From: Rusty Russell <rusty@rustcorp.com.au>
Date: Tue, 21 Apr 2009 06:33:41 +0000 (+0930)
Subject: x86: avoid theoretical spurious NMI backtraces with CONFIG_CPUMASK_OFFSTACK=y
X-Git-Tag: v2.6.30-rc4~29^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fcc5c4a2feea3886dc058498b28508b2731720d5;p=pandora-kernel.git

x86: avoid theoretical spurious NMI backtraces with CONFIG_CPUMASK_OFFSTACK=y

In theory (though not shown in practice) alloc_cpumask_var() doesn't zero
memory, so CPUs might print an "NMI backtrace for cpu %d" once on boot.

(Bug introduced in fcef8576d8a64fc603e719c97d423f9f6d4e0e8b).

[ Impact: avoid theoretical syslog noise in rare configs ]

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <alpine.DEB.2.00.0904202113520.10097@gandalf.stny.rr.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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