From: Randy Dunlap <rdunlap@xenotime.net>
To: Luca Tettamanti <kronos.it@gmail.com>
Cc: Marcel Holtmann <marcel@holtmann.org>, linux-kernel@vger.kernel.org
Subject: Re: [BUG?] inquiry_cache_read: stack size
Date: Mon, 08 Mar 2010 15:55:25 -0800 [thread overview]
Message-ID: <4B958E6D.70006@xenotime.net> (raw)
In-Reply-To: <20100308223759.GA27590@nb-core2.darkstar.lan>
On 03/08/10 14:38, Luca Tettamanti wrote:
> Hi Marcel,
> I'm compiling current -git kernel and noticed this warning:
>
> net/bluetooth/hci_sysfs.c: In function 'inquiry_cache_read':
> net/bluetooth/hci_sysfs.c:441: warning: the frame size of 4208 bytes is larger than 2048 bytes
>
> which is caused by:
>
> commit ca325f698996c1a0770a67f41e7dc97a007d8bc2
> Author: Marcel Holtmann <marcel@holtmann.org>
> Date: Mon Feb 8 16:22:31 2010 +0100
>
> Bluetooth: Convert inquiry cache to use debugfs instead of sysfs
>
> The output of the inquiry cache is only useful for debugging
> purposes and so move it into debugfs.
>
> This buffer on the stack:
>
> char buf[4096];
>
> is likelly to cause troubles, since the kernel space stack is limited to
> 8K or even 4K (4KSTACKS).
Patch was on netdev mailing list on TUE Mar. 2, 2010.
Please see http://www.spinics.net/lists/netdev/msg122906.html
--
~Randy
prev parent reply other threads:[~2010-03-08 23:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-08 22:38 [BUG?] inquiry_cache_read: stack size Luca Tettamanti
2010-03-08 23:55 ` Randy Dunlap [this message]
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