Created attachment 229599 [details] pciconf -lv I am trying to load mfsbsd version 13.0-STABLE amd64 via iPXE (chainloading using undionly.kpxe) on Intel D525MWV motherboard and get BTX halted error: int=00000006 err=00000000 efl=00010202 eip=0000a000 eax=0007ca14 abx=00000000 ecx=00000802 edx=000000e0 esi=0000004c edi=00004200 ebp=00000000 esp=0007ca08 cs=002b ds=0033 es=0033 fs=0033 gs=0033 ss=0033 cs:eip=ff ff 89 74 24 10 8b 94-24 98 00 00 00 89 bc 24 b0 00 00 00 89 d1 89 94-24 ac 00 00 00 8d 34 3a ss:esp=d4 c9 07 00 38 93 02 00-b2 05 01 00 44 ea 07 00 46 91 02 00 00 00 00 00-08 00 00 00 78 46 07 00 BTX halted Settings in BIOS: UEFI Boot: Disable Boot to Network: Enable PXE All previous versions of FreeBSD are loaded without problems (including 12.3-RC2).
Also I checked 13.0-BETA1 (releng/13.0-n244471-638e531019f) - error occurs. Thus, the problem occurs on the whole 13 branch of the FreeBSD. As I can see FreeBSD 13.0 is compiled with clang 11.0.1, FreeBSD 12.* is compiled with clang 10.0.1.
(In reply to terehovv from comment #1) Please see the the PR in "See also" for when the problem started and why it seems to be. If you can reproduce that there I'd suggest to mark this one a duplicate of 257018.
*** This bug has been marked as a duplicate of bug 257018 ***