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VE stuck when shutting down. [message #20550] Thu, 20 September 2007 16:15 Go to next message
efball is currently offline  efball
Messages: 41
Registered: September 2006
Location: Santa Rosa, California
Member
From: openvz.org
I was trying to get OpenVZ running on a Debian etch host (kernel
2.6.18-openvz-13-1etch4-686).  I was just about done getting my template
setup and when I shut down the VE it got stuck and I got this spew. (see
below).

This server has been up and running without a fault for 3 years without
VZ, so I'm very skeptical that it's a hardware problem.

How do I unstick the VE?  It won't stop or start.  The only vz process I
see with ps is this:  

root      9063     1  0 Sep19 ?        00:00:00 [vzmond]

It is unkillable, kill -9 does nothing.  This isn't a server that I can
reboot frequently.  How can I recover from this?

Thank you,


 Sep 19 22:34:48 kamajii kernel: BUG: unable to handle kernel NULL pointer dereference at virtual address 00000034
 Sep 19 22:34:48 kamajii kernel:  printing eip:
 Sep 19 22:34:48 kamajii kernel: d0b9eb54
 Sep 19 22:34:48 kamajii kernel: *pde = 00000000
 Sep 19 22:34:48 kamajii kernel: Oops: 0000 [#1]
 Sep 19 22:34:48 kamajii kernel: SMP
 Sep 19 22:34:48 kamajii kernel: Modules linked in: ip6table_filter ip6_tables simfs vznetdev vzethdev vzrst vzcpt vzdquota vzmon vzdev ipv6 ppdev lp iptable_raw xt_policy xt_multiport ipt_ULOG ipt_TTL ipt_ttl ipt_TOS ipt_tos ipt_TCPMSS ipt_SAME ipt_REJECT ipt_REDIRECT ipt_recent ipt_owner ipt_NETMAP ipt_MASQUERADE ipt_LOG ipt_iprange ipt_hashlimit ipt_ECN ipt_ecn ipt_DSCP ipt_dscp ipt_CLUSTERIP ipt_ah ipt_addrtype ip_nat_tftp ip_nat_snmp_basic ip_nat_pptp ip_nat_irc ip_nat_ftp ip_nat_amanda ip_conntrack_tftp ip_conntrack_pptp ip_conntrack_netbios_ns ip_conntrack_irc ip_conntrack_ftp ts_kmp ip_conntrack_amanda xt_tcpmss xt_pkttype xt_physdev bridge xt_NFQUEUE xt_MARK xt_mark xt_mac xt_limit xt_length xt_helper xt_dccp xt_conntrack xt_CONNMARK xt_connmark xt_CLASSIFY xt_tcpudp xt_state iptable_nat ip_nat ip_conntrack iptable_mangle nfnetlink iptable_filter ip_tables x_tables dm_snapshot dm_mirror dm_mod tsdev snd_mpu401 snd_mpu401_uart parport_pc snd_rawmidi snd_seq_device sn!
 d soundcore floppy analog gameport parp
 Sep 19 22:34:48 kamajii kernel: rt psmouse serio_raw rtc i2c_piix4 i2c_core intel_agp agpgart pcspkr shpchp pci_hotplug evdev ext3 jbd mbcache ide_cd cdrom ide_disk 3c59x pcnet32 mii aic7xxx uhci_hcd scsi_transport_spi scsi_mod usbcore piix generic ide_core processor
 Sep 19 22:34:48 kamajii kernel: CPU:    1, VCPU: 0.0
 Sep 19 22:34:48 kamajii kernel: EIP:    0060:[<d0b9eb54>]    Not tainted VLI
 Sep 19 22:34:48 kamajii kernel: EFLAGS: 00010282   (2.6.18-openvz-13-1etch4-686 #1)
 Sep 19 22:34:48 kamajii kernel: EIP is at ip6t_unregister_table+0x7/0x14b [ip6_tables]
 Sep 19 22:34:48 kamajii kernel: eax: 00000000   ebx: 00000000   ecx: c847fa98   edx: c847fa98
 Sep 19 22:34:48 kamajii kernel: esi: cd8bf000   edi: 00000007   ebp: 00000000   esp: ceb4bf68
 Sep 19 22:34:48 kamajii kernel: ds: 007b   es: 007b   ss: 0068
 Sep 19 22:34:48 kamajii kernel: Process vzmond/777 (pid: 22585, veid: 0, ti=ceb4a000 task=c36b93e0 task.ti=ceb4a000)
 Sep 19 22:34:48 kamajii kernel: Stack: cf2d5640 c12ba200 d0b80f18 00000003 00000000 cd8bf000 00000007 00000000
 Sep 19 22:34:48 kamajii kernel:        d0b80029 d0bbcbb7 cd8bf000 cd8bf028 c02cc100 00000000 d0bbe048 00000000
 Sep 19 22:34:48 kamajii kernel:        ceb4bfce cd8bf000 00000000 d0bbe11d ceb4bfce ceb4bfce 00000012 d0bbfe15
 Sep 19 22:34:48 kamajii kernel:  Call Trace:
 Sep 19 22:34:48 kamajii kernel:  [<d0b80029>] fini_ip6table_filter+0x29/0x43 [ip6table_filter]
 Sep 19 22:34:48 kamajii kernel:  [<d0bbcbb7>] do_ve_iptables+0xa95/0xf42 [vzmon]
 Sep 19 22:34:48 kamajii kernel:  [<d0bbe048>] env_cleanup+0xa3/0x150 [vzmon]
 Sep 19 22:34:48 kamajii kernel:  [<d0bbe11d>] vzmond_helper+0x28/0x34 [vzmon]
 Sep 19 22:34:48 kamajii kernel:  [<d0bbe0f5>] vzmond_helper+0x0/0x34 [vzmon]
 Sep 19 22:34:48 kamajii kernel:  [<c0100c75>] kernel_thread_helper+0x5/0xb
 Sep 19 22:34:48 kamajii kernel: Code: 0f 85 e2 fe ff ff 8b 44 24 04 89 38 eb 0c bb fe ff ff ff eb 05 bb b6 ff ff ff 83 c4 10 89 d8 5b 5e 5f 5d c3 55 57 56 53 83 ec 10 <8b> 50 34 89 54 24 08 e8 a9 7e f1 ff 89 04 24 89 e0 25 00 e0 ff
 Sep 19 22:34:48 kamajii kernel: EIP: [<d0b9eb54>] ip6t_unregister_table+0x7/0x14b [ip6_tables] SS:ESP 0068:ceb4bf68
 Sep 19 22:34:48 kamajii kernel: d0b9eb54

