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As you know I've been trying to burn a few DVDs. My setup is not that orthodox - I have a USB 2.0 card that plugs into the USB slot of my laptop. I plug an Emprex DVD drive into that adapter card.
It all seems work fine, with a second USB bus being created and the DVD drive being /dev/sr0.
However, when I try to use the DVD either to watch DVDs or to burn DVDs, a series of errors occurs, which mean IRQ 11 is lost. Unfortunately, by ethernet card and both USB buses use IRQ 11.
The errors I get include: NETDEV WATCHDOG: eth0 trasmit timeout and disabled IRQ 11. The result is that I can't connect to the internet and whatever DVD operation I'm conducting slows to a crawl and then stops.
Unfortunately, there appears to be bugs in the USB driver or ACPI. Booting with the kernel option acpi=off seems to solve the problem.
I'm using kernel 2.6.11.
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