[Openchrome-devel] PCI bus corruption?

[Yuval Hager]

On Wednesday 26 November 2008, Peter Stuge wrote:
> My question is if there are a few strategic places in openchrome
> where MMIO accesses could be logged and/or validated to actually be
> within the device's MMIO range, to find a starting point for further
> debugging of this problem?

I've narrowed this down to:

Index: src/via_lvds.c
===================================================================
--- src/via_lvds.c	(revision 686)
+++ src/via_lvds.c	(working copy)
@@ -86,7 +86,10 @@ ViaLVDSDFPPower(ScrnInfoPtr pScrn, Bool on)
 
     if (on) {
         /* Turn DFP High/Low pad on. */
+        DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "YH: ViaLVDSDFPPower NOT 
WRITING!\n"));
+	/*
         hwp->writeSeq(hwp, 0x2A, hwp->readSeq(hwp, 0x2A) | 0x0F);
+	*/
     } else {
         /* Turn DFP High/Low pad off. */
         hwp->writeSeq(hwp, 0x2A, hwp->readSeq(hwp, 0x2A) & 0x0F);


With this patch applied, I cannot recreate the problem.

When I logout (X shutdown?) the whole system hangs, but I am not sure this is 
a result of this change - it might have been the X.org upgrade.

--yuval
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