Patch: linux-2.5.8-pre1/kernel/exit.c change caused BUG() at boot time

From: "Adam J. Richter" <adam@yggdrasil.com>
To: torvalds@transmeta.com, haveblue@us.ibm.com,
	linux-kernel@vger.kernel.org
Subject: Patch: linux-2.5.8-pre1/kernel/exit.c change caused BUG() at boot time
Date: Thu, 4 Apr 2002 03:59:10 -0800	[thread overview]
Message-ID: <20020404035910.A281@baldur.yggdrasil.com> (raw)

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	When I attempted to boot linux-2.5.8-pre1, I got a kernel
BUG() for exit.c line 519.  The was a small change to to kernel/exit.c
in 2.5.8-pre1 which deleted a kernel_lock() call.  Restoring that line
resulted in a kernel that booted fine.  I am sending this email from
the machine running that kernel (so I guess a matching release of
the kernel lock is already in the code).

	Here is the patch.  Of course, it would be helpful if someone
who actually understands this could take a look at it.

-- 
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--- linux-2.5.8-pre1/kernel/exit.c	2002-04-03 23:38:32.000000000 -0800
+++ linux/kernel/exit.c	2002-04-04 03:52:18.000000000 -0800
@@ -499,6 +499,7 @@
 	acct_process(code);
 	__exit_mm(tsk);
 
+	lock_kernel();
 	sem_exit();
 	__exit_files(tsk);
 	__exit_fs(tsk);
