Re: PROBLEM: Oops in __is_prefetch with 2.6.0-test9-bk4 at boottime with Athlon XP 1800+

From: Andi Kleen
Date: Sat Nov 01 2003 - 14:17:09 EST

On Sat, 1 Nov 2003 07:01:38 +0100 (MET)
<matze@xxxxxxxxxxx> wrote:

> Andi, it seems that you are the right person for this. It looks like my athlon
> dies in the __get_user call in __is_prefetch at boot up when bash is used as
> init process (look in [2.] for more details).
> Just ask for any additional information.

Does it go away when you apply the following patch?

I need your config, but the complete config (without the comments dropped)
and without the attachment converted to CR-LF line endings. I just spent several minutes
debugging the extremly cryptic error message from Kconfig you get for that.

Most likely something is reordering the exception table, breaking __get_user.


diff -u linux-test9bk4/include/linux/init.h-o linux-test9bk4/include/linux/init.h
--- linux-test9bk4/include/linux/init.h-o 2003-09-28 10:53:23.000000000 +0200
+++ linux-test9bk4/include/linux/init.h 2003-11-01 22:10:21.000000000 +0100
@@ -40,15 +40,15 @@

/* These are for everybody (although not all archs will actually
discard it in modules) */
-#define __init __attribute__ ((__section__ (".init.text")))
+#define __init
#define __initdata __attribute__ ((__section__ ("")))
#define __exitdata __attribute__ ((__section__("")))
-#define __exit_call __attribute_used__ __attribute__ ((__section__ (".exitcall.exit")))
+#define __exit_call

#ifdef MODULE
#define __exit __attribute__ ((__section__(".exit.text")))
-#define __exit __attribute_used__ __attribute__ ((__section__(".exit.text")))
+#define __exit

/* For assembly routines */

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