On Thu, 16 Sep 2004 00:14:11 +1000, Keith Owens wrote: >On Wed, 15 Sep 2004 00:56:15 -0700, >David Mosberger <davidm@napali.hpl.hp.com> wrote: >>>>>>> On Wed, 15 Sep 2004 17:16:47 +1000, Keith Owens <kaos@sgi.com> said: >> >> Keith> The use of 0xa.. for cpu 0 is causing an MCA when cpu 0 >> Keith> receives INIT. >> >>The MINSTATE_PHYS-version of MINSTATE_GET_CURRENT() looks broken to >>me. Perhaps changing "dep reg=0,reg,61,3" to a "tpa" is all that's >>needed there. Can someone check this out? I probably won't get to it >>today and will be on vacation starting tomorrow. > >Agreed that MINSTATE_PHYS is broken. Not sure that tpa is reliable >during INIT/MCA, especially as one of the possible causes of an MCA is >an invalid tlb. > >Can anybody describe why cpu 0 changed from 0xe... to 0xa... for the >idle task between 2.6.7-rc3 and 2.6.8? MINSTATE_END_SAVE_MIN_PHYS is also wrong? #define MINSTATE_END_SAVE_MIN_PHYS or r12=r12,r14; /* make sp a kernel virtual address */ or r13=r13,r14; /* make `current' a kernel virtual address */ ;; In the case of swapper on cpu0, it calculates wrong address. If address of swapper on cpu0 is a000000100634000, this macro sets r13 to e000000100634000. Regards, Takao Indoh - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.htmlReceived on Mon Sep 27 09:32:55 2004
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