Skip site navigation (1)Skip section navigation (2)
Date:      Sat, 28 Aug 2010 20:38:35 +0300
From:      Andriy Gapon <avg@icyb.net.ua>
To:        Garrett Wollman <wollman@freebsd.org>
Cc:        current@freebsd.org
Subject:   Re: Difficulty playing DVDs under AHCI/CAM?
Message-ID:  <4C79499B.3050305@icyb.net.ua>
In-Reply-To: <19577.18337.120013.129482@hergotha.csail.mit.edu>
References:  <19577.18337.120013.129482@hergotha.csail.mit.edu>

next in thread | previous in thread | raw e-mail | index | archive | help
on 28/08/2010 20:30 Garrett Wollman said the following:
> After a recent upgrade, I switched to AHCI/CAM for my SATA devices,
> including a new DVD drive.  Now I find that nothing can play DVDs any
> more.  For example, here's what mplayer does:

[snip]

>   8469 initial thread CALL  close(0x4)
>   8469 initial thread RET   close 0
>   8469 initial thread CALL  read(0x3,0x7fffffffb4d0,0x800)
>   8469 initial thread RET   read -1 errno 6 Device not configured
> 
> ...say what?  Why is the cd driver suddenly returning ENXIO?

Strange indeed.
Can you dtrace this read?  You can use combination of syscall and fbt providers
with execname predicate.

-- 
Andriy Gapon



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4C79499B.3050305>