<div dir="ltr"><div><div>Hi,<br></div><div><br>When were the node crashed?<br>How about other two nodes?<br></div>Is there any difference between crashed node and others in terms of not only hardware but also software?<br><br></div> - Kinjo<br><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Jun 2, 2015 at 3:31 PM, Priyanka <span dir="ltr"><<a href="mailto:ppnaik@cse.iitb.ac.in" target="_blank">ppnaik@cse.iitb.ac.in</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Sir,<br>
<br>
uname -r<br>
