Re: inode->i_wb_list corruption.

[Keith Packard]

<#part sign=pgpmime>
On Fri, 9 Mar 2012 13:00:15 -0500, Dave Jones <davej@xxxxxxxxxx> wrote:

> i915_drm_thaw is a deep nest of functions though, so this is going to be
> hard to track down where that write is coming from. Because the corruption
> seems to happen to pages that are already allocated, we probably can't
> even rely on DEBUG_PAGEALLOC, though it might be worth trying.

I'm worried that the write is coming through the GTT, which would make
sense as these look like pixel values. If this is on Ironlake (core
I3-I7 first gen), we know there are issues when VT-d is enabled, and
the work-around for that doesn't appear to be in place for the hibernate
resume case.

-- 
keith.packard@xxxxxxxxx
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/