ata core dump

[Matevž Jekovec]

Binary package hint: linux-image-2.6.27-9-generic

Hi guys.

I'm experiencing a kernel panic in Intrepid. It happens on my 4 years old notebook when I try to use both hard disk and cdrom simultaniously.
A bug is reproducable by a simple test case. Computer freezes in 5-10 seconds:
$ dd if=/dev/scd0 of=/dev/null &
$ dd if=/dev/sda of=/dev/null

The bug occured when I upgraded from Gutsy to Hardy.

The effect is the same, if I turn off DMA:
$ hdparm -d 0 /dev/scd0

I attached a photo since no log can be written.

[Matevž Jekovec (matevz-jekovec)]

Attached output of hwinfo.

[Matevž Jekovec (matevz-jekovec)]

Another case when I switched off both disk and cdrom DMA. The trace is different.

[Jeremy Foshee (jeremyfoshee)]

This bug report was marked as Incomplete and has not had any updated comments for quite some time. As a result this bug is being closed. Please reopen if this is still an issue in the current Ubuntu release http://www.ubuntu.com/getubuntu/download . Also, please be sure to provide any requested information that may have been missing. To reopen the bug, click on the current status under the Status column and change the status back to "New". Thanks.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]