Date: Tue, 14 Apr 2009 10:15:39 -0400 From: John Baldwin <jhb@freebsd.org> To: Jung-uk Kim <jkim@freebsd.org> Cc: Diego Depaoli <trebestie@gmail.com>, freebsd-current@freebsd.org Subject: Re: AMD 780G chipset major issues 3/3 (btx) Message-ID: <200904141015.40280.jhb@freebsd.org> In-Reply-To: <200904131836.57686.jkim@FreeBSD.org> References: <83e5fb980904061402q73940f8at4ec4b8f821354320@mail.gmail.com> <200904131305.12605.jhb@freebsd.org> <200904131836.57686.jkim@FreeBSD.org>
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On Monday 13 April 2009 6:36:55 pm Jung-uk Kim wrote: > On Monday 13 April 2009 01:05 pm, John Baldwin wrote: > > On Wednesday 08 April 2009 3:37:38 pm Diego Depaoli wrote: > > > On Tue, Apr 7, 2009 at 4:26 PM, John Baldwin <jhb@freebsd.org>=20 > wrote: > > > > On Monday 06 April 2009 5:02:53 pm Diego Depaoli wrote: > > > >> And finally... > > > >> if I enable ahci in bios the system won't boot =A0with btx > > > >> halted. Ctrl+alt+del is the only allowed action. > > > >> > > > >> Yes... it's a low cost motherboard, but I'm a bit confused. > > > > > > > > What OS release are you running? > > > > > > 8.0-CURRENT FreeBSD 8.0-CURRENT #19: Sun Apr 5 02:25:34 CEST > > > 2009 FreeBSD version 800074 > > > > Very odd, can you get a copy of the BTX fault output? >=20 > As I said earlier, I have a similar board and this is what I got: >=20 > int=3D0000000d err=3D00000000 efl=3D00030002 eip=3D000001b1 > eax=3D00000011 ebx=3D00000002 ecx=3D00009d82 edx=3D0009dbc8 > esi=3D000003f0 edi=3D00000368 ebp=3D000003a8 esp=3D00000362 > cs=3Dcf00 ds=3D0040 es=3D1400 fs=3D0000 gs=3D0000 ss=3D9d82 > cs:eip=3D2e 0f 01 16 7d 00 0f 20-c0 0c 01 0f 22 c0 eb 00 > b8 08 00 8e d8 8e c0 8e-d0 66 2e a1 54 00 66 8b > ss:esp=3D3f 00 c0 96 00 00 11 00-00 00 00 14 40 00 02 2f > 46 00 02 00 00 00 f0 03-00 00 a8 03 00 00 94 03 >=20 > The following is the disassembled code: >=20 > 0: 2e 0f 01 16 lgdtl %cs:(%esi) Are you sure you are using the real mode BTX? This trap has PSL_VM set in= =20 eflags: #define PSL_VM 0x00020000 /* virtual 8086 mode bit */ which would indicate that you are still using the old boot code. (Perhaps = you=20 have a new loader but have not installed new boot blocks using bsdlabel?) =2D-=20 John Baldwin
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