Messages in this thread | | | Subject | Re: [Problem] slow write to dvd-ram since 2.6.7-bk8 | From | Droebbel <> | Date | Mon, 14 Feb 2005 13:34:48 +0100 |
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On Mo, 2005-02-14 at 11:53 +0100, Tino Keitel wrote: >On Mon, Feb 14, 2005 at 11:25:34 +0100, Droebbel wrote: >> Which 2.6.7 did you use? > >Only 2.6.7 with a -mm patch, since vanilla 2.6.7 screwed up my system >clock, and the noapic option which was suggested to unscrew the clock >screwed up the USB driver etc... :-(
Which -mm patch? If that patch contains the error, the bk8 contains it as well and the bk7 doesn't, that might already make serching a bit easier. Or maybe 2.6.6, if you want a stable release. Not tested yet.
>What kernels do you suggest me to test? You might try the last working one, 2.6.7 with bk7. You might as well have to replace the drivers/cdrom/cdrom.c with on from a later virsion (>bk15), as the cdrom device is generally marked write-protected with bk2 to bk14. But instead of just trying those kernel versions, I think we might try and find the changes that might have had the unfortunate side effect. I am admittedly not too good at that, as I do not even know C (shame on me).
>And what test procedure? Thisis what I do in such cases: > >time { dd if=/dev/zero of=<path/to/bighile> bs=1024k count=<bignum> ; sync ; } This is what I did.
>I'd be very happy to see a fix for this since backups to DVD-RAM are >awfully slow at the moment. I've been after this for months now, before finally posting here...
Regards
David
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