From: Andrew Morton <akpm@linux-foundation.org>
Date: Fri, 12 Sep 2008 00:02:58 +0000 (-0700)
Subject: lock debug: sit tight when we are already in a panic
X-Git-Tag: v2.6.29-rc1~572^2~4^4~11
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=53b9d87f41a3d8838210ad7cdef02d814817ce85;p=pandora-kernel.git

lock debug: sit tight when we are already in a panic

in:

  > http://bugzilla.kernel.org/show_bug.cgi?id=11543

The panic code called the kexec code which called mutex_trylock() which
called spin_lock_mutex() which then stupidly went and blurted a load of
debug stuff because of in_interrupt().

Keep the lock debug code from escallating an already crappy situation.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
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