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Date: Wed, 16 Dec 2009 15:30:12 -0800
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Subject: Re: [Bugme-new] [Bug 14564] New: capture-example sleeping function
	called from invalid context at arch/x86/mm/fault.c
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--- ohci-mem.c.orig    2009-12-16 22:57:49.000000000 +0000
+++ ohci-mem.c    2009-12-16 22:49:37.000000000 +0000
@@ -103,8 +103,13 @@
 {
     struct td    **prev = &hc->td_hash [TD_HASH_FUNC (td->td_dma)];
 
-    while (*prev && *prev != td)
+    while (*prev && *prev != td) {
+        if ((unsigned long) *prev == 0xa7a7a7a7) {
+            ohci_info(hc, "poisoned hash at %p\n", prev);
+            return;
+        }
         prev = &(*prev)->td_hash;
+    }
     if (*prev)
         *prev = td->td_hash;
     else if ((td->hwINFO & cpu_to_hc32(hc, TD_DONE)) != 0)