Show stopper bugs for 5.0

[Michael Lorenz <macallan%netbsd.org@localhost>]

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Hello,

here are a few problems I'd consider show stoppers, or rather which  
I'd like to see fixed before branching ( cc:ed to port-powerpc since  
most of this isn't really macppc-specific ):
- - Xorg vs. rtld.c - someone with more compiler clue than me needs to  
look at this. We should have at least one working Xserver for 5.0. If  
we can't fix Xorg we should either fix jemalloc to play nicely with  
XFree86, revert to the old malloc or fix XFree86's module loader to  
deal with it.
- - low memory corruption under heavy MP load. Appears to be a race and  
it doesn't seem to happen with LOCKDEBUG.
- - at least on my 2x 7400 I need additional cache flushes in ld.so,  
otherwise the CPU occasionally tries to use reloc entries not yet  
written into memory which leads to userland crashes. Doesn't seem to  
happen with 745x CPUs, others with 7400s have reported the same  
problem. I'll check if it still happens, if it does we'll need to  
think about a proper solution here.

Anything I forgot?

have fun
Michael

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