From: Paul Mackerras <paulus@samba.org>
To: Steffen Rumler <steffen.rumler.ext@nsn.com>
Cc: ext Wrobel Heinz-R39252 <r39252@freescale.com>,
Michael Ellerman <michael@ellerman.id.au>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>
Subject: Re: kernel panic during kernel module load (powerpc specific part)
Date: Mon, 4 Jun 2012 20:53:55 +1000 [thread overview]
Message-ID: <20120604105355.GA23189@pale.ozlabs.ibm.com> (raw)
In-Reply-To: <4FCC6705.1070604@nsn.com>
On Mon, Jun 04, 2012 at 09:43:01AM +0200, Steffen Rumler wrote:
> Let me summarize the situation:
>
> + According to Freescale, EABI assigns a dedicated function to register r11.
> + The ELF sections .text and .init.text may trigger the usage of the trampoline code.
> + The trampoline code must not user register r11, too.
> + We must not depend on addresses returned by vmalloc during kernel module loading.
>
> I think the bug must be fixed !!!
I agree. If you submit your patch with a nice description of the
problem and how the patch fixes it, along with your Signed-off-by,
I'll send it upstream.
Paul.
next prev parent reply other threads:[~2012-06-04 10:53 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-30 14:33 kernel panic during kernel module load (powerpc specific part) Steffen Rumler
2012-05-30 23:24 ` Michael Ellerman
2012-05-31 7:04 ` Wrobel Heinz-R39252
2012-05-31 11:04 ` Gabriel Paubert
2012-06-01 9:18 ` Benjamin Herrenschmidt
2012-06-01 11:33 ` Wrobel Heinz-R39252
2012-06-04 7:43 ` Steffen Rumler
2012-06-04 10:53 ` Paul Mackerras [this message]
2012-06-04 11:03 ` Gabriel Paubert
2012-06-04 22:00 ` Benjamin Herrenschmidt
2012-06-05 10:44 ` Gabriel Paubert
2012-06-05 22:47 ` Benjamin Herrenschmidt
2012-06-05 11:32 ` Gabriel Paubert
2012-06-05 22:14 ` Benjamin Herrenschmidt
2012-06-06 7:36 ` Steffen Rumler
2012-06-06 11:32 ` Benjamin Herrenschmidt
2012-06-06 14:37 ` [PATCH] " Steffen Rumler
2012-06-21 15:27 ` roger blofeld
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