Return-Path: <linux-kernel-owner+willy=40w.ods.org-S1751227AbWBAIaP@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1751227AbWBAIaP (ORCPT <rfc822;willy@w.ods.org>);
	Wed, 1 Feb 2006 03:30:15 -0500
Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751238AbWBAIaP
	(ORCPT <rfc822;linux-kernel-outgoing>);
	Wed, 1 Feb 2006 03:30:15 -0500
Received: from smtp203.mail.sc5.yahoo.com ([216.136.129.93]:63387 "HELO
	smtp203.mail.sc5.yahoo.com") by vger.kernel.org with SMTP
	id S1751227AbWBAIaN (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
	Wed, 1 Feb 2006 03:30:13 -0500
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
  s=s1024; d=yahoo.com.au;
  h=Received:Message-ID:Date:From:User-Agent:X-Accept-Language:MIME-Version:To:CC:Subject:References:In-Reply-To:Content-Type:Content-Transfer-Encoding;
  b=F2z3qxr/v0QDvZomWD2oZnq70Vr3I6gQAI/x9RfThGNWKCiWbb6lBOxXbyB+pZCF7dcmkE522Xqdfn9Phszm9lfu/UbZ/SUmehuLAMTURaAyJ/ACu9/lRB/oVvbYaBA8EFxX0BTV6DgzOi4vGXMJnpVODYxppJYYrDCR25rFsCI=  ;
Message-ID: <43E0718F.1020604@yahoo.com.au>
Date: Wed, 01 Feb 2006 19:30:07 +1100
From: Nick Piggin <nickpiggin@yahoo.com.au>
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20051007 Debian/1.7.12-1
X-Accept-Language: en
MIME-Version: 1.0
To: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
CC: Andrew Morton <akpm@osdl.org>, linux-kernel@vger.kernel.org
Subject: Re: 2.6.16-rc1-mm3
References: <20060124232406.50abccd1.akpm@osdl.org>	 <6bffcb0e0601250340x6ca48af0w@mail.gmail.com>	 <43D7A047.3070004@yahoo.com.au>	 <6bffcb0e0601261102j7e0a5d5av@mail.gmail.com>	 <43D92754.4090007@yahoo.com.au> <43D927F6.9080807@yahoo.com.au> <6bffcb0e0601270211v787f91d2r@mail.gmail.com>
In-Reply-To: <6bffcb0e0601270211v787f91d2r@mail.gmail.com>
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
X-Mailing-List: linux-kernel@vger.kernel.org
Content-Length: 3236
Lines: 96

Michal Piotrowski wrote:
> Hi,
> 
> On 26/01/06, Nick Piggin <nickpiggin@yahoo.com.au> wrote:
> 
>>Nick Piggin wrote:
>>Sorry, wrong patch.
>>
>>Note the warnings you are seeing should not result in memory
>>corruption, but will result in the given hugepage leaking.
>>
>>--
>>SUSE Labs, Novell Inc.
>>
>>
>>Index: linux-2.6/include/linux/mm.h
>>===================================================================
>>--- linux-2.6.orig/include/linux/mm.h
>>+++ linux-2.6/include/linux/mm.h
>>@@ -294,6 +294,8 @@ struct page {
>>  */
>> static inline int put_page_testzero(struct page *page)
>> {
>>+       if (unlikely(PageCompound(page)))
>>+               page = (struct page *)page_private(page);
>>        BUG_ON(atomic_read(&page->_count) == 0);
>>        return atomic_dec_and_test(&page->_count);
>> }
>>
>>
>>
> 
> 
> Now I have got this:
> 
> BUG: unable to handle kernel paging request at virtual address eaa34b3c
>  printing eip:
> b0161cdd
> *pde = 0048a067
> *pte = 3aa34000
> Oops: 0000 [#1]
> PREEMPT SMP DEBUG_PAGEALLOC
> last sysfs file: /devices/pci0000:00/0000:00:1d.1/usb3/idVendor
> Modules linked in: snd_intel8x0 snd_ac97_codec snd_ac97_bus
> snd_pcm_oss snd_mixer_oss snd_pcm snd_timer ide_cd cdrom intel_agp
> agpgart snd i2c_i801 hw_random soundcore snd_page_alloc unix
> CPU:    0
> EIP:    0060:[<b0161cdd>]    Not tainted VLI
> EFLAGS: 00010282   (2.6.16-rc1-mm3 #4)
> EIP is at do_path_lookup+0x22b/0x259
> eax: eaa34b20   ebx: eb328000   ecx: 00000000   edx: eb328f4c
> esi: ffffff9c   edi: fffffffe   ebp: eb328f24   esp: eb328f0c
> ds: 007b   es: 007b   ss: 0068
> Process udevd (pid: 731, threadinfo=eb328000 task=eb30ca80)
> Stack: <0>00000000 eb5cb000 b015fab1 eb5cb000 eb5cb000 00000000
> eb328f40 b01621f3
>        eb328f4c ffffff9c afbf6dec afbf6dec 00000100 eb328f9c b015bf69 eb328f4c
>        eaa34b20 b23d5f28 00000000 eb329003 b015f8ce 00000000 00000001 00000000
> Call Trace:
>  [<b0103917>] show_stack_log_lvl+0xaa/0xb5
>  [<b0103a54>] show_registers+0x132/0x19d
>  [<b0103d91>] die+0x171/0x1fb
>  [<b02ab110>] do_page_fault+0x3be/0x568
>  [<b010343f>] error_code+0x4f/0x54
>  [<b01621f3>] __user_walk_fd+0x2d/0x41
>  [<b015bf69>] sys_readlinkat+0x26/0x93
>  [<b015bfe9>] sys_readlink+0x13/0x15
>  [<b01028bf>] sysenter_past_esp+0x54/0x75
> Code: 00 83 c0 04 e8 9a 82 14 00 8b 03 c7 80 e4 01 00 00 00 00 00 00
> 8b 55 08 8b 45 ec e8 55 fa ff ff 89 c7 8b 55 08 8b 02 85 c0 74 24 <8b>
> 50 1c 85 d2 74 1d b8 00 f0 ff ff 21 e0 8b 00 83 b8 d4 04 00
>  <6>ACPI: PCI Interrupt 0000:02:05.0[A] -> GSI 22 (level, low) -> IRQ 21
> 
> Here is dmesg:
> http://www.stardust.webpages.pl/files/mm/2.6.16-rc1-mm3/mm-dmesg2
> 
> Here is config
> http://www.stardust.webpages.pl/files/mm/2.6.16-rc1-mm3/mm-config
> 
> Regards,
> Michal Piotrowski
> 

Thanks for testing Michal. Andrew this one looks unrelated -
have you seen anything similar? Any ideas?

Nick

-- 
SUSE Labs, Novell Inc.
Send instant messages to your online friends http://au.messenger.yahoo.com 
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/