the sparc installer (and likely sparc64 installer) issue should be hacked around in -current, by not removing .eh_frame as previously posted. we can fix it properly later when we know why.
hopefully the sparc testbed will fix itself now. the sparc smp problem i have tracked down (and it is not a gcc 7 specific issue) and i don't yet understand what is going, but i have a very simple workaround for it as well. the problem happens in the new npf module. i saw this change in my lists fairly often and ignored it, but i finally managed to convince myself via bisect it was the problem. as a guess, i hacked npf_modctl() to return ENOTTY instead of calling npf_init(). this allowed my kernel to function fine. i then noticed npf_init() is static and only called once from npf_modctl(), and for some reason i tried compiling it with the static removed. this works. i've confirmed this result a few times because it is so surprising. as a test, i inlind the contents directly and the same problem occurs, so i suspect what ever is wrong happens when inlined. i'm still trying to understand the full asm for either version but i haven't yet figurd out what is wrong here. this is very confusing, and if a compiler bug, is not a new one. .mrg.
