linux-kernel - Re: possible memory leak on i915_gem_create

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Message-Id: <1247581700.28240.106.camel@pc1117.cambridge.arm.com>
Date:	Tue, 14 Jul 2009 15:28:20 +0100
From:	Catalin Marinas <catalin.marinas@....com>
To:	Alexey Fisher <bug-track@...her-privat.net>
Cc:	"kernel-testers-owner@...r.kernel.org" 
	<kernel-testers-owner@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"intel-gfx@...ts.freedesktop.org" <intel-gfx@...ts.freedesktop.org>
Subject: Re: possible memory leak on i915_gem_create_ioctl

On Tue, 2009-07-14 at 16:18 +0200, Alexey Fisher wrote:
> kmemleak report a lot of possible memory leaks if using any glxrelated 
> applications like glxgears, glxinfo, compiz, cairo-dock with g45 graphic.
> 
> Here is a trace from /sys/kernel/debug/kmemleak:
> 
> unreferenced object 0xffff8800b298e000 (size 544):
>    comm "openarena", pid 5002, jiffies 4296480664
>    backtrace:
>      [<ffffffff814ac755>] kmemleak_alloc+0x25/0x60
>      [<ffffffff810f4b8b>] kmem_cache_alloc+0xfb/0x180
>      [<ffffffff8122404f>] idr_pre_get+0x5f/0x90
>      [<ffffffff812c6fed>] drm_gem_handle_create+0x2d/0xa0
>      [<ffffffff812e0d60>] i915_gem_create_ioctl+0x60/0xc0
>      [<ffffffff812c5c74>] drm_ioctl+0x184/0x3b0
>      [<ffffffff8110c6dc>] vfs_ioctl+0x7c/0xa0
>      [<ffffffff8110cbaa>] do_vfs_ioctl+0x8a/0x5a0
>      [<ffffffff8110d141>] sys_ioctl+0x81/0xa0
>      [<ffffffff8100b66b>] system_call_fastpath+0x16/0x1b
>      [<ffffffffffffffff>] 0xffffffffffffffff

I already reported these - http://lkml.org/lkml/2009/7/9/110.

They look like real leaks but someone who understands the code better
would need to look at them.

-- 
Catalin

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