Andriy Gapon wrote this message on Thu, Feb 21, 2013 at 10:19 +0200: > on 21/02/2013 01:16 Xin Li said the following: > > I think it's unlikely -- I have r247057 of sys/ which worked fine... > > > > userland 246957 works good by the way. > > Just a very wild guess - are you sure that it is the userland that is to blame? > It is rather unfortunate that we install boot blocks, including loader which > gets _really_ installed, as part of installworld (and they are built as part of > buildworld). So there is a possibility that it is loader that causes the > trouble. I would try to rule that out. As I posted in a different thread, apparently my gcc AES changes (r247012) manages to break a clang built kernel... I'm in the process of debugging right now... I did the usual: make buildworld && make buildkernel && make installkernel && shutdown -r now and the kernel hung... I then reverted r247012 and did the above again, and the machine is running again: FreeBSD carbon.funkthat.com 10.0-CURRENT FreeBSD 10.0-CURRENT #4 r247075M: Thu Feb 21 00:49:57 PST 2013 jmg_at_carbon.funkthat.com:/usr/obj/usr/src/sys/GENERIC amd64 And I haven't installworld yet... so somehow supporting the AES instructions in gcc causes the kernel to miscompile... I'm now going to diff the two kernels to find out what's different... -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."Received on Thu Feb 21 2013 - 15:55:33 UTC
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