Re: [PATCH 0/6] PowerPc 8xx TLB/MMU fixes

Benjamin Herrenschmidt [off-list ref] wrote on 05/10/2009 23:31:39:

quoted

Yes, every ld.so uses dcbX and icbi insn when relocatin code.

Even with -msecure-plt ?

hmm, maybe not. Can't remember now. But perhaps LAZY relocs still
need dcbX? Easiest is to check in uClibc. I impl. it, but was to long
time ago for me to remember. Scott are you using uClibc? I don't
think so because of the dynamic check of the cache line size

quoted

Maybe you see some version of the dcbX bug, but my fault.c should
fix them up. My bet would be the 32 byte cache line, it will miss
out every second line and so the results are unreliable.

Cheers,
Ben.