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Date: Tue, 13 Jan 2009 01:19:09 +0200 From: pageexec@...email.hu To: Suresh Siddha <suresh.b.siddha@...el.com>, Ingo Molnar <mingo@...e.hu> CC: hpa@...or.com, tglx@...utronix.de, linux-kernel@...r.kernel.org, venkatesh.pallipadi@...el.com, Daniel.Beschorner@...ton.com, stable@...nel.org Subject: Re: [patch] x86: fix PTE corruption issue while mapping RAM using /dev/mem On 13 Jan 2009 at 0:51, Ingo Molnar wrote: > applied to tip/x86/urgent, thanks Suresh! > > note that the patch caused some conflicts (there were other changes in > pat.c) - i merged it up manually but could you please check the final > commit in tip/master whether it's all OK? i don't think that it got applied properly: diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c index 85cbd3c..ea36ed7 100644 --- a/arch/x86/mm/pat.c +++ b/arch/x86/mm/pat.c @@ -347,9 +347,6 @@ int reserve_memtype(u64 start, u64 end, unsigned long req_type, new->end = end; new->type = actual_type; - if (new_type) - *new_type = actual_type; - spin_lock(&memtype_lock); if (cached_entry && start >= cached_start) @@ -437,6 +434,9 @@ int free_memtype(u64 start, u64 end) if (is_ISA_range(start, end - 1)) return 0; + if (new_type) + *new_type = actual_type; + is_range_ram = pagerange_is_ram(start, end); if (is_range_ram == 1) return free_ram_pages_type(start, end); free_memtype doesn't even have a new_type argument for starters ;), patch must have applied it at the wrong place... -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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