Hmm, I guess there's still something wrong with your debug patch (or me applying it...). Doesn't look like any valuable information in syslog this time (no fixed_endpoint quirk): Jul 8 17:04:16 yerbouti kernel: [19340.109648] usb 2-3: config 1 interface 3 altsetting 0 bulk endpoint 0x7 has invalid maxpacket 8 Jul 8 17:04:16 yerbouti kernel: [19340.109653] usb 2-3: config 1 interface 3 altsetting 0 bulk endpoint 0x87 has invalid maxpacket 8 Jul 8 17:04:16 yerbouti kernel: [19340.110762] usb 2-3: New USB device found, idVendor=0763, idProduct=2081 Jul 8 17:04:16 yerbouti kernel: [19340.110765] usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0 Jul 8 17:04:16 yerbouti kernel: [19340.110769] usb 2-3: Product: Fast Track Ultra 8R Jul 8 17:04:16 yerbouti kernel: [19340.110771] usb 2-3: Manufacturer: M-Audio Jul 8 17:04:16 yerbouti kernel: [19340.110916] usb 2-3: configuration #1 chosen from 1 choice Regards, Felix Am 08.07.2010 15:10, schrieb Clemens Ladisch: > BUG: unable to handle kernel NULL pointer dereference > > Sorry, the call for the case without the fixed quirk is buggy. > In line 199 of format.c, please change "fp->rates" to "fp->rate_table". > > > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel