BTX problems
Kenneth D. Merry
ken at FreeBSD.org
Sat Aug 20 05:02:19 GMT 2005
On Tue, Aug 16, 2005 at 13:39:48 -0400, John Baldwin wrote:
> On Saturday 13 August 2005 06:12 pm, Kenneth D. Merry wrote:
> >
> > I just updated a machine from -current as of late March to -current as of
> > last night, and I'm having trouble booting it.
> >
> > It's a dual 1GHz Pentium III box, Supermicro 370DE6 motherboard.
> > (Serverworks chipset.) It is booting off of an onboard Adaptec 7899.
> >
> > When I try to boot it, I get some BTX errors and BTX halts:
> >
> > http://people.freebsd.org/~ken/btx_halted.20050813/IMG_4943.JPG
> > http://people.freebsd.org/~ken/btx_halted.20050813/IMG_4944.JPG
> >
> > (Same information, the first one was taken with flash and is a little more
> > washed out, the second one is taken without flash and is therefore a tad
> > more blurry.)
> >
> > The loader from March works fine, but the new one fails. It's 100%
> > repeatable.
> >
> > Anyone have any ideas what's going on?
>
> int=00000005 err=00000000 efl=00010a17 eip=36f63583
> eax=00032174 ebx=0384c000 ecx=0005c360 edx=0002e7e6
> esi=32034048 edi=00000022 ebp=000384c0 esp=ca083384
> cs=002b ds=0033 es=0033 fs=0033 gs=0033 ss=0033
> cs:eip=62 63 2f 6c 6f 63 61 6c-65 2f 6c 6d 6f 6e 65 74
> 61 72 79 2e 63 2c 76 20-31 2e 31 32 2e 32 2e 32
> ss:esp=ff ff ff ff ff ff ff ff-ff ff ff ff ff ff ff ff
> ff ff ff ff ff ff ff ff-ff ff ff ff ff ff ff ff
> BTX halted
>
> Well, your stack is way off in the weeds and so is your instruction pointer,
> so I'm not sure what else you can do there. It's executing a string, so
> little surprise that it eventually faulted:
>
>
> > echo " 62 63 2f 6c 6f 63 61 6c-65 2f 6c 6d 6f 6e 65 74 61 72 79 2e 63 2c 76
> 20-31 2e 31 32 2e 32 2e 32" | tr '-' ' ' | sed -e 's/ / 0x/g' | dh | hd
>
> 00000000 62 63 2f 6c 6f 63 61 6c 65 2f 6c 6d 6f 6e 65 74 |bc/locale/lmonet|
> 00000010 61 72 79 2e 63 2c 76 20 31 2e 31 32 2e 32 2e 32 |ary.c,v 1.12.2.2|
> 00000020
>
> There haven't been a whole lot of changes. My guess would be the recently
> added smbios support. You can probably just comment out the call to
> smbios_detect() in sys/boot/i386/loader/main.c as a simple test for that. It
> could also possibly be the multiple console support in which case it would be
> easiest to just step your sys/boot tree back using CVS. The good news is
> that sys/boot is largely self-contained so you can step it back while keeping
> the rest of the tree up to date for testing purposes at least.
Thanks for the tips!
Commenting out smbios_detect() did the trick. The loader works fine after
that.
So now what? Is there a way to fix it so it won't crash on my system?
Ken
--
Kenneth Merry
ken at FreeBSD.ORG
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