On Thu, 2007-09-27 at 20:22 +0900, Ishizaki Kou wrote: > Ben-san, > > > On Thu, 2007-09-27 at 17:01 +0900, [EMAIL PROTECTED] wrote: > > > > > Celleb does not set get_paca()->kstack properly (I don't know which > > > function should set it up), so we need to workaround. > > > > paca->kstack is set in asm (via the PACAKSAVE macro), from either > > __secondary_start for non-boot CPUs or from start_here_common for the > > boot CPU. > > > > slb_flush_and_rebolt() should not be called before that happens. > > > > How do you end up with kstack set to 0 ? > > I found r13 is not set before entering start_here_common for boot cpu. > For non-boot threads, __secondary_start will set r13 properly. > > So the problem is to set r13 correct PACA address before entering > start_here_common. Should it set before entering kernel or will some > patch make sense?
That is scary... we seem to have lost an mfsprg r13,SPRN_SPRG3 somewhere along the way, I'm surprised things boot at all, or maybe I'm missing something here... Paul ? Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
