Panic when starting X with Intel KMS

[Konstantin Belousov]

On Mon, Jul 22, 2013 at 12:43:56PM +0200, Gustau P??rez i Querol wrote:
> >> As a blind shot, try to
> >> revert r252653.
> 
>     r252652 works OK. r252653 panics.

What if, instead of reverting r252653, apply the following:

diff --git a/sys/vm/vm_phys.c b/sys/vm/vm_phys.c
index 66f3b0c..78f07f7 100644
--- a/sys/vm/vm_phys.c
+++ b/sys/vm/vm_phys.c
@@ -547,6 +547,8 @@ vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end,
 	pi = atop(start);
 	if (pi >= first_page && atop(end) < vm_page_array_size) {
 		fp = &vm_page_array[pi - first_page];
+		for (i = 0; i < page_count; i++)
+			fp[i].flags = 0;
 		malloced = FALSE;
 	} else
 #endif

?
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