From: Sascha Hauer <s.hauer@pengutronix.de>
To: "Eric Bénard" <eric@eukrea.com>
Cc: "barebox@lists.infradead.org" <barebox@lists.infradead.org>
Subject: Re: magicvar breaks tftp (or ramfs)
Date: Tue, 13 Dec 2011 20:26:06 +0100 [thread overview]
Message-ID: <20111213192606.GA27267@pengutronix.de> (raw)
In-Reply-To: <4EE76AC1.3070603@eukrea.com>
On Tue, Dec 13, 2011 at 04:09:53PM +0100, Eric Bénard wrote:
> Hi Sascha,
>
> Le 13/12/2011 10:48, Sascha Hauer a écrit :
> >Sometimes it helps to enable
> >
> >CONFIG_KALLSYMS
> >CONFIG_ARM_UNWIND
> >
> >to get a proper stack trace
> >
> Thanks for the hint I was not aware barebox also had these options.
>
> The culprit is show_progress :
> [<87f1c340>] (show_progress+0x14/0xf0) from [<87f1e590>] (tftp_send+0x194/0x1e4)
> [<87f1e590>] (tftp_send+0x194/0x1e4) from [<87f1e784>] (do_tftpb+0x1a4/0x2d0)
> [<87f1e784>] (do_tftpb+0x1a4/0x2d0) from [<87f065e0>] (execute_command+0x30/0x60)
> [<87f065e0>] (execute_command+0x30/0x60) from [<87f03d4c>]
> (run_list_real+0x7b4/0x894)
> [<87f03d4c>] (run_list_real+0x7b4/0x894) from [<87f03350>]
> (parse_stream_outer+0x104/0x1e4)
> [<87f03350>] (parse_stream_outer+0x104/0x1e4) from [<87f03ed8>]
> (run_shell+0x3c/0x5c)
> [<87f03ed8>] (run_shell+0x3c/0x5c) from [<87f07870>] (start_barebox+0xe0/0x11c)
> [<87f07870>] (start_barebox+0xe0/0x11c) from [<800011d8>] (0x800011d8)
>
> And I get the problem with
> arm-none-linux-gnueabi-gcc (Sourcery G++ Lite 2011.03-41) 4.5.2
> it works with :
> arm-none-linux-gnueabi-gcc (Sourcery G++ Lite 2010q1-202) 4.4.1
>
> So that seems to be a toolchain issue (adding some printf in
> show_progress make the problem disappear ...).
I really want to believe this, but I wouldn't be so sure. I think
it's more likely that you found a bug in barebox that your new
toolchain happens to trigger. Could you provide the objdump of
show_progress along with a complete stack trace including register
contents?
Sascha
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next prev parent reply other threads:[~2011-12-13 19:26 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-12 16:34 magicvar breaks tftp (or ramfs) Eric Bénard
2011-12-12 16:51 ` Eric Bénard
2011-12-12 21:16 ` Eric Bénard
2011-12-13 9:48 ` Sascha Hauer
2011-12-13 15:09 ` Eric Bénard
2011-12-13 19:26 ` Sascha Hauer [this message]
2012-05-29 8:48 ` Eric Bénard
2012-05-29 10:48 ` Eric Bénard
2012-05-29 16:23 ` Sascha Hauer
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