kernel 9.0 crash on amd64

[tlaronde%polynum.com@localhost]

Hello,

Mainly in order to be able to test wine, I'm compiling a NetBSD kernel
from netbsd-9-0-RELEASE sources on an amd64 (Intel bicore).

My config has very minimal changes from NetBSD 8.* config, the only important
modification being USER_LDT (and I'm not putting option SVS).

When it crashes, keyboard is unavailable and the information repeated is:

prevented execution of 0x18 (SMEP)
fatal page fault in supervisor mode
trap type 6 code 0x10 rip 0x18 cs 0x8 rflags 0x10246 cr2 0x18 ilevel 0x8
rsp 0xffffcc00ae0cbb40

The last bit registered and shown by dmesg (when rebooting with the 8.0
kernel) is about enumerating ahcisata0.

Does this ring some bell to somebody?

TIA,
-- 
        Thierry Laronde <tlaronde +AT+ polynum +dot+ com>
                     http://www.kergis.com/
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