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kernel oops plz help [message #27129] Sun, 10 February 2008 16:08 Go to next message
sara3 is currently offline  sara3
Messages: 38
Registered: February 2008
Member
hello
i'm lately getting many kernel oops like these

BUG: unable to handle kernel NULL pointer dereference at virtual address 00000003
 printing eip:
c0143f31
*pde = 00000000
Oops: 0000 [#1]
SMP
Modules linked in: simfs vzethdev vzrst vzcpt vzdquota af_packet parport_pc lp parport autofs4 sunrpc vznetdev vzmon vzdev ip_nat_ftp xt_state xt_length ipt_ttl xt_tcpmss ipt_TCPMSS xt_multiport xt_limit ipt_LOG ipt_TOS ipt_tos ipt_REJECT xt_tcpudp iptable_filter iptable_mangle iptable_nat ip_nat ip_conntrack ip_tables x_tables i2c_piix4 i2c_core e100 e1000 sis900 mii
CPU:    1, VCPU: 0.1
EIP:    0060:[<c0143f31>]    Not tainted VLI
EFLAGS: 00010286   (2.6.18-ovz028stab023.1-smp #1)
EIP is at ub_page_uncharge+0x31/0x90
eax: ffffffff   ebx: c120b974   ecx: 00000000   edx: 00000001
esi: ded9ac21   edi: c120b974   ebp: c05567b4   esp: f7eadd24
ds: 007b   es: 007b   ss: 0068
Process kswapd0 (pid: 111, veid: 0, ti=f7ead000 task=f7e887e0 task.ti=f7ead000)
Stack: 00000246 c120b974 c120b974 c0556794 00000000 c015f305 c120b974 00000000
      e418fa60 c11e1020 c0556740 00000006 f7eadd74 f7eade6c f7eadf30 c015fd4c
      f7eadde4 f7eadd74 c0162b2a f7eadd74 0000000e 00000001 c107a778 c135c754
 Call Trace:
 [<c015f305>] free_hot_cold_page+0xf5/0x1a0
 [<c015fd4c>] __pagevec_free+0x1c/0x30
 [<c0162b2a>] __pagevec_release_nonlru+0x6a/0x90
 [<c0164024>] shrink_page_list+0x264/0x410
 [<c0164386>] shrink_inactive_list+0xe6/0x2e0
 [<c0164b94>] shrink_zone+0xc4/0x100
 [<c016511f>] balance_pgdat+0x1ff/0x360
 [<c016534a>] kswapd+0xca/0x130
 [<c013d770>] autoremove_wake_function+0x0/0x60
 [<c013d770>] autoremove_wake_function+0x0/0x60
 [<c0165280>] kswapd+0x0/0x130
 [<c013d246>] kthread+0xc6/0x110
 [<c013d180>] kthread+0x0/0x110
 [<c0101301>] kernel_thread_helper+0x5/0x14
Code: 1c 89 7c 24 10 8b 7c 24 18 89 5c 24 08 89 74 24 0c 8b 77 20 85 f6 74 4f 89 e2 8b 86 40 05 00 00 81 e2 00 f0 ff ff 8b 52 10 f7 d0 <8b> 14 90 b8 01 00 00 00 d3 e0 29 42 20 81 3e 75 62 75 62 75 37
EIP: [<c0143f31>] ub_page_uncharge+0x31/0x90 SS:ESP 0068:f7eadd24


and

Message from syslogd@ls1614 at Sun Feb 10 16:56:35 2008 ...
ls1614 kernel: Oops: 0000 [#1]
 
Message from syslogd@ls1614 at Sun Feb 10 16:56:35 2008 ...
ls1614 kernel: SMP 
 
Message from syslogd@ls1614 at Sun Feb 10 16:56:35 2008 ...
ls1614 kernel: CPU:    3, VCPU: 0.2
 