-- 

   E Frank Ball                efball@efball.com
Re: VE stuck when shutting down. [message #20552 is a reply to message #20550] Thu, 20 September 2007 16:34 Go to previous message
Thorsten Schifferdeck is currently offline  Thorsten Schifferdeck
Messages: 38
Registered: February 2006
Member
From: openvz.org
Hi,

it's known and resolved bug, see 
http://bugzilla.openvz.org/show_bug.cgi?id=561

Please install the new Debian OpenVZ kernel; can be downloaded at 
http://download.openvz.org/debian/dists/etch/main/binary-i386/base/

Regards,
Thorsten

E Frank Ball III schrieb:
> I was trying to get OpenVZ running on a Debian etch host (kernel
> 2.6.18-openvz-13-1etch4-686).  I was just about done getting my template
> setup and when I shut down the VE it got stuck and I got this spew. (see
> below).
> 
> This server has been up and running without a fault for 3 years without
> VZ, so I'm very skeptical that it's a hardware problem.
> 
> How do I unstick the VE?  It won't stop or start.  The only vz process I
> see with ps is this:  
> 
> root      9063     1  0 Sep19 ?        00:00:00 [vzmond]
> 
> It is unkillable, kill -9 does nothing.  This isn't a server that I can
> reboot frequently.  How can I recover from this?
> 
> Thank you,
> 
> 
>  Sep 19 22:34:48 kamajii kernel: BUG: unable to handle kernel NULL pointer dereference at virtual address 00000034
>  Sep 19 22:34:48 kamajii kernel:  printing eip:
>  Sep 19 22:34:48 kamajii kernel: d0b9eb54
>  Sep 19 22:34:48 kamajii kernel: *pde = 00000000
>  Sep 19 22:34:48 kamajii kernel: Oops: 0000 [#1]
>  Sep 19 22:34:48 kamajii kernel: SMP
>  Sep 19 22:34:48 kamajii kernel: Modules linked in: ip6table_filter ip6_tables simfs vznetdev vzethdev vzrst vzcpt vzdquota vzmon vzdev ipv6 ppdev lp iptable_raw xt_policy xt_multiport ipt_ULOG ipt_TTL ipt_ttl ipt_TOS ipt_tos ipt_TCPMSS ipt_SAME ipt_REJECT ipt_REDIRECT ipt_recent ipt_owner ipt_NETMAP ipt_MASQUERADE ipt_LOG ipt_iprange ipt_hashlimit ipt_ECN ipt_ecn ipt_DSCP ipt_dscp ipt_CLUSTERIP ipt_ah ipt_addrtype ip_nat_tftp ip_nat_snmp_basic ip_nat_pptp ip_nat_irc ip_nat_ftp ip_nat_amanda ip_conntrack_tftp ip_conntrack_pptp ip_conntrack_netbios_ns ip_conntrack_irc ip_conntrack_ftp ts_kmp ip_conntrack_amanda xt_tcpmss xt_pkttype xt_physdev bridge xt_NFQUEUE xt_MARK xt_mark xt_mac xt_limit xt_length xt_helper xt_dccp xt_conntrack xt_CONNMARK xt_connmark xt_CLASSIFY xt_tcpudp xt_state iptable_nat ip_nat ip_conntrack iptable_mangle nfnetlink iptable_filter ip_tables x_tables dm_snapshot dm_mirror dm_mod tsdev snd_mpu401 snd_mpu401_uart parport_pc snd_rawmidi snd_seq_device 
