Messages in this thread | | | Date | Mon, 2 Apr 2007 08:42:45 +0200 | From | Jens Axboe <> | Subject | Re: mcdx -- do_request(): non-read command to cd!! |
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On Mon, Apr 02 2007, Rene Herman wrote: > On 04/01/2007 12:06 PM, Pekka Enberg wrote: > > >Looks like mcdx_xfer is sleeping while holding q->queue_lock. The > >attached (untested) patch should fix it. > > This (including your followup) does indeed avoid the traces in the > kernel log, but unfortunately, the driver seems to need a bit more.
I took a quick look at the driver, and it's pretty much utter crap so I would not expect much. If you want to use it, make sure you at least disable any form of SMP and preempt.
> Last time Al Viro suggested ripping them out, I slightly objected: > > http://lkml.org/lkml/2004/5/2/123 > > but well, although I like playing with this stuff, I still don't know > the first thing about the block layer and given the shape these things > are in...
The questionable quality of the ancient CDROM drivers itself makes it appealing to just dump it.
-- Jens Axboe
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