From: Andrew Morton <akpm@linux-foundation.org>
Date: Wed, 21 Oct 2015 22:04:01 +0000 (+1100)
Subject: panic-release-stale-console-lock-to-always-get-the-logbuf-printed-out-fix
X-Git-Tag: KARO-TX6UL-2015-11-03~14^2~4
X-Git-Url: https://git.karo-electronics.de/?p=karo-tx-linux.git;a=commitdiff_plain;h=3067e2a0516640808363163eb051de8faa84cc75

panic-release-stale-console-lock-to-always-get-the-logbuf-printed-out-fix

tweak comment text

Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Seth Jennings <sjenning@redhat.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/kernel/panic.c b/kernel/panic.c
index f94525f601c9..4579dbb7ed87 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -149,10 +149,10 @@ void panic(const char *fmt, ...)
 	bust_spinlocks(0);
 
 	/*
-	 * We may have ended up killing the CPU holding the lock and still have
-	 * some valuable data in console buffer. Try to acquire the lock and
-	 * release it regardless of the result. The release will also print the
-	 * buffers out.
+	 * We may have ended up stopping the CPU holding the lock (in
+	 * smp_send_stop()) while still having some valuable data in the console
+	 * buffer.  Try to acquire the lock then release it regardless of the
+	 * result.  The release will also print the buffers out.
 	 */
 	console_trylock();
 	console_unlock();