d7 1a 9d ca 1a 3e 97 46 d2 34 0b 21 |..6......>.F.4.!| 00000030 14 44 7e 14 41 02 2d 16 be 6e f3 a6 27 67 8f 46 |.D~.A.-..n..'g.F| 00000040 3e ba dc 3a 92 b4 41 e0 1a 24 06 03 61 1e e1 21 |>..:..A..$..a..!| 00000050 80 bytes (80 B) copied, 0.0666573 seconds, 1.2 kB/s Version-Release number of selected component (if applicable): kernel-2.6.18-1.2798.fc6 How reproducible: With this DVD always Steps to Reproduce: 1. See above 2. 3. Actual results: Unusable data when reading UDF Expected results: Usable data when reading UDF Additional info:
Other files from the same DVD read fine with UDF and ISO9660, btw.
This may be due to a 1GB size limitation in the UDF driver.
That 1GB file size limit should be lifted on latest kernels - is this still an issue? -Eric
Based on the date this bug was created, it appears to have been reported against rawhide during the development of a Fedora release that is no longer maintained. In order to refocus our efforts as a project we are flagging all of the open bugs for releases which are no longer maintained. If this bug remains in NEEDINFO thirty (30) days from now, we will automatically close it. If you can reproduce this bug in a maintained Fedora version (7, 8, or rawhide), please change this bug to the respective version and change the status to ASSIGNED. (If you're unable to change the bug's version or status, add a comment to the bug and someone will change it for you.) Thanks for your help, and we apologize again that we haven't handled these issues to this point. The process we're following is outlined here: http://fedoraproject.org/wiki/BugZappers/F9CleanUp We will be following the process here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping to ensure this doesn't happen again.