According to the ati.cchtml.com bug, this is actually a problem with libpciaccess not handling 64-bit pointers correctly in some cases. The patch available there is a patch for libpciaccess, described by its author as an "ugly hack" (on which I agree, as it seems to be hardware-specific to some degree).
As such, shouldn't this bug be redirected to the libpciaccess0 package? -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org