Message from syslogd@ls1614 at Sun Feb 10 16:56:35 2008 ...
ls1614 kernel: EIP is at 0x1fff
 
Message from syslogd@ls1614 at Sun Feb 10 16:56:35 2008 ...
ls1614 kernel: eax: 0000005b   ebx: f63e8200   ecx: 00000000   edx: 00000000
 
Message from syslogd@ls1614 at Sun Feb 10 16:56:35 2008 ...
ls1614 kernel: esi: 00000001   edi: d2c95ea8   ebp: 00000000   esp: d2c95e6c
 
Message from syslogd@ls1614 at Sun Feb 10 16:56:35 2008 ...
ls1614 kernel: ds: 007b   es: 007b   ss: 0068
 
Message from syslogd@ls1614 at Sun Feb 10 16:56:35 2008 ...
ls1614 kernel: Process xx (pid: 4449, veid: 0, ti=d2c95000 task=f2c1f340 task.ti=d2c95000)
 
Message from syslogd@ls1614 at Sun Feb 10 16:56:35 2008 ...
ls1614 kernel: Stack: c01ad80e 00000000 00000000 f2c1f340 ffffffe0 00000001 d2c95ea8 d2c95f48 
 
Message from syslogd@ls1614 at Sun Feb 10 16:56:35 2008 ...
ls1614 kernel:        f63e8200 c01aeeb5 f63e8200 d2c95ea8 d2c95f48 d2c95ec8 00000000 d2c95f48 
 
Message from syslogd@ls1614 at Sun Feb 10 16:56:35 2008 ...
ls1614 kernel:        d2c95ec8 00000030 00000000 c0557efc c015a3c3 f66de17c 0000006b 00000000 
 
Message from syslogd@ls1614 at Sun Feb 10 16:56:35 2008 ...
ls1614 kernel:  Call Trace:
 
Message from syslogd@ls1614 at Sun Feb 10 16:56:35 2008 ...
ls1614 kernel: Code:  Bad EIP value.
 
Message from syslogd@ls1614 at Sun Feb 10 16:56:35 2008 ...
ls1614 kernel: EIP: [<00001fff>] 0x1fff SS:ESP 0068:d2c95e6c



please advise
Re: kernel oops plz help [message #27131 is a reply to message #27129] Sun, 10 February 2008 16:18 Go to previous messageGo to next message
sara3 is currently offline  sara3
Messages: 38
Registered: February 2008
Member
my kernel version is

Linux xxx.xxxxx.net 2.6.18-ovz028stab023.1-smp #1 SMP Tue Mar 20 17:39:04 MSK 2007 i686 i686 i386 GNU/Linux
Re: kernel oops plz help [message #27151 is a reply to message #27131] Mon, 11 February 2008 11:58 Go to previous messageGo to next message
maratrus is currently offline  maratrus
Messages: 1495
Registered: August 2007
Location: Moscow
Senior Member
Hi,

at first look at this page
http://forum.openvz.org/index.php?t=msg&goto=11313&
Re: kernel oops plz help [message #27161 is a reply to message #27151] Mon, 11 February 2008 14:28 Go to previous messageGo to next message
sara3 is currently offline  sara3
Messages: 38
Registered: February 2008
Member
Hi
memtester was done by the data center and they said it was ok and my ram are good

im not sure of the cause of the kernel oops however the server didnt have its kernel to panic before
Re: kernel oops plz help [message #27174 is a reply to message #27161] Mon, 11 February 2008 17:23 Go to previous messageGo to next message
maratrus is currently offline  maratrus
Messages: 1495
Registered: August 2007
Location: Moscow
Senior Member
Hi,

Can you please test your hardware with not only memtester also with
memtest86+. It may be important.
Re: kernel oops plz help [message #27185 is a reply to message #27174] Mon, 11 February 2008 18:28 Go to previous messageGo to next message
sara3 is currently offline  sara3
Messages: 38
Registered: February 2008
Member
hmm
it can cause almost one full day of downtime
please let it be a last resort
do errors i provide show anything or predict anything ?
Re: kernel oops plz help [message #27337 is a reply to message #27129] Fri, 15 February 2008 09:06 Go to previous messageGo to next message
xemul is currently offline  xemul
Messages: 248
Registered: November 2005
Senior Member
All the OOPS-s, BUG-s, etc should go to bugzilla. Please, fill in the BUG if this problem still exists.

