[panic] kernel BUG at mm/slab.c:513!

Got kernel panic of target HN while online migrating a CT. Both HNs are running 2.6.32-042stab072.10 kernel, panic occurs only on target HN.

Jan 31 14:47:07 192.168.66.16 [ 2300.101532] CT: 555: started
Jan 31 14:47:07 192.168.66.16 [ 2300.131880] ------------[ cut here ]------------
Jan 31 14:47:07 192.168.66.16 [ 2300.131954] kernel BUG at mm/slab.c:513!
Jan 31 14:47:07 192.168.66.16 [ 2300.132018] invalid opcode: 0000 [#1]
Jan 31 14:47:07 192.168.66.16 SMP
Jan 31 14:47:07 192.168.66.16
Jan 31 14:47:07 192.168.66.16 [ 2300.132087] last sysfs file: /sys/devices/system/cpu/cpu15/cache/index2/shared_cpu_map
Jan 31 14:47:07 192.168.66.16 [ 2300.132210] CPU 9
Jan 31 14:47:07 192.168.66.16
Jan 31 14:47:07 192.168.66.16 [ 2300.132217] Modules linked in:
Jan 31 14:47:07 192.168.66.16 netconsole
Jan 31 14:47:07 192.168.66.16 configfs
Jan 31 14:47:07 192.168.66.16 vzevent
Jan 31 14:47:07 192.168.66.16 vzethdev
Jan 31 14:47:07 192.168.66.16 vznetdev
Jan 31 14:47:07 192.168.66.16 simfs
Jan 31 14:47:07 192.168.66.16 vzrst
Jan 31 14:47:07 192.168.66.16 vzcpt
Jan 31 14:47:07 192.168.66.16 vzdquota
Jan 31 14:47:07 192.168.66.16 vzmon
Jan 31 14:47:07 192.168.66.16 vzdev
Jan 31 14:47:07 192.168.66.16 ip6t_REJECT
Jan 31 14:47:07 192.168.66.16 ip6table_mangle
Jan 31 14:47:07 192.168.66.16 ip6table_filter
Jan 31 14:47:07 192.168.66.16 ip6_tables
Jan 31 14:47:07 192.168.66.16 xt_length
Jan 31 14:47:07 192.168.66.16 xt_hl
Jan 31 14:47:07 192.168.66.16 xt_tcpmss
Jan 31 14:47:07 192.168.66.16 xt_TCPMSS
Jan 31 14:47:07 192.168.66.16 xt_multiport
Jan 31 14:47:07 192.168.66.16 xt_limit
Jan 31 14:47:07 192.168.66.16 xt_dscp
Jan 31 14:47:07 192.168.66.16 sco
Jan 31 14:47:07 192.168.66.16 bnep
Jan 31 14:47:07 192.168.66.16 rfcomm
Jan 31 14:47:07 192.168.66.16 l2cap
Jan 31 14:47:07 192.168.66.16 bluetooth
Jan 31 14:47:07 192.168.66.16 rfkill
Jan 31 14:47:07 192.168.66.16 dm_crypt
Jan 31 14:47:07 192.168.66.16 nfsd
Jan 31 14:47:07 192.168.66.16 nfs
Jan 31 14:47:07 192.168.66.16 lockd
Jan 31 14:47:07 192.168.66.16 fscache
Jan 31 14:47:07 192.168.66.16 nfs_acl
Jan 31 14:47:07 192.168.66.16 auth_rpcgss
Jan 31 14:47:07 192.168.66.16 ipt_REJECT
Jan 31 14:47:07 192.168.66.16 xt_state
Jan 31 14:47:07 192.168.66.16 sunrpc
Jan 31 14:47:07 192.168.66.16 iptable_filter
Jan 31 14:47:07 192.168.66.16 iptable_mangle
Jan 31 14:47:07 192.168.66.16 iptable_nat
Jan 31 14:47:07 192.168.66.16 nf_nat
Jan 31 14:47:07 192.168.66.16 nf_conntrack_ipv4
Jan 31 14:47:07 192.168.66.16 nf_conntrack
Jan 31 14:47:07 192.168.66.16 nf_defrag_ipv4
Jan 31 14:47:07 192.168.66.16 ip_tables
Jan 31 14:47:07 192.168.66.16 ipv6
Jan 31 14:47:07 192.168.66.16 i7core_edac
Jan 31 14:47:07 192.168.66.16 ioatdma
Jan 31 14:47:07 192.168.66.16 serio_raw
Jan 31 14:47:07 192.168.66.16 edac_core
Jan 31 14:47:07 192.168.66.16 shpchp
Jan 31 14:47:07 192.168.66.16 dm_mod
