On 06 Mar 2016, at 06:20, Larry Rosenman <ler_at_lerctr.org> wrote: > > On 2016-03-05 18:46, Dimitry Andric wrote: >> On 06 Mar 2016, at 00:30, Dimitry Andric <dim_at_FreeBSD.org> wrote: >>> On 05 Mar 2016, at 22:32, Dimitry Andric <dim_at_FreeBSD.org> wrote: >>>> I imported the (tentative) 3.8.0 release of clang, llvm, lldb and >>>> compiler-rt into head, in r296417. The upstream release is going to be >>>> very soon now, but I do not expect any changes anymore. >>>> This was tested with make universe, and a few exp-runs, but there is >>>> always a chance that you might run into something unexpected, either >>>> with the base system or ports. In such cases, please file bugs, and >>>> make sure you note somewhere in the description that it is related to >>>> this import. >>> Please hold off upgrading for now, if you are on amd64, and loading the >>> aesni.ko module. It appears that loading this module can cause the >>> kernel ELF linker to panic, but it is not yet clear why. This is being >>> tracked in PR207729 [1]. >> It should be safe again after r296419. Thanks to Kostik Belousov for >> the quick fix. (Clang 3.8.0 generates a different type for unwind >> sections on amd64, and this was unexpected in the kernel linker.) >> -Dimitry >> [1] https://svnweb.freebsd.org/changeset/base/296419 > I'm getting a crash at startup (mi_startup) with a clang 3.8.0 kernel. > > Picture at: > http://www.lerctr.org/~ler/FreeBSD/20160305_225532.jpg It's pretty hard to make out, but it looks like it is panic'ing in link_elf_reloc_local(). That should have been fixed with r296419, but maybe there is yet another edge case that wasn't fixed. Do you have a crash dump and/or a backtrace? Which modules are you preloading? -Dimitry
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