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Re: kernel oops plz help [message #27341 is a reply to message #27337] Fri, 15 February 2008 11:27 Go to previous messageGo to next message
sara3 is currently offline  sara3
Messages: 38
Registered: February 2008
Member
Okay
I have a question
can i try upgrading / downgrading the kernel to see if its really a kernel bug or a hardware / any other thing's fault ?

i also notice
-a great high load after the oops
- the oops are daily at fixed time 12.23 am
- few ports fails to direct to the ve's and this problem npt fixed untill i restart the service called network

please advice
Re: kernel oops plz help [message #27450 is a reply to message #27129] Mon, 18 February 2008 08:30 Go to previous messageGo to next message
xemul is currently offline  xemul
Messages: 248
Registered: November 2005
Senior Member
Well, thie oops can be the result of some rare circumstances, so changing the kernel won't give any definite knowledge about it, unless this happens in 100% cases.

Quote:

a great high load after the oops

A great high load after the oops is OK. After an OOPS enything can happen.

Quote:

the oops are daily at fixed time 12.23 am

Shocked what? Every day at 12.23 am you see that sh... oops?

Quote:

few ports fails to direct to the ve's...

Can you elaborate on this?


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Re: kernel oops plz help [message #27643 is a reply to message #27450] Thu, 21 February 2008 13:47 Go to previous messageGo to next message
sara3 is currently offline  sara3
Messages: 38
Registered: February 2008
Member
hello
yes
i have the following rare problem

everyday at fixed time around 12:22-1:30 am
i see some ports begins to fail in all VEs for example i cannot connect to cpanel running on all vpses at once
i then see the oops i posted earlier
the problem is fixed when i do service network restart on main HW node and then restart network on each ve then restart cpanel itself
by the way i get the following error when i try to restart network service on a ve
Shutting down interface venet0:                            [  OK  ]
Shutting down loopback interface:                          [  OK  ]
Setting network parameters:  error: unknown error 1 setting key 'kernel.sysrq'
net.ipv4.ip_forward = 0
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.default.accept_source_route = 0
error: unknown error 1 setting key 'kernel.core_uses_pid'
                                                           [FAILED]
Bringing up loopback interface:                            [  OK  ]
Bringing up interface venet0:                              [  OK  ]

however no error when restarting network service on main hw node

also i have strange problem on hw node
its that when i restart iptables the server fails offline and unconnectable either immediately or few seconds after restarting iptables however i tried reinstalling iptables

please advise
Re: kernel oops plz help [message #27667 is a reply to message #27129] Fri, 22 February 2008 08:47 Go to previous messageGo to next message
xemul is currently offline  xemul
Messages: 248
Registered: November 2005
Senior Member
You're using rather old kernel (ovz028stab023 is in oops report). Can you try with some more fresh one?

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Re: kernel oops plz help [message #27689 is a reply to message #27667] Fri, 22 February 2008 16:08 Go to previous messageGo to next message
sara3 is currently offline  sara3
Messages: 38
Registered: February 2008
Member
mesg: error: tty device is not owned by group `tty'

hello
i already upgraded it to
2.6.18-ovz028stab053.5-

same errors occures
Re: kernel oops plz help [message #27751 is a reply to message #27129] Tue, 26 February 2008 08:12 Go to previous message
xemul is currently offline  xemul
Messages: 248
Registered: November 2005
Senior Member
Ok. Fill the BUG and we'll look a it.

Thanks.


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