On Fri, Sep 23, 2016 at 4:17 PM, Allan Jude <allanj...@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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