Jan 31 14:47:07 192.168.66.16 ext4
Jan 31 14:47:07 192.168.66.16 mbcache
Jan 31 14:47:07 192.168.66.16 jbd2
Jan 31 14:47:07 192.168.66.16 sr_mod
Jan 31 14:47:07 192.168.66.16 ses
Jan 31 14:47:07 192.168.66.16 sd_mod
Jan 31 14:47:07 192.168.66.16 cdrom
Jan 31 14:47:07 192.168.66.16 enclosure
Jan 31 14:47:07 192.168.66.16 crc_t10dif
Jan 31 14:47:07 192.168.66.16 ata_generic
Jan 31 14:47:07 192.168.66.16 pata_acpi
Jan 31 14:47:07 192.168.66.16 aacraid
Jan 31 14:47:07 192.168.66.16 igb
Jan 31 14:47:07 192.168.66.16 ata_piix
Jan 31 14:47:07 192.168.66.16 dca
Jan 31 14:47:07 192.168.66.16
Jan 31 14:47:07 192.168.66.16 [ 2300.133000]
Jan 31 14:47:07 192.168.66.16 [ 2300.133059] Pid: 8878, comm: httpd-perl veid: 555 Not tainted 2.6.32-042stab072.10 #1 042stab072_10
Jan 31 14:47:07 192.168.66.16 DEPO Computers X8DTU
Jan 31 14:47:07 192.168.66.16 /X8DTU
Jan 31 14:47:07 192.168.66.16
Jan 31 14:47:07 192.168.66.16 [ 2300.133195] RIP: 0010:[<ffffffff81184c10>]
Jan 31 14:47:07 192.168.66.16 [<ffffffff81184c10>] kfree+0x1f0/0x250
Jan 31 14:47:07 192.168.66.16 [ 2300.133323] RSP: 0018:ffff8830240f9d40 EFLAGS: 00010046
Jan 31 14:47:07 192.168.66.16 [ 2300.133389] RAX: ffffea00c0904200 RBX: ffffffffa042e4f1 RCX: 0000000000000000
Jan 31 14:47:07 192.168.66.16 [ 2300.133457] RDX: 00c0000000000000 RSI: ffff8830240f9d80 RDI: ffff883024108000
Jan 31 14:47:07 192.168.66.16 [ 2300.133526] RBP: ffff8830240f9d80 R08: 0000000000000000 R09: 0000000000000009
Jan 31 14:47:07 192.168.66.16 [ 2300.133595] R10: 00000000000000fb R11: ffff880000136da0 R12: 0000000000000286
Jan 31 14:47:07 192.168.66.16 [ 2300.133665] R13: ffff883024108000 R14: ffff883032e539c0 R15: 0000000000001000
Jan 31 14:47:07 192.168.66.16 [ 2300.133734] FS: 00007fd8cebd8700(0000) GS:ffff880089b40000(0000) knlGS:0000000000000000
Jan 31 14:47:07 192.168.66.16 [ 2300.133859] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
Jan 31 14:47:07 192.168.66.16 [ 2300.133926] CR2: 00000000b7690c00 CR3: 00000030247a0000 CR4: 00000000000006e0
Jan 31 14:47:07 192.168.66.16 [ 2300.133996] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jan 31 14:47:07 192.168.66.16 [ 2300.134064] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Jan 31 14:47:07 192.168.66.16 [ 2300.134134] Process httpd-perl (pid: 8878, veid: 555, threadinfo ffff8830240f8000, task ffff883024600780)
Jan 31 14:47:07 192.168.66.16 [ 2300.134260] Stack:
Jan 31 14:47:07 192.168.66.16 [ 2300.134320] ffff8830240f9d50
Jan 31 14:47:07 192.168.66.16 0000000000593168
Jan 31 14:47:07 192.168.66.16 ffff8830240f9d80
Jan 31 14:47:07 192.168.66.16 ffff883024108000
Jan 31 14:47:07 192.168.66.16
Jan 31 14:47:07 192.168.66.16 [ 2300.134399] <d>
Jan 31 14:47:07 192.168.66.16 ffff883031bc7000
Jan 31 14:47:07 192.168.66.16 ffff88182c56e000
Jan 31 14:47:07 192.168.66.16 ffff883032e539c0
Jan 31 14:47:07 192.168.66.16 0000000000001000
