On 07/31/2012 08:46 AM, Mel Gorman wrote:
On Mon, Jul 30, 2012 at 03:11:27PM -0400, Larry Woodman wrote:
<SNIP>
That is a surprise. Can you try your test case on 3.4 and tell us if the
patch fixes the problem there? I would like to rule out the possibility
that the locking rules are slightly different in RHEL. If it hits on 3.4
then it's also possible you are seeing a different bug, more on this later.
Sorry for the delay Mel, here is the BUG() traceback from the 3.4
kernel with your
patches:
--------------------------------------------------------------------------------------------------------------------------------------------
[ 1106.156569] ------------[ cut here ]------------
[ 1106.161731] kernel BUG at mm/filemap.c:135!
[ 1106.166395] invalid opcode: 0000 [#1] SMP
[ 1106.170975] CPU 22
[ 1106.173115] Modules linked in: bridge stp llc sunrpc binfmt_misc
dcdbas microcode pcspkr acpi_pad acpi]
[ 1106.201770]
Thanks, looks very similar.
[ 1106.203426] Pid: 18001, comm: mpitest Tainted: G W
3.3.0+ #4 Dell Inc. PowerEdge R620/07NDJ2
You say this was a 3.4 kernel but the message says 3.3. Probably not
relevant, just interesting.
Oh, sorry I posted the wrong traceback. I tested both 3.3 & 3.4 and had
the same results.
I'll do it again and post the 3.4 traceback for you,
Larry
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