[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <82ecf08e0809021316l68272103q9daff7b12ed90e8b@mail.gmail.com>
Date: Tue, 2 Sep 2008 17:16:22 -0300
From: "Thiago Galesi" <thiagogalesi@...il.com>
To: "Alan Stern" <stern@...land.harvard.edu>
Cc: "Alex Buell" <alex.buell@...ted.org.uk>,
linux-kernel@...r.kernel.org, "Robert Hancock" <hancockr@...w.ca>,
"Tomas Styblo" <tripie@...n.org>, linux-usb@...r.kernel.org,
usb-storage@...ts.one-eyed-alien.net
Subject: Re: [PATCH] JMicron JM20337 USB-SATA data corruption bugfix - device 152d:2338
Hello
>
> I can't tell exactly what's happening, but your device is sending back
> a lot of error messages (Not Ready - Medium not present). Maybe it
> doesn't recognize the type of disc you have loaded. Also, there appears to be some program querying the state of your
> device 7 or 8 times every two seconds.
Ok, I suspect what this may be, and I'll disable it, hopefully
producing a cleaner log.
> However what finally caused the failure was a command (0xAC) which I
> don't recognize and apparently your drive doesn't recognize either.
Is this it? dfbb5d80 1845367929 C Bi:6:002:1 0 13 = 55534253 acc90100
00000000 00
Any idea who may be sending this? I mean, can this be send via a
simple IOCTL to /dev/sr0 or it is something else?
Maybe stracing the program would be a good idea.
If I were to place a trace inside a driver, were would it be better?
sr_mod, sd_mod, usb-storage, cdrom? or somewhere else?
Thank you
--
-
Thiago Galesi
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists