Re: Supermicro X8DT6 crashes in bootloader after r239066

On 11/14/12 03:17, Andriy Gapon wrote:
> on 31/10/2012 07:31 Navdeep Parhar said the following:
>> I have one of these X8DT6 systems.  It has grub2 as the primary boot
>> loader which then loads zfsloader.  Many weeks back I updated the BIOS,
>> grub, and FreeBSD and ran into a similar problem -- zfsloader would
>> start, print a few messages, and then the system would reboot.  I
>> tracked it down to the int 0x13 call (with eax=0x4800) in bd_int13probe.
>> It would walk past the end of the edd_params structure and corrupt the
>> return address on the stack.  I worked around it by padding edd_params.
>> I was planning to debug it further to find out which of the 3 things
>> that were updated caused the problem but Other Things(tm) came up.  See
>> if this works for you too:
>>
>> diff -r d35d326e437a -r e5228169f3f1 sys/boot/i386/common/edd.h
>> --- a/sys/boot/i386/common/edd.h        Tue Oct 30 21:51:09 2012 -0700
>> +++ b/sys/boot/i386/common/edd.h        Tue Oct 30 21:51:20 2012 -0700
>> _at__at_ -62,6 +62,7 _at__at_ struct edd_params {
>>          uint16_t        sector_size;
>>          uint16_t        edd_params_seg;
>>          uint16_t        edd_params_off;
>> +       char            pad[64];
>>   };
>
> Navdeep,
>
> I've committed a different antidote for this BIOS bug as r243025.
> Could you please that it works for you too?
>

Yes it works for me too, thanks Andriy!

Regards,
Navdeep