Hi, uvm_fault(0xc0544100, 0, 0, 2)->0x0e kernel: page fault trap, code=0 Stopped in pid 12.1 (ioflush) at netbsd:vndstrategy+0x337: movl % edx, 0xc(%ebx) The vnd contains a cgd of 4,3 GB getting data pumped over from a DVD. Doesn't *seem* to correspond to existing PRs (?). -Florian