2004-11-17 21:25:10

by Christian Axelsson

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Subject: [2.6.10-rc2-mm1] OOPS on boot (hotplug related?)

Hi!
Im getting OOPSes on boot on my laptop. Output is copied by hand and Ive
only included the parts that I *think* are useful:

VFS: Mounted root (reiser4 filesystem) readonly.
Freeing unused kernel memory: 176k freed
Unable to handle kernel NULL pointer dereference at virtual address 0000003c
printing eip:
c01ea243
*pde = 00000000
Oops: 0000 [#1]
PREEMPT
Modules linked in:
CPU: 0
EIP: 0060:[<c01ea243>] Not tainted VLI
EFLAGS: 00010286 (2.6.10-rc2-mm1)
EIP is at get_nonexclusive_access+0x13/0x40
eax: 00000000 ebx: dfbce730 ecx: 00000000 edx: dfbce6d8
esi: dfbce700 edi: dfbe44ec ebp: dfbce6d8 esp: dfbf1c10
ds: 007b es: 007b ss: 0068
Process hotplug (pid: 966, threadinfo=dfbf0000 task=dfbcba80)
Stack: c01e8f1f dfbce6d8 00000000 c01e8ee0 dfbe7360 00000000 dfbe44ec
c014a547 dfbe44ec 080d8000 dfbf1c58 c0112d4d dfbd3080 dfbd2dc0
00000000 dfbce7d0 00000001 dfbd3080 080d84d4 00000001 c014a9f0
Call Trace:
[<c01e8f1f>] unix_file_filemap_nopage+0x3f/0x90
[<c01e8ee0>] unix_file_filemap_nopage+0x0/0x90
[<c014a547>] do_no_page+0xc7/0x360
[<c0112d4d>] pte_alloc_one+0x1d/0x50
[<c014a9f0>] handle_mm_fault+0xf0/0x1a0
[<c013bba2>] generic_file_mmap+3ec/0x60e
[<c011356c>] do_page_fault+0x3ec/0x60e

<snipped>

Code: 00 0f c1 10 0f 85 14 12 00 00 c3 8d b6 00 00 00 00 8d bc 27 00 00
00 00 b8 00 e0 ff ff 8b 54 24 04 21 e0 8b 00 8b 80 b8 04 00 <8b> 40 3c
8b 48 08 85 c9 75 0b 89 d0 ff 00 0f 88 f3 11 00 00 c3

This one is followed by two similar (probably identical) OOPSes and then
it panics.
Im using latest hotplug. Config attached.

--
Regards,
Christian


Attachments:
config.gz (7.30 kB)

2004-11-17 22:52:47

by Andrew Morton

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Subject: Re: [2.6.10-rc2-mm1] OOPS on boot (hotplug related?)

Christian Axelsson <[email protected]> wrote:
>
> I'm getting OOPSes on boot on my laptop. Output is copied by hand and Ive
> only included the parts that I *think* are useful:
>
> ...
> EIP is at get_nonexclusive_access+0x13/0x40

Yup, seems that reiser4 broke. I've forwarded a copy of an earlier report
to [email protected].

2004-11-17 23:05:54

by Hanno Meyer-Thurow

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Subject: Re: [2.6.10-rc2-mm1] OOPS on boot (hotplug related?)

Hi Christian Axelsson,

I get that hotplug oops on 2.6.10-rc2-bk1/2 but not on 2.6.10-rc2. so that bug must be in latest bk1 patchset. For anyone interested in bugfixing see my foto at:

http://geki.ath.cx/hotplug-oops.jpg

2004-11-17 23:08:44

by Hanno Meyer-Thurow

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Subject: Re: [2.6.10-rc2-mm1] OOPS on boot (hotplug related?)

Oups, just seen Andrew's answer - i took reiser4 from rc2-mm1 ^^ sorry for noise...

2004-11-18 01:15:23

by Mathieu

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Subject: Re: [2.6.10-rc2-mm1] OOPS on boot (hotplug related?)

Andrew Morton <[email protected]> disait derni?rement que :

> Christian Axelsson <[email protected]> wrote:
>>
>> I'm getting OOPSes on boot on my laptop. Output is copied by hand and Ive
>> only included the parts that I *think* are useful:
>>
>> ...
>> EIP is at get_nonexclusive_access+0x13/0x40
>
> Yup, seems that reiser4 broke. I've forwarded a copy of an earlier report
> to [email protected].

V. Saveliev provided the right fix shortly after I reported this oops.

I attach the patch

Regards,


Attachments:
reiser4-context-fix.patch (994.00 B)
(No filename) (131.00 B)
Download all attachments

2004-11-18 03:02:29

by Mathieu

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Subject: Re: [2.6.10-rc2-mm1] OOPS on boot (hotplug related?)

Mathieu Segaud <[email protected]> disait derni?rement que :

> V. Saveliev provided the right fix shortly after I reported this oops.
>
> I attach the patch
>
> Regards,

correcting myself, the patch I gave was to apply in fs/reiser4...
by the way, thanks go to Vladimir Saveliev.


Attachments:
reiser4-context-fix.patch (623.00 B)
(No filename) (69.00 B)
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