Jan 31 14:47:07 192.168.66.16
Jan 31 14:47:07 192.168.66.16 [ 2300.134537] <d>
Jan 31 14:47:07 192.168.66.16 ffff8830240f9e80
Jan 31 14:47:07 192.168.66.16 ffffffffa042e4f1
Jan 31 14:47:07 192.168.66.16 ffff883032e539c0
Jan 31 14:47:07 192.168.66.16 00000000ffffffff
Jan 31 14:47:07 192.168.66.16
Jan 31 14:47:07 192.168.66.16 [ 2300.134729] Call Trace:
Jan 31 14:47:07 192.168.66.16 [ 2300.134796] [<ffffffffa042e4f1>] rst_mm_complete+0xb61/0xcb0 [vzrst]
Jan 31 14:47:07 192.168.66.16 [ 2300.134867] [<ffffffffa042584b>] hook+0x1cb/0x1a40 [vzrst]
Jan 31 14:47:07 192.168.66.16 [ 2300.134938] [<ffffffff81069f4e>] ? __mmdrop+0x4e/0x80
Jan 31 14:47:07 192.168.66.16 [ 2300.135005] [<ffffffff8106232a>] ? finish_task_switch+0xda/0xe0
Jan 31 14:47:07 192.168.66.16 [ 2300.135075] [<ffffffffa0425680>] ? hook+0x0/0x1a40 [vzrst]
Jan 31 14:47:07 192.168.66.16 [ 2300.135143] [<ffffffffa04238bf>] child_rip+0xa/0x1b [vzrst]
Jan 31 14:47:07 192.168.66.16 [ 2300.135212] [<ffffffffa0425680>] ? hook+0x0/0x1a40 [vzrst]
Jan 31 14:47:07 192.168.66.16 [ 2300.135281] [<ffffffffa0425680>] ? hook+0x0/0x1a40 [vzrst]
Jan 31 14:47:07 192.168.66.16 [ 2300.135349] [<ffffffffa04238b5>] ? child_rip+0x0/0x1b [vzrst]
Jan 31 14:47:07 192.168.66.16 [ 2300.135416] Code:
Jan 31 14:47:07 192.168.66.16 89
Jan 31 14:47:07 192.168.66.16 c2
Jan 31 14:47:07 192.168.66.16 83
Jan 31 14:47:07 192.168.66.16 c0
Jan 31 14:47:07 192.168.66.16 01
Jan 31 14:47:07 192.168.66.16 49
Jan 31 14:47:07 192.168.66.16 89
Jan 31 14:47:07 192.168.66.16 4c
Jan 31 14:47:07 192.168.66.16 d6
Jan 31 14:47:07 192.168.66.16 18
Jan 31 14:47:07 192.168.66.16 41
Jan 31 14:47:07 192.168.66.16 89
Jan 31 14:47:07 192.168.66.16 06
Jan 31 14:47:07 192.168.66.16 4c
Jan 31 14:47:07 192.168.66.16 89
Jan 31 14:47:07 192.168.66.16 e8
Jan 31 14:47:07 192.168.66.16 66
Jan 31 14:47:07 192.168.66.16 ff
Jan 31 14:47:07 192.168.66.16 00
Jan 31 14:47:07 192.168.66.16 66
Jan 31 14:47:07 192.168.66.16 66
Jan 31 14:47:07 192.168.66.16 90
Jan 31 14:47:07 192.168.66.16 e9
Jan 31 14:47:07 192.168.66.16 32
Jan 31 14:47:07 192.168.66.16 ff
Jan 31 14:47:07 192.168.66.16 last message repeated 2 times
Jan 31 14:47:07 192.168.66.16 0f
Jan 31 14:47:07 192.168.66.16 0b
Jan 31 14:47:07 192.168.66.16 eb
Jan 31 14:47:07 192.168.66.16 fe
Jan 31 14:47:07 192.168.66.16 48
Jan 31 14:47:07 192.168.66.16 8b
Jan 31 14:47:07 192.168.66.16 40
Jan 31 14:47:07 192.168.66.16 10
Jan 31 14:47:07 192.168.66.16 48
Jan 31 14:47:07 192.168.66.16 8b
Jan 31 14:47:07 192.168.66.16 10
Jan 31 14:47:07 192.168.66.16 e9
Jan 31 14:47:07 192.168.66.16 ee
Jan 31 14:47:07 192.168.66.16 fe
Jan 31 14:47:07 192.168.66.16 ff
Jan 31 14:47:07 192.168.66.16 ff
Jan 31 14:47:07 192.168.66.16 f>
Jan 31 14:47:07 192.168.66.16 0b
Jan 31 14:47:07 192.168.66.16 eb
Jan 31 14:47:07 192.168.66.16 fe
Jan 31 14:47:07 192.168.66.16 48
Jan 31 14:47:07 192.168.66.16 8b
Jan 31 14:47:07 192.168.66.16 40
