Giulio Orsero <[email protected]> wrote: > On Sat, 09 Jan 2010 13:07:25 +0100, [email protected] > (Joerg Schilling) wrote: > > >Giulio <[email protected]> wrote: > > > >> I'd like to understand what are the pitfalls, if any, in using multi-extent > >> files, as enabled by mkisofs "--iso-level 3" option for files larger than > >> 4GiB-2, on Linux. > > >When I started to implement support for multi-extent files in Summer 2006 > >in mkisofs, Linux had a problem with reading multi-extent files that are not > >a multiple of 2048 bytes. IIRC, this problem disappeared in 2007 already. > >BTW: IIRC, I received an I/O error for the last read before the bug was > >fixed. > > RHEL5's 2.6.18 kernel originated in 2006, so we are in that time frame.
Well, if you can read files > 4 GB correctly, it may be that the problem has been fixed in a different way. is there any patch related to iso9660 in your kernel? > >This perfectly fits to the problem I have in mind, so it seems that > >the bug was fixed long time ago. Are you sure that your kernel really does > >not include the patch? > > Yes, the RHEL5 kernel hasn't got the patch and the patch applies cleanly to > it. This is why I'm worried. > > I was about starting using files > 4GB w/o splitting them, my tests were OK, > but now I'm worried I may find some corner cases I don't know how to test > beforehand. If you tested content and readability, you seem to have made a 100% test. A content verification needs to make sure that the parts > 4 GB have different content than anything in the file before. Jörg -- EMail:[email protected] (home) Jörg Schilling D-13353 Berlin [email protected] (uni) [email protected] (work) Blog: http://schily.blogspot.com/ URL: http://cdrecord.berlios.de/private/ ftp://ftp.berlios.de/pub/schily -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
