2.6.0-test8, oops, [__remove_from_page_cache+36/112] __remove_from_page_cache+0x24/0x70

2.6.0-test8, oops, [__remove_from_page_cache+36/112] __remove_from_page_cache+0x24/0x70

[Jacek Kawa]

Hello!

This machine has new RAM, but after about 7 hours of testing, memtest.86 didn't
show any errors... 

More system details below.

Unable to handle kernel NULL pointer dereference at virtual address 00000006
 printing eip:
c01acc43
*pde = 00000000
Oops: 0000 [#1]
CPU:    0
EIP:    0060:[radix_tree_delete+83/256]    Not tainted
EFLAGS: 00010206
EIP is at radix_tree_delete+0x53/0x100
eax: 00000006   ebx: 0000001e   ecx: 00000024   edx: 00000002
esi: c13a7d3c   edi: 00000000   ebp: c295f490   esp: c13a7d1c
ds: 007b   es: 007b   ss: 0068
Process kswapd0 (pid: 8, threadinfo=c13a6000 task=c13aacc0)
Stack: cffe7b6c c3be4cb0 00000006 00000000 00000000 c295f498 c108e238 c108e23c 
       00000002 00000006 c10cdaa0 c108d518 c108d4a0 c108e4e0 c108e490 c108e440 
       c108e418 c108e3c8 c108e2b0 c10bfab8 c108e238 c295f48c 00000001 c13a6000 
Call Trace:
 [__remove_from_page_cache+36/112] __remove_from_page_cache+0x24/0x70
 [shrink_list+1032/1376] shrink_list+0x408/0x560
 [__pte_chain_free+113/128] __pte_chain_free+0x71/0x80
 [shrink_cache+416/800] shrink_cache+0x1a0/0x320
 [shrink_zone+126/176] shrink_zone+0x7e/0xb0
 [balance_pgdat+410/544] balance_pgdat+0x19a/0x220
 [kswapd+277/304] kswapd+0x115/0x130
 [autoremove_wake_function+0/80] autoremove_wake_function+0x0/0x50
 [ret_from_fork+6/20] ret_from_fork+0x6/0x14
 [autoremove_wake_function+0/80] autoremove_wake_function+0x0/0x50
 [kswapd+0/304] kswapd+0x0/0x130
 [kernel_thread_helper+5/16] kernel_thread_helper+0x5/0x10

Code: 8b 10 85 d2 74 57 89 56 08 88 d9 89 f8 d3 e8 83 eb 06 83 e0 
 <6>note: kswapd0[8] exited with preempt_count 1


config: http://zeus.polsl.gliwice.pl/~jfk/kernel/2.6.0-test8/config

cpuinfo: http://zeus.polsl.gliwice.pl/~jfk/kernel/2.6.0-test8/cpuinfo
dmesg: http://zeus.polsl.gliwice.pl/~jfk/kernel/2.6.0-test8/dmesg
lsmod: http://zeus.polsl.gliwice.pl/~jfk/kernel/2.6.0-test8/lsmod
lspci: http://zeus.polsl.gliwice.pl/~jfk/kernel/2.6.0-test8/lspci
vmstat: http://zeus.polsl.gliwice.pl/~jfk/kernel/2.6.0-test8/vmstat

I can provide more information if needed. :)

bye

-- 
Jacek Kawa    **W Mysłowicach to wogóle nie ma przyciągania ziemskiego.
            Tam trzeba pół litra wypić, żeby było przyciąganie ziemskie.**

Re: 2.6.0-test8, oops, [__remove_from_page_cache+36/112] __remove_from_page_cache+0x24/0x70

[Jacek Kawa]

Jak podają anonimowe źródła, przepowiedziano, że Jacek Kawa napisze:

> This machine has new RAM, but after about 7 hours of testing, 
> memtest.86 didn't show any errors... 

Well, it's RAM anyway... I've just got few segfaults in vim...

bye

-- 
Jacek Kawa

Re: 2.6.0-test8, oops, [__remove_from_page_cache+36/112] __remove_from_page_cache+0x24/0x70

[Robert L. Harris]

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This sounds like what mine was doing, the oops looked similar as well
(with the null pointer part atleast).  Reboot and I bet it'll run fine
for a while and then start up again.  For me it seemed to start faulting
when "free" showed over 250 Megs used.


Thus spake Jacek Kawa (jfk@zeus.polsl.gliwice.pl):

> Jak podaj? anonimowe ?r?d?a, przepowiedziano, ?e Jacek Kawa napisze:
> 
> > This machine has new RAM, but after about 7 hours of testing, 
> > memtest.86 didn't show any errors... 
> 
> Well, it's RAM anyway... I've just got few segfaults in vim...
> 
> bye
> 
> -- 
> Jacek Kawa
> -
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:wq!
---------------------------------------------------------------------------
Robert L. Harris                     | GPG Key ID: E344DA3B
                                         @ x-hkp://pgp.mit.edu
DISCLAIMER:
      These are MY OPINIONS ALONE.  I speak for no-one else.

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  Microsoft produces 15 car pileups on the highway.
    Don't stop traffic to stand and gawk at the tragedy.

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Re: 2.6.0-test8, oops, [__remove_from_page_cache+36/112] __remove_from_page_cache+0x24/0x70

[Jacek Kawa]

Robert L. Harris wrote:

> > > This machine has new RAM, but after about 7 hours of testing, 
> > > memtest.86 didn't show any errors... 
> > Well, it's RAM anyway... I've just got few segfaults in vim...
> This sounds like what mine was doing, the oops looked similar as well
> (with the null pointer part atleast).  Reboot and I bet it'll run fine
> for a while and then start up again.  For me it seemed to start faulting
> when "free" showed over 250 Megs used.

In next run memtest found some errors (after nine hours though ;) 

So hardware, not Linux. :)

bye

-- 
Jacek Kawa