On Fri, 21 Dec 2007 11:06:49 -0500 "Miles Lane" <miles.lane@xxxxxxxxx> wrote:
> > >
> > > How do I determine what comes next?
> > >
> >
> > By comparing it with the /proc/iomem from prior to suspending the machine.
> >
>
> The offending information seems to be "90000000-90000fff : Intel Flush Page"
ah-hah. git-agpgart.patch
> I hope this helps,
It does, thanks.
Dave, a `cat /proc/iomem' crashes after a suspend/resume cycle when it
reaches the intel_private.ifp_resource record.
intel_i915_configure() is called on each resume and it calls
intel_i9xx_setup_flush() which zeroes out the already-registered `struct
resource', causing core kernel to oops over a deref of
parent/sibling/child.
Probably this:
--- a/drivers/char/agp/intel-agp.c~a
+++ a/drivers/char/agp/intel-agp.c
@@ -883,8 +883,6 @@ static void intel_i965_g33_setup_chipset
static void intel_i9xx_setup_flush(void)
{
/* setup a resource for this object */
- memset(&intel_private.ifp_resource, 0, sizeof(intel_private.ifp_resource));
-
intel_private.ifp_resource.name = "Intel Flush Page";
intel_private.ifp_resource.flags = IORESOURCE_MEM;
_
will be enough to prevent the crash, but I suspect a bit more than that
will be needed.
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