Getting errors writing large iso image to DVD (bug in atapi driver?)

[MAILING 2]

Hi,

I often recognized that problem with cheap DVD from discounters. As long
as I used
DVD+RW's  from Verbatim I didn't get those input/output errors. I noticed,
that cheap DVD's works with Windows and the same ISO File like a charme
but doesn't work with FreeBSD. Those errors with nasty DVD's were
reproducible
for me.
Christian


Yuri schrieb:
> I am trying to write iso image to blank DVD-R.
> Every time I try (with a new blank disk of course) I get this error:
>
>  4534108160/4691437568 (96.6%) @15.8x, remaining 0:10 RBU 100.0% UBU  53.1%
>  :-[ WRITE at LBA=21df50h failed with SK=3h/ASC=0Ch/ACQ=00h]: Input/output error
>  :-( write failed: Input/output error
>  /dev/pass0: flushing cache
>  /dev/pass0: updating RMA
>  /dev/pass0: closing disc
>
> And dmesg says:
> g_vfs_done():acd0[READ(offset=4290936832, length=65536)]error = 5
> acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x11 ascq=0x05
> g_vfs_done():acd0[READ(offset=4290936832, length=4096)]error = 5
> acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x11 ascq=0x05
> g_vfs_done():acd0[READ(offset=4290940928, length=65536)]error = 5
>
> ISO file is very large, almost at the limit: 4691437568 bytes. (limit is
> 4700000000+tiny bit).
> I use command 'growisofs -dvd-compat -speed=16 -Z /dev/cd0=my.iso' to write.
> And my burner is brand new PIONEER DVD-RW DVR-112D 1.21. Burned only 5-6 DVDs yet.
>
> Why would is such error be reproducible?
> I vaguely remember that my old writer (Sony) had similar problem and particular
> large iso images were reproducibly failing with the similar message.
>
> Does this suggest that ATAPI driver has some bug?
>
> Thanks,
> Yuri
>
> FreeBSD xxx.xxx.xxx 6.2-STABLE FreeBSD 6.2-STABLE #9: Tue Oct  2 01:27:22 PDT
> 2007     yuri at xxx.xxx.xxx:/usr/obj/usr/src/sys/GENERIC  i386
> _______________________________________________
> freebsd-questions at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> To unsubscribe, send any mail to "freebsd-questions-unsubscribe at freebsd.org"
>