Hello. If it's helpful to know, I had a problem very similar to this, which seems to have disappeared on upgrading to the 2.6.11 kernel. (Specifically by installing kernel-image-2.6.11-9-amd64-k8.) I was previously running an amd64 build of 2.6.10 in a 32-bit userspace, as was the original reporter.
I don't have totem installed, but I was having what seem to have been almost identical problems with xmms. As soon as there was any attempt at audio output, either X11 or the kernel would crash. Installing the suggested experimental packages didn't fix anything under 2.6.10, but they've remained installed since I upgraded to kernel 2.6.11 and it's now working. Mike.
