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Re: "Fix ATAPI transfer lengths" causes CD writing regression

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From: Alan Cox
Subject: Re: "Fix ATAPI transfer lengths" causes CD writing regression
Date: Tuesday, October 30, 2007 - 9:10 am

> > Any ideas?

Removing it breaks some devices on any controller.

I don't think this one is a simple compatibility issue - its a behaviour
we have done for ten years on PIIX/ICH chipsets without problems in the
old IDE. Also those logs of 66 bytes overrun are worrying - the app is
either issuing incorrectly sized commands, the drive is providing
incorrectly sized answers or something really evil is going on in the
midlayer translations.

And the ICH7 is in fact the chipset I did the original testing on ...

Need to work out if this is some nutty gentoo app, a quirky device we need
to dig into or something else. I've asked Daniel for some first test
points to try and eliminate the obvious.

Alan
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Messages in current thread:
"Fix ATAPI transfer lengths" causes CD writing regression, Daniel Drake, (Tue Oct 30, 8:14 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Alan Cox, (Tue Oct 30, 8:34 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Jeff Garzik, (Tue Oct 30, 9:02 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Alan Cox, (Tue Oct 30, 9:10 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Daniel Drake, (Tue Oct 30, 10:45 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Frans Pop, (Tue Oct 30, 11:26 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Alan Cox, (Tue Oct 30, 12:01 pm)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Daniel Drake, (Tue Oct 30, 12:21 pm)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Alan Cox, (Wed Oct 31, 4:49 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Jens Axboe, (Wed Oct 31, 4:57 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Jeff Garzik, (Wed Oct 31, 5:20 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Jens Axboe, (Wed Oct 31, 5:26 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Alan Cox, (Wed Oct 31, 5:49 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Jeff Garzik, (Wed Oct 31, 9:05 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Alan Cox, (Wed Oct 31, 9:29 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Daniel Drake, (Wed Oct 31, 9:34 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Jens Axboe, (Wed Oct 31, 10:55 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Tejun Heo, (Wed Oct 31, 5:40 pm)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Tejun Heo, (Thu Nov 1, 12:24 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Jeff Garzik, (Thu Nov 1, 2:48 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Alan Cox, (Thu Nov 1, 3:50 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Alan Cox, (Thu Nov 1, 3:53 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Jeff Garzik, (Thu Nov 1, 4:09 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Alan Cox, (Thu Nov 1, 7:15 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Daniel Drake, (Thu Nov 1, 8:33 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Alan Cox, (Thu Nov 1, 8:57 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Tejun Heo, (Thu Nov 1, 9:04 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Tejun Heo, (Thu Nov 1, 9:06 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Jeff Garzik, (Fri Nov 2, 10:58 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Daniel Drake, (Fri Nov 2, 2:19 pm)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Tejun Heo, (Fri Nov 2, 6:17 pm)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Jeff Garzik, (Sat Nov 3, 5:34 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Daniel Drake, (Sat Nov 3, 1:02 pm)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Tejun Heo, (Sat Nov 3, 5:07 pm)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Albert Lee, (Sat Nov 3, 9:02 pm)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Alan Cox, (Sun Nov 4, 4:42 pm)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Tejun Heo, (Sun Nov 4, 5:05 pm)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Daniel Drake, (Sun Nov 4, 5:15 pm)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Alan Cox, (Mon Nov 5, 6:03 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Tejun Heo, (Tue Nov 6, 3:18 am)
Re: "Fix ATAPI transfer lengths" causes CD writing regression, Alan Cox, (Tue Nov 6, 5:48 am)