linux-kernel - Re: linux-next: Tree for June 3

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Message-ID: <AANLkTim6v2s-Q5BndAKLOZKaA1wYgbU3UKJwNy-6Jkki@mail.gmail.com>
Date:	Thu, 3 Jun 2010 16:00:09 +0800
From:	Dave Young <hidave.darkstar@...il.com>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	Rusty Russell <rusty@...tcorp.com.au>
Subject: Re: linux-next: Tree for June 3

On Thu, Jun 3, 2010 at 3:39 PM, Dave Young <hidave.darkstar@...il.com> wrote:
> On Thu, Jun 3, 2010 at 11:47 AM, Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>> Hi all,
>>
>> Changes since 20100602:
>>
>> My fixes tree contains:
>>      v4l-dvb: update gfp/slab.h includes
>>      arm: update gfp/slab.h includes
>>      davinci: update gfp/slab.h includes
>>      ocfs2: update gfp/slab.h includes
>>      acpi: update gfp/slab.h includes
>>
>> The sh tree lost its build failure.
>>
>> The rr tree lost its build failure.
>>
>> ----------------------------------------------------------------------------
>>
>> I have created today's linux-next tree at
>> git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
>> (patches at http://www.kernel.org/pub/linux/kernel/v2.6/next/ ).  If you
>> are tracking the linux-next tree using git, you should not use "git pull"
>> to do so as that will try to merge the new linux-next release with the
>> old one.  You should use "git fetch" as mentioned in the FAQ on the wiki
>> (see below).
>>
>
> Hi,
>
> With this build, I got weird module refcount:
>
> bash-3.1$ cat /proc/modules
> radeon 703776 4294967295 - Live 0xffffffffa017c000
> ttm 55891 0 radeon, Live 0xffffffffa0164000
> drm_kms_helper 25154 0 radeon, Live 0xffffffffa015b000
> drm 174333 2 radeon,ttm,drm_kms_helper, Live 0xffffffffa011f000
> fb 45136 1 radeon,drm_kms_helper, Live 0xffffffffa00ff000
> fbdev 861 0 fb, Live 0xffffffffa009e000
> i2c_algo_bit 4925 0 radeon, Live 0xffffffffa0069000
> cfbcopyarea 3229 0 radeon, Live 0xffffffffa0059000
> cfbimgblt 2138 0 radeon, Live 0xffffffffa002c000
> cfbfillrect 3241 0 radeon, Live 0xffffffffa0026000
> tun 13180 2 - Live 0xffffffffa0039000
> kvm_intel 42801 4294967295 - Live 0xffffffffa0112000
> kvm 250629 0 kvm_intel, Live 0xffffffffa00bf000
> dell_wmi 2939 4294967295 - Live 0xffffffffa000e000
> snd_hda_codec_analog 72342 0 - Live 0xffffffffa00ab000
> wmi 7636 0 dell_wmi, Live 0xffffffffa0004000
> e1000e 186408 4294967295 - Live 0xffffffffa006e000
> snd_hda_intel 22245 4294967295 - Live 0xffffffffa0061000
> snd_hda_codec 69600 1 snd_hda_codec_analog,snd_hda_intel, Live 0xffffffffa004600
> 0
> snd_hwdep 5914 0 snd_hda_codec, Live 0xffffffffa003e000
> 8139too 31275 4294967295 - Live 0xffffffffa002f000
> snd_pcm 70720 1 snd_hda_intel,snd_hda_codec, Live 0xffffffffa0012000
> snd_timer 18357 0 snd_pcm, Live 0xffffffffa0007000
> snd_page_alloc 7365 1 snd_hda_intel,snd_pcm, Live 0xffffffffa0000000
>
> As you can see, some refcount become negtive

Seems for some module drop reference of 0 in following code of init_module:

       /* Drop initial reference. */
        module_put(mod);

> --
> Regards
> dave
>



-- 
Regards
dave
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