Messages in this thread | | | Date | Mon, 27 Apr 2009 15:07:12 -0400 | From | Bill Davidsen <> | Subject | Re: [2.6.30-rc2] CD-R: wodim intermittent failures: [sr0] Add. Sense: Logical block address out of range, sector 0 |
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Joerg Schilling wrote: > I see two possible problems that should be first resolved. > > 1) You are using "wodim" instead of cdrecord. > "wodim" is a very old version (4+ years) of cdrecord with > additional bugs. Due to Copyright & GPL violations, it cannot > even be legally distributed. > > 2) You may be using the linux hald version > > I recommend to first get a recent original cdrtools package from > > ftp://ftp.berlios.de/pub/cdrecord/alpha/ > > and to try with this after running "make install" as root. > As Linux requires root privileges for many SCSI commands, you need to > install cdreord suid root which is automatically done via "make install" > as root. > > If your problem persists, try to kill hald. Hald on Linux has many problems: > > - It looks for the wrong state transitions on the CD drive > and thus distrurbes CD/DVD/BD writing. It may e.g. try to mount a CD > that has not yet been fully written. > Appears to be true, but that's not a kernel problem, it's a hald problem, the fix belongs there.
> - The O_EXCL metod it believes on just cannot ever work correctly: > > - You would not be able to read out written media CD-DA or CD-ROM > > - You would not be able to deal with multi-session media > I don't quite see how these two follow from using O-EXCL, assuming the device is released after writing, but see next:
> - As Linux offers to access CD/DVD/BD-drives vie more than one > device driver and as these device drivers don't know each other > O_EXCL cannot work anyway. > And that is a kernel problem, allowing multiple access paths which don't share exclusion is a dubious design decision. O_EXCL really should work.
> If your problem still persists, you may have a Linux kernel problem. > The usual solution is to tell hald and your window manager of choice not to mount things automatically, or at least not while they are opened. But that's a fudge, not a fix, O_EXCL should positively prevent this problem.
> BTW: please keep me on CC: > > Jörg >
-- Bill Davidsen <davidsen@tmr.com> "We have more to fear from the bungling of the incompetent than from the machinations of the wicked." - from Slashdot
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