sn!
>  d soundcore floppy analog gameport parp
>  Sep 19 22:34:48 kamajii kernel: rt psmouse serio_raw rtc i2c_piix4 i2c_core intel_agp agpgart pcspkr shpchp pci_hotplug evdev ext3 jbd mbcache ide_cd cdrom ide_disk 3c59x pcnet32 mii aic7xxx uhci_hcd scsi_transport_spi scsi_mod usbcore piix generic ide_core processor
>  Sep 19 22:34:48 kamajii kernel: CPU:    1, VCPU: 0.0
>  Sep 19 22:34:48 kamajii kernel: EIP:    0060:[<d0b9eb54>]    Not tainted VLI
>  Sep 19 22:34:48 kamajii kernel: EFLAGS: 00010282   (2.6.18-openvz-13-1etch4-686 #1)
>  Sep 19 22:34:48 kamajii kernel: EIP is at ip6t_unregister_table+0x7/0x14b [ip6_tables]
>  Sep 19 22:34:48 kamajii kernel: eax: 00000000   ebx: 00000000   ecx: c847fa98   edx: c847fa98
>  Sep 19 22:34:48 kamajii kernel: esi: cd8bf000   edi: 00000007   ebp: 00000000   esp: ceb4bf68
>  Sep 19 22:34:48 kamajii kernel: ds: 007b   es: 007b   ss: 0068
>  Sep 19 22:34:48 kamajii kernel: Process vzmond/777 (pid: 22585, veid: 0, ti=ceb4a000 task=c36b93e0 task.ti=ceb4a000)
>  Sep 19 22:34:48 kamajii kernel: Stack: cf2d5640 c12ba200 d0b80f18 00000003 00000000 cd8bf000 00000007 00000000
>  Sep 19 22:34:48 kamajii kernel:        d0b80029 d0bbcbb7 cd8bf000 cd8bf028 c02cc100 00000000 d0bbe048 00000000
>  Sep 19 22:34:48 kamajii kernel:        ceb4bfce cd8bf000 00000000 d0bbe11d ceb4bfce ceb4bfce 00000012 d0bbfe15
>  Sep 19 22:34:48 kamajii kernel:  Call Trace:
>  Sep 19 22:34:48 kamajii kernel:  [<d0b80029>] fini_ip6table_filter+0x29/0x43 [ip6table_filter]
>  Sep 19 22:34:48 kamajii kernel:  [<d0bbcbb7>] do_ve_iptables+0xa95/0xf42 [vzmon]
>  Sep 19 22:34:48 kamajii kernel:  [<d0bbe048>] env_cleanup+0xa3/0x150 [vzmon]
>  Sep 19 22:34:48 kamajii kernel:  [<d0bbe11d>] vzmond_helper+0x28/0x34 [vzmon]
>  Sep 19 22:34:48 kamajii kernel:  [<d0bbe0f5>] vzmond_helper+0x0/0x34 [vzmon]
>  Sep 19 22:34:48 kamajii kernel:  [<c0100c75>] kernel_thread_helper+0x5/0xb
>  Sep 19 22:34:48 kamajii kernel: Code: 0f 85 e2 fe ff ff 8b 44 24 04 89 38 eb 0c bb fe ff ff ff eb 05 bb b6 ff ff ff 83 c4 10 89 d8 5b 5e 5f 5d c3 55 57 56 53 83 ec 10 <8b> 50 34 89 54 24 08 e8 a9 7e f1 ff 89 04 24 89 e0 25 00 e0 ff
>  Sep 19 22:34:48 kamajii kernel: EIP: [<d0b9eb54>] ip6t_unregister_table+0x7/0x14b [ip6_tables] SS:ESP 0068:ceb4bf68
>  Sep 19 22:34:48 kamajii kernel: d0b9eb54
>
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