Jan 31 14:47:07 192.168.66.16 10
Jan 31 14:47:07 192.168.66.16 48
Jan 31 14:47:07 192.168.66.16 8b
Jan 31 14:47:07 192.168.66.16 10
Jan 31 14:47:07 192.168.66.16 66
Jan 31 14:47:07 192.168.66.16 85
Jan 31 14:47:07 192.168.66.16 d2
Jan 31 14:47:07 192.168.66.16 0f
Jan 31 14:47:07 192.168.66.16 89
Jan 31 14:47:07 192.168.66.16 78
Jan 31 14:47:07 192.168.66.16 fe
Jan 31 14:47:07 192.168.66.16 ff
Jan 31 14:47:07 192.168.66.16 ff
Jan 31 14:47:07 192.168.66.16 48
Jan 31 14:47:07 192.168.66.16
Jan 31 14:47:07 192.168.66.16 [ 2300.135788] RIP
Jan 31 14:47:07 192.168.66.16 [<ffffffff81184c10>] kfree+0x1f0/0x250
Jan 31 14:47:07 192.168.66.16 [ 2300.135858] RSP <ffff8830240f9d40>
Jan 31 14:47:08 192.168.66.16 [ 2300.136244] ---[ end trace 1fbb4c91a497661e ]---
Jan 31 14:47:08 192.168.66.16 [ 2300.136349] Kernel panic - not syncing: Fatal exception
Jan 31 14:47:08 192.168.66.16 [ 2300.136456] Pid: 8878, comm: httpd-perl veid: 555 Tainted: G D --------------- 2.6.32-042stab072.10 #1
Jan 31 14:47:08 192.168.66.16 [ 2300.136623] Call Trace:
Jan 31 14:47:08 192.168.66.16 [ 2300.136727] [<ffffffff814ef83b>] ? panic+0xa0/0x168
Jan 31 14:47:08 192.168.66.16 [ 2300.136835] [<ffffffff814f3bb4>] ? oops_end+0xe4/0x100
Jan 31 14:47:08 192.168.66.16 [ 2300.136946] [<ffffffff8100f28b>] ? die+0x5b/0x90
Jan 31 14:47:08 192.168.66.16 [ 2300.137052] [<ffffffff814f3454>] ? do_trap+0xc4/0x160
Jan 31 14:47:08 192.168.66.16 [ 2300.137158] [<ffffffff8100ce95>] ? do_invalid_op+0x95/0xb0
Jan 31 14:47:08 192.168.66.16 [ 2300.137264] [<ffffffff81184c10>] ? kfree+0x1f0/0x250
Jan 31 14:47:08 192.168.66.16 [ 2300.137371] [<ffffffff810969e0>] ? autoremove_wake_function+0x0/0x40
Jan 31 14:47:08 192.168.66.16 [ 2300.137479] [<ffffffff8100bf3b>] ? invalid_op+0x1b/0x20
Jan 31 14:47:08 192.168.66.16 [ 2300.137587] [<ffffffffa042e4f1>] ? rst_mm_complete+0xb61/0xcb0 [vzrst]
Jan 31 14:47:08 192.168.66.16 [ 2300.137696] [<ffffffff81184c10>] ? kfree+0x1f0/0x250
Jan 31 14:47:08 192.168.66.16 [ 2300.137803] [<ffffffffa042e4f1>] ? rst_mm_complete+0xb61/0xcb0 [vzrst]
Jan 31 14:47:08 192.168.66.16 [ 2300.137913] [<ffffffffa042584b>] ? hook+0x1cb/0x1a40 [vzrst]
Jan 31 14:47:08 192.168.66.16 [ 2300.138021] [<ffffffff81069f4e>] ? __mmdrop+0x4e/0x80
Jan 31 14:47:08 192.168.66.16 [ 2300.138128] [<ffffffff8106232a>] ? finish_task_switch+0xda/0xe0
Jan 31 14:47:08 192.168.66.16 [ 2300.138239] [<ffffffffa0425680>] ? hook+0x0/0x1a40 [vzrst]
Jan 31 14:47:08 192.168.66.16 [ 2300.138348] [<ffffffffa04238bf>] ? child_rip+0xa/0x1b [vzrst]
Jan 31 14:47:08 192.168.66.16 [ 2300.138458] [<ffffffffa0425680>] ? hook+0x0/0x1a40 [vzrst]
Jan 31 14:47:08 192.168.66.16 [ 2300.138565] [<ffffffffa0425680>] ? hook+0x0/0x1a40 [vzrst]
Jan 31 14:47:08 192.168.66.16 [ 2300.138674] [<ffffffffa04238b5>] ? child_rip+0x0/0x1b [vzrst]
Jan 31 14:47:08 192.168.66.16 [ 2300.139075] Rebooting in 30 seconds..