Messages in this thread | | | Subject | Re: Unable to read UDF fs on a DVD | From | Pat LaVarre <> | Date | 23 Apr 2004 14:21:15 -0600 |
| |
> http://web.tiscali.it/kronoz/ucf_test.log > I don't see anything strange.
I now agree, that disc passed fsck and mount well enough to make the ls failure interesting.
What to try next after fsck passes, I do not know, ouch, sorry.
Offline I'm working to comment the fs/udf/ source. Even me finishing that might not do you much good, unless we can figure out how to reproduce your trouble at my desk.
Pat LaVarre
P.S. Five postscripts:
1)
> even with ide-scsi, though.
Whoa. You weren't engaging in the taboo act of running ide-scsi in 2.6 back when ls failed, were you? (If you are, then please remove ide-scsi, substitute ide-cd, and confirm or deny that exercise actually made no difference.)
2)
The disc didn't actually pass the phgfsck without complaint: The standard phgfsck egrep is:
$ egrep -i '(info|warning|error):' http://web.tiscali.it/kronoz/ucf_test.log PVD 72 Warning: Volume Set Identifier: "040420_0906", PVD 72 Warning: Volume Set Identifier: "040420_0906", Error: Number of AVDPs less than 2: 1, AVDP at 256 $
Non-compliance!
All the same, I'm guessing these complaints do Not explain the ls failure, since to my newbie ear these sound like mount issues and we know you can mount.
3)
I can't now rapidly reproduce the collection of file lengths you report, because sparse files in UDF, even when the underlying volume is not sparse, as yet crash my Linux-2.6.5.
3)
> Btw, don't know if it's related but I was unable to run ucf_test without > scsi emulation: it complained about unknown image chunk size. I can't > read files even with ide-scsi, though.
Yes phgfsck trouble like that is normal, thanks for asking.
4)
> > P.S. The subscriber-only archives of linux_udf@h... currently show > > Linux-2.6.5 issues now under discussion, including an issue people have > > reproduced by downloading a huge trial .exe into Windows and then > > copying a file of more than 2 GiB to the disc. > > I think that this is a different issue, files on my disk are smaller.
I agree your conclusion is reasonable, I do not myself yet know the udf.ko code well enough to firmly confirm or deny your conclusion.
5)
> http://web.tiscali.it/kronoz/ucf_test.log
Any chance this link will still work, a year from now? (I ask because I'm hoping to see a collection of observed UDF non-compliance come into being.)
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |