William Lee Irwin III wrote on Friday, August 06, 2004 2:08 PM >> update_mmu_cache() does not appear to check the size of the translation >> to be established in many architectures. e.g. on arch/ia64/ it does >> flush_icache_range(addr, addr + PAGE_SIZE) unconditionally, and only >> sets PG_arch_1 on a single struct page. Similar comments apply to >> sparc64 and ppc64; I didn't check any others. On Mon, Aug 09, 2004 at 11:19:04AM -0700, Chen, Kenneth W wrote: > I suppose this is fixable in update_mmu_cache() where it can check the > type of pte and do appropriate sizing and other things. ia64 would have > to check the address instead of looking at the pte. Yes, it's just a fair amount of document-hunting since there isn't always easily cut-and-pasteable stuff (e.g. ITAG_MASK for larger page sizes was omitted from the #ifdefs on sparc64). As for ia64 checking addresses... ew, can't we just use long format VHPT? The virtual placement constraints are nasty. -- wli - 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 Aug 9 15:32:22 2004
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