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Re: firefox + flash exit -> ddb

In Message <>,
   Martin Husemann <>wrote:

=>On Mon, Jan 02, 2012 at 01:14:50AM +0100, Thomas Klausner wrote:
=>> I've just reproduced this bug with my 5.99.58 kernel.
=>> It doesn't happen everytime, but when firefox runs for a longer time,
=>> the chances are pretty good. Visiting a flash site is not a guarantee for
=>> the bug.
=>I have seen it (on amd64, current as of a few days ago) once, without any
=>flash or other plugins involved.
=>Unfortunately I didn't get a crash dump.

   I get screen mangling and a hard lock instead, but I get it under
similar circumstances. This stabilizes things for me, so it may be
worth a shot.

Index: sys/arch/amd64/include/types.h
RCS file: /usr2/netbsd-cvs/src/sys/arch/amd64/include/types.h,v
retrieving revision 1.40
diff -u -r1.40 types.h
--- sys/arch/amd64/include/types.h      4 Dec 2011 16:24:13 -0000       1.40
+++ sys/arch/amd64/include/types.h      2 Jan 2012 13:54:18 -0000
@@ -95,7 +95,7 @@
 #define        __HAVE_RAS
 #include "opt_xen.h"
-#if defined(__x86_64__) && !defined(XEN)
+#if defined(__x86_64__) && !defined(XEN) && 0
 #define        __HAVE_DIRECT_MAP 1
 #define        __HAVE_MM_MD_DIRECT_MAPPED_IO

   Good luck.

                                        Gary Duzan

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