svn commit: r305353 - in head/sys/boot: i386 i386/boot0 i386/boot2 i386/btx/btx i386/btx/btxldr i386/cdboot i386/gptboot i386/gptzfsboot i386/mbr i386/pmbr i386/pxeldr i386/zfsboot pc98 pc98/boot0 ...

Warner Losh imp at bsdimp.com
Sat Sep 24 20:56:07 UTC 2016


On Fri, Sep 23, 2016 at 4:17 PM, Allan Jude <allanjude at freebsd.org> wrote:
> On 09/03/16 11:26 AM, Warner Losh wrote:
>> Author: imp
>> Date: Sat Sep  3 15:26:28 2016
>> New Revision: 305353
>> URL: https://svnweb.freebsd.org/changeset/base/305353
>>
>> Log:
>>   Don't use -N to set the OMAGIC with data and text writeable and data
>>   not page aligned. To do this, use the ld script gnu ld installs on my
>>   system.
>>
>>   This is imperfect: LDFLAGS_BIN and LD_FLAGS_BIN describe different
>>   things. The loader script could be better named and take into account
>>   other architectures. And having two different mechanisms to do
>>   basically the same thing needs study. However, it's blocking forward
>>   progress on lld, so I'll work in parallel to sort these out.
>>
>>   Differential Revision: https://reviews.freebsd.org/D7409
>>   Reviewed by: emaste
>>
>
> This breaks booting on my Lenovo laptop. The BTX client crashes and
> dumps the registers.
>
> Reverting this commit solved it.
>
> Is there something I can do to help investigate this?

I assume you bisected all boot loader changes and it fails across this
commit? If not, that's the first step.

If so, perhaps the place to start is with the dump?

Warner


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