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Sorry for late reply.

That kernel you listed was released on 2014-12-18.

There has been lots of security updates and bug fixes since.

The current (latest) version is:

3.10.0-229.4.2.el7.x86_64

Please update. :)

Regards,
Matt.

On 2/06/2015 16:31, Priyanka wrote:
> Sir,
>
> uname -r
>
> 3.10.0-123.13.2.el7.x86_64
>
> I have stopped iptables services since the start. So, should I still
> follow what they have mentioned in the 5th comment?
>
> Thanks,
>
> Priyanka
>
>
> On Tuesday 02 June 2015 11:49 AM, Matt Taylor wrote:
>> Hi Priyanka,
>>
>> Are you using an old kernel ('uname -r' please)? I've seen issues with
>> unlink_anon_vmas in Fedora, so this is rather interesting.
>>
>> In regards to the 2nd kernel panic, it indicates that it's due to
>> iptables and get_counters.
>>
>> It's possibly related to this:
>>
>> https://bugzilla.redhat.com/show_bug.cgi?id=1089569
>>
>> Might be worth trying what was mentioned in the 5th comment.
>>
>> Regards,
>> Matt.
>>
>> On 2/06/2015 15:14, Priyanka wrote:
>>> Hi,
>>>
>>> I have an Openstack Juno setup with one controller node and 3 compute
>>> nodes. I installed it using packstack on centOS 7. One of the compute
>>> node crashed twice. First crash was two days back and second one today.
>>> It automatically restarts after the crash. The crash log in /var/crash
>>> were different in both the instances.
>>>
>>> Crash 1 log:
>>>
>>> |CPU:  5  PID:  16617  Comm:  pickupNot
>>> tainted3.10.0-123.13.2.el7.x86_64#1
>>> [11971.208387]  Hardware  name:  Intel  Corporation S2600CP/S2600CP,
>>> BIOS SE5C600.86B.02.02.0002.122320131210 12/23/2013
>>> [11971.208389]   ffff8807de2b1cc800000000a2deb902 ffff8807de2b1c80
>>> ffffffff815e232c
>>> [11971.208392]   ffff8807de2b1cb8 ffffffff8105dee1 ffff8807f8e85f50
>>> ffff8807f8e85f40
>>> [11971.208394]   ffff8807f90db0c0 ffff8807f8e85f50 ffff8807f90db0c0
>>> ffff8807de2b1d20
>>> [11971.208396]  Call  Trace:
>>> [11971.208401]   [<ffffffff815e232c>] dump_stack+0x19/0x1b
>>> [11971.208405]   [<ffffffff8105dee1>] warn_slowpath_common+0x61/0x80
>>> [11971.208408]   [<ffffffff8105df5c>] warn_slowpath_fmt+0x5c/0x80
>>> [11971.208410]   [<ffffffff812cff82>] __list_del_entry+0x82/0xd0
>>> [11971.208412]   [<ffffffff812cffdd>]  list_del+0xd/0x30
>>> [11971.208415]   [<ffffffff811776a3>] unlink_anon_vmas+0x93/0x180
>>> [11971.208418]   [<ffffffff81168b88>] free_pgtables+0xa8/0x120
>>> [11971.208420]   [<ffffffff81173556>] exit_mmap+0xc6/0x1a0
>>> [11971.208422]   [<ffffffff8105b187>]  mmput+0x67/0xf0
>>> [11971.208424]   [<ffffffff81063dac>]  do_exit+0x28c/0xa60
>>> [11971.208426]   [<ffffffff810645ff>] do_group_exit+0x3f/0xa0
>>> [11971.208428]   [<ffffffff81064674>] SyS_exit_group+0x14/0x20
>>> [11971.208431]   [<ffffffff815f2a19>] system_call_fastpath+0x16/0x1b
>>> [11971.208432]  ---[  end  trace ebed116bce4ce8eb]---
>>> [11971.208437]  BUG:  unable to handle kernel NULL pointer
>>> dereference at(null)
>>> [11971.208471]  IP:  [<ffffffff81177663>] unlink_anon_vmas+0x53/0x180
>>> [11971.208493]  PGD0
>>> [11971.208502]  Oops:  0000  [#1] SMP|
>>>
>>> Crash 2 log:
>>>
>>> |[321808.123092]  BUG:  unable to handle kernel paging request at
>>> ffffc90017456008
>>> [321808.123122]  IP:  [<ffffffffa03a8521>] get_counters+0x91/0xd0
>>> [ip_tables]
>>> [321808.123146]  PGD81d437067  PUD81d4a4067  PMD7ec309067  PTE0
>>> [321808.123167]  Oops:  0002  [#1] SMP
>>> [321808.123179]  Modules  linkedin:  dummy vhost_net macvtap macvlan
>>> tun iptable_nat nf_nat_ipv4 nf_nat iptable_raw iptable_filter
>>> ip_tables nf_conntrack_ipv6 nf_defrag_ipv6 xt_mac xt_physdev xt_set
>>> ip_set_hash_ip ip_set nfnetlink veth ip6table_filter ip6_tables
>>> ebtable_nat ebtables openvswitch vxlan ip_tunnel gre sg ipt_REJECT
>>> xt_comment xt_conntrack xt_multiport nf_conntrack_ipv4 nf_defrag_ipv4
>>> nf_conntrack coretemp kvm_intel kvm crct10dif_pclmul iTCO_wdt
>>> iTCO_vendor_support crc32_pclmul crc32c_intel ghash_clmulni_intel
>>> sb_edac edac_core pcspkr lpc_ich ioatdma i2c_i801 mfd_core
>>> aesni_intel lrw gf128mul glue_helper ablk_helper cryptd mei_me mei
>>> shpchp wmi acpi_cpufreq mperf nfsd auth_rpcgss nfs_acl lockd sunrpc
>>> bridge stp llc xfs libcrc32c sd_mod crc_t10di
>>>   f crct10d
>>>
>>> if_common mgag200 syscopyarea sysfillrect
>>> [321808.123452]   sysimgblt drm_kms_helper ttm isci igb ahci drm
>>> libsas libahci ptp scsi_transport_sas pps_core dca libata
>>> i2c_algo_bit i2c_core dm_mirror dm_region_hash dm_log dm_mod[last
>>> unloaded:  ip_tables]
>>> [321808.123521]  CPU:  10  PID:  110268  Comm: iptables-saveNot
>>> tainted3.10.0-123.13.2.el7.x86_64#1
>>> [321808.123547]  Hardware  name:  Intel  Corporation
>>> S2600CP/S2600CP,  BIOS SE5C600.86B.02.02.0002.122320131210 12/23/2013
>>> [321808.123577]  task:  ffff88080a8f38e0 ti:  ffff8807ed398000
>>> task.ti:  ffff8807ed398000
>>> [321808.123599]  RIP:  0010:[<ffffffffa03a8521>]
>>> [<ffffffffa03a8521>]  get_counters+0x91/0xd0  [ip_tables]
>>> [321808.123627]  RSP:  0018:ffff8807ed399da8  EFLAGS:  00010286
>>> [321808.123643]  RAX:  ffffc90014ab72e8 RBX:  0000000000010380 RCX:
>>> ffffc90017456000
>>> [321808.123664]  RDX:  0000000000000054  RSI:  0000000000000000 RDI:
>>> ffff88081e290380
>>> [321808.123685]  RBP:  ffff8807ed399dc8 R08:  0000000000000101 R09:
>>> ffff8807ed96caa0
>>> [321808.123706]  R10:  0000000000000000  R11:  ffffffff8117b2e8 R12:
>>> ffffffff819e4aa0
>>> [321808.123727]  R13:  ffff8807ed96c800 R14:  ffffc90017455000 R15:
>>> ffff88080c961ba0
>>> [321808.123748]  FS:   00007fdcc2078740(0000)
>>> GS:ffff88081d940000(0000)  knlGS:0000000000000000
>>> [321808.123772]  CS:   0010  DS:  0000  ES:  0000  CR0: 0000000080050033
>>> ||[321808.123789] CR2: ffffc90017456008 CR3: 00000007ec30e000 CR4:
>>> 00000000001427e0
>>> [321808.123810] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
>>> 0000000000000000
>>> [321808.123831] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
>>> 0000000000000400
>>> |
>>>
>>> I am not able to debug the problem. The setup was working fine till now.
>>> I am unable to understand what is cuasing such a behaviour. Please help.
>>>
>>>
>>> Thanks,
>>>
>>> Priyanka
>>>
>>>
>>>
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>>
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