Fatal trap 12 in kernload()

Updated an i386 machine to -current, panicked with this overnight:

> Fatal trap 12: page fault while in kernel mode
> cpuid = 1; apic id = 06
> fault virtual address   = 0x7562676b
> fault code              = supervisor read, page not present
> instruction pointer     = 0x8:0x7562676b
> stack pointer           = 0x10:0xf822597c
> frame pointer           = 0x10:0xf82259a0
> code segment            = base 0x0, limit 0xfffff, type 0x1b
>                         = DPL 0, pres 1, def32 1, gran 1
> processor eflags        = interrupt enabled, resume, IOPL = 0
> current process         = 52613 (getty)
> Tracing pid 52613 tid 100360 td 0xd2d3a000
> kernload(cd533500,3,2000,d2d3a000,3) at 0x7562676b
> devfs_open(f8225a4c,c072025a,1e6,c07205ff,d235f134) at devfs_open+0x291
> VOP_OPEN_APV(c07340a0,f8225a4c,3,c076d398,1) at VOP_OPEN_APV+0x9e
> vn_open_cred(f8225bbc,f8225cbc,860,cd33e180,1) at vn_open_cred+0x45b
> vn_open(f8225bbc,f8225cbc,860,1,d2d3a000) at vn_open+0x33
> kern_open(d2d3a000,804f860,0,3,804f860) at kern_open+0xca
> open(d2d3a000,f8225d14,3a6,c071c691,d2d3a000) at open+0x36
> syscall(2f,2f,2f,2,804f860) at syscall+0x2c4
> Xint0x80_syscall() at Xint0x80_syscall+0x1f
> --- syscall (5, FreeBSD ELF32, open), eip = 0x280ca2cb, esp = 0xbfbfedfc, ebp = 0xbfbfee28 ---
> db>

Kris