> Have you tuned your irq setup? > > Read my little page on the subject > > http://tapas.affenbande.org/wordpress/?page_id=40 Thanks Florian, very helpful. Apparently, my ohci1394 device is sharing interrupts with my internal sound card, my internal modem's sound device, my Ethernet card, my USB stick, and an unidentified device. I just asked on the Freebob list how to make ohci1394 use a dedicated interrupt (or share it with an unused device like ide2 in my case), maybe you can help as well? Carlo