Date: Sat, 10 Feb 2007 00:45:36 +0800 From: LI Xin <delphij@delphij.net> To: "Bruce M. Simpson" <bms@FreeBSD.org> Cc: stable@freebsd.org, current@freebsd.org, wsk@gddsn.org.cn Subject: Re: BTX halted with MegaRaid SCSI 320-2 on 6.2R help Message-ID: <45CCA530.3070003@delphij.net> In-Reply-To: <45CCA151.7030403@FreeBSD.org> References: <1171031359.45cc853f78c66@gddsn.org.cn> <45CCA151.7030403@FreeBSD.org>
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Bruce M. Simpson wrote:
> Hi,
>=20
> This isn't the answer, but I'm attempting to provide triage for jhb who=
> will probably look at it.
>=20
> This is a GPF, but it's not being caused by an attempt to enter
> protected mode, so it isn't the most-often reported BTX issue.
>=20
> wsk@gddsn.org.cn wrote:
>> 6.2R cd boot failed with follow error,and the MegaRAID fw version is
>> FW_1L33
>> thanks with any info
>> BTX loader 1.00 BTX version 1.01
>> Console: internal video/keyboard
>> BIOS CD is cd0
>> BIOS drive A: is disk0
>> BIOS drive C: is disk1
>>
>> BIOS 639kB/3668928kB available memory
>>
>> FreeBSD/i386 bootstrap loader, Revision 1.1
>> (root at root@dessler.cse.buffalo.edu, Fri Jan 12 06:40:38 UTC 2007)
>>
>> int=3D0000000d err=3D00000000 efl=3D00030086 eip=3D0000c3d4
>> eax=3D00008058 ebx=3D00002000 ecx=3D00000007 edx=3D0000fffa
>> esi=3D0000f69b edi=3D00040170 epb=3D000003d8 esp=3D00000358
>> cs=3Df000 ds=3D0040 es=3D5d18 fs=3D9fc0 gs=3Df000 ss=3D9e17
>> cs:eip=3Dec 50 e4 61 58 50 e4 61-58 ee 5a c3 01 00 e4 c3
>> 12 00 00 41 d0 0c 02 08-80 00 03 00 79 00 79 00 00
>> ss:esp=3D77 01 03 2c a1 00 08 2c-fa 02 00 e0 00 00 c0 9f
>> 00 00 4e 80 f3 ee 00 f0-03 24 00 e0 06 02 00 80
>> BTX halted
>>
>>
>> =20
>=20
> It looks like BIOS code at f000:c3d4 is trying to read a word from I/O
> port 0xfffa, and this is causing a GPF when it tries to write to what
> looks like the BIOS data area at 0040:0058; "cursor position for video
> page 4".
>=20
> 0: ec in (%dx),%al
> 1: 50 push %eax
> 2: e4 61 in $0x61,%al
> 4: 58 pop %eax
> 5: 50 push %eax
> 6: e4 61 in $0x61,%al
> 8: 58 pop %eax
^^^^^^^^^^^ The stack operations sound
mad to me :-) I think these is probably not what we expect...
> 9: ee out %al,(%dx)
> a: 5a pop %edx
> b: c3 ret
> c: 01 00 add %eax,(%eax)
> e: e4 c3 in $0xc3,%al
> 10: 12 00 adc (%eax),%al
> 12: 00 41 d0 add %al,0xffffffd0(%ecx)
> 15: 0c 02 or $0x2,%al
> 17: 08 80 00 03 00 79 or %al,0x79000300(%eax)
> 1d: 00 79 00 add %bh,0x0(%ecx)
Cheers,
--=20
Xin LI <delphij@delphij.net> http://www.delphij.net/
FreeBSD - The Power to Serve!
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