kern/120787: hardware troubles with atapicam and dvd

Andrew Muhametshin inspirra at yandex.ru
Mon Feb 18 11:30:01 UTC 2008


>Number:         120787
>Category:       kern
>Synopsis:       hardware troubles with atapicam and dvd
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Feb 18 11:30:01 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     Andrew Muhametshin
>Release:        FreeBSD-7.0-RC2
>Organization:
>Environment:
FreeBSD host01.localdomain 7.0-RC2 FreeBSD 7.0-RC2 #3: Mon Feb 18 09:30:32 MSK 2008     root at host01.localdomain:/usr/obj/usr/src/sys/HOST01  i386
>Description:
There is a device:
acd0: DVDR <TEAC DV-W516GDM/M4S2> at ata0-slave UDMA33
cd0: <TEAC DV-W516GDM M4S2> Removable CD-ROM SCSI-0 device

After issuing the command: "mplayer -dvd-device /dev/cd0 dvd://" it hangs up just after it starts, log file (/var/log/messages) is flooded constantly:
   Feb 18 12:29:39 host01 kernel: ata0: FAILURE - non aligned DMA transfer attempted
   Feb 18 12:29:39 host01 kernel: acd0: setting up DMA failed

Approximately two thousand records a second:
   $ egrep "Feb 18 12:29:39.+ata0: FAILURE.+DMA" /var/log/messages | wc -l
    2202

mplayer process cannot be killed (kill -9). And only system restart can stop it.

>How-To-Repeat:
$ kldload atapicam
# mplayer -dvd-device /dev/cd0 dvd://

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted:


More information about the freebsd-bugs mailing list