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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [IVB/HSW ULT]system hang when run nightly testing"
href="https://bugs.freedesktop.org/show_bug.cgi?id=68171#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [IVB/HSW ULT]system hang when run nightly testing"
href="https://bugs.freedesktop.org/show_bug.cgi?id=68171">bug 68171</a>
from <span class="vcard"><a class="email" href="mailto:ben@bwidawsk.net" title="Ben Widawsky <ben@bwidawsk.net>"> <span class="fn">Ben Widawsky</span></a>
</span></b>
<pre>I dug a bit. It looks to me the failure is that pages is null here:
if (!obj->has_dma_mapping)
dma_unmap_sg(&dev->pdev->dev,
obj->pages->sgl, obj->pages->nents,
PCI_DMA_BIDIRECTIONAL);
My disasm is a bit too complex to make sense out of at this hour.</pre>
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