linux-kernel - Re: [PATCH 2.6.18-rc4 00/10] Kernel memory leak detector 0.9

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Message-ID: <b0943d9e0608190307v5853f38dja21ad65e2c67840c@mail.gmail.com>
Date:	Sat, 19 Aug 2006 11:07:04 +0100
From:	"Catalin Marinas" <catalin.marinas@...il.com>
To:	"Michal Piotrowski" <michal.k.k.piotrowski@...il.com>,
	"Antonino A. Daplas" <adaplas@....net>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2.6.18-rc4 00/10] Kernel memory leak detector 0.9

On 18/08/06, Michal Piotrowski <michal.k.k.piotrowski@...il.com> wrote:
> I just added your "Fix memory leak in vc_resize/vc_allocate" patch to
> my series file.
>
> orphan pointer 0xc6110000 (size 12288):
>   c017480e: <__kmalloc>
>   c024dda4: <vc_resize>
>   c020ed9c: <fbcon_startup>
>   c0251028: <register_con_driver>
>   c02511e0: <take_over_console>
>   c020e21e: <fbcon_takeover>
>   c0212b08: <fbcon_fb_registered>
>   c0212ce1: <fbcon_event_notify>
> orphan pointer 0xf55b0000 (size 8208):
>   c017480e: <__kmalloc>
>   c0211bb8: <fbcon_set_font>
>   c0251b17: <con_font_set>
>   c0251c7b: <con_font_op>
>   c0249a97: <vt_ioctl>
>   c024432e: <tty_ioctl>
>   c0189fd1: <do_ioctl>
>   c018a269: <vfs_ioctl>

The second one is probably a false positive as the stored pointer is
different from the one returned by kmalloc (there is some padding).
I'll add it to the kmemleak-false-positives patch.

The first one might be a real leak. Anotonino, any idea about this?

Thanks.

-- 
Catalin
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