linux-kernel - Re: EIP Errors kernel 2.6.18 .AND hard lockup ...

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Message-ID: <451965E5.1080600@versaccounting.com>
Date:	Tue, 26 Sep 2006 12:39:49 -0500
From:	Ben Duncan <ben@...saccounting.com>
To:	linux-kernel@...r.kernel.org
Subject: Re: EIP Errors kernel 2.6.18 .AND hard lockup ...

Ok, first IANAKP (I am not a kernel programmer ) ;-> ...
But, just got another hard lockup and EIP code ...

I am not sure why this should got to nVidia (Please, I
personally know the Head of nVidias' Linux driver development,
so if it is a nVidia problem, I can help there).

Anway,

EIP shows :

desktop kernel: CPU:    0
desktop kernel: EIP:    0060:[<c01ba714>]    Tainted: P      VLI
EFLAGS: 00010046   (2.6.18 #1)
desktop kernel: EIP is at radix_tree_tag_set+0x6a/0xa2
desktop kernel: eax: 00000001   ebx: 00000001   ecx: 00000001   edx: 00000001
desktop kernel: esi: 00000000   edi: 00000000   ebp: f7cf3d70   esp: f7cf3d54
desktop kernel: ds: 007b   es: 007b   ss: 0068
desktop kernel: Process pdflush (pid: 181, ti=f7cf2000 task=f7cd6a90 task.ti=f7cf2000)
desktop kernel: Stack: 00000001 00000001 00050001 f71a2f4c c1061be0 f71a2f48 00000000 
f7cf3d88c01ba3cc t radix_tree_node_alloc
c01ba416 T radix_tree_preload
c01ba475 t radix_tree_extend
c01ba4ff T radix_tree_insert
c01ba5fc T radix_tree_lookup_slot
c01ba651 T radix_tree_lookup
c01ba6aa T radix_tree_tag_set
c01ba74c T radix_tree_tag_clear
c01ba81a t __lookup
c01ba906 T radix_tree_gang_lookup

desktop kernel:        c013579e 00000286 f57d5f68 c1061be0 00050002 f7cf3db8 c014ccc8 00000000
desktop kernel:        00001000 f57d5f68 000773b0 00000000 c0150760 f71a2e70 00000000 c1061be0

With current system map showing:

c01ba3cc t radix_tree_node_alloc
c01ba416 T radix_tree_preload
c01ba475 t radix_tree_extend
c01ba4ff T radix_tree_insert
c01ba5fc T radix_tree_lookup_slot
c01ba651 T radix_tree_lookup
c01ba6aa T radix_tree_tag_set
c01ba74c T radix_tree_tag_clear
c01ba81a t __lookup
c01ba906 T radix_tree_gang_lookup

The "radix lookup" seems to be occuring inside of the radix_tree_tag_set
and in particular the pdflush routine.

fgrep'ing kernel shows this is in the lib/radix-tree routine ..

To me seems to be a PDFLUSH eip and the nvidia stuff is just
a by product of loaded modules, no?

Thnaks ..

Michal Piotrowski wrote:
> Hi,
> 
<SNIP>
> 
> "When emailing linux-bugs@...dia.com, please attach an
> nvidia-bug-report.log, which is generated by running
> "nvidia-bug-report.sh". "
> http://www.nvidia.com/object/linux_display_ia32_1.0-8774.html
> 
> Please send this report to Nvidia.
> 
> Regards,
> Michal
> 

-- 
Ben Duncan   - Business Network Solutions, Inc. 336 Elton Road  Jackson MS, 39212
"Never attribute to malice, that which can be adequately explained by stupidity"
        - Hanlon's Razor

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