Date: Wed, 01 Apr 2009 18:24:21 -0500 From: Adam Vandemore <amvandemore@gmail.com> To: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: DVD playback issue: FAILURE - non aligned DMA transfer attempted Message-ID: <49D3F7A5.6050708@gmail.com> In-Reply-To: <3b47caa90904011600l1589900ck6ef9abc4a6c7a43d@mail.gmail.com> References: <3b47caa90904011600l1589900ck6ef9abc4a6c7a43d@mail.gmail.com>
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Novembre wrote: > I am trying to rip a part of a DVD to my hard drive on my RELENG_7 machine > (as of February 19, 2009) > using mencoder. I have '/dev/cd0 /home/mnt/cdrom cd9660 > ro,noauto 0 0' in /etc/fstab and the > following two lines in /etc/devfs.conf: > own /dev/cd0 root:operator > perm /dev/cd0 0660 > > I mount the DVD to ~/mnt/cdrom and run gmplayer to see if it can play the > DVD. Right-clicking on the > MPlayer-Video window and selecting Preferences-->Misc, I have set "DVD > device" and "CD-ROM device" > (the last two lines) to /dev/cd0 (otherwise it won't even recognize the > drive). Then, by right-clicking on > MPlayer-Video, I select 'DVD-->Open disc...' and it shows some information > about the DVD (like the number > of chapters, audio streams, subtitles, etc.) in the terminal window from > which gmplayer was run and then > nothing happens except a non-stop hard drive activity. I suspected something > and checked /var/log/messages. > The following two lines are being constantly, non-stop added to > /var/log/messages: > Apr 1 17:04:30 rsx4 kernel: ata3: FAILURE - non aligned DMA transfer > attempted > Apr 1 17:04:30 rsx4 kernel: acd0: setting up DMA failed > and I can't even close (or kill -9, for that matter) gmplayer. If I shut > down X, then I see a constant stream > of the previous two lines on the screen as the text-mode is coming up; there > is no command prompt. If I let > it continue, finally the /var partition will fill up. Also, even after > logging out of X, the gmplayer process is > still running and cannot be killed. Using Alt-F2 to switching to other > terminals becomes painfully slow and > at some point it stops responding. The only way is to reboot the system. > Note that it doesn't crash or panic > or anything. I just can't type anything after a while because of all these > error messages... > > I have these two lines in /boot/loader.conf > hw.ata.ata_dma="1" > hw.ata.atapi_dma="1" > in my first try. After the first failed attempt and reboot, googling around > led me to change the last line to > hw.ata.atapi_dma="0" > to no avail. > > I would like to, at least, play this DVD, so I'd appreciate any > help...thanks > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" > > Not 100% on this, but I think I solved this on my system awhile ago by setting dvd drive region code. -- Adam Vandemore Systems Administrator IMED Mobility (605) 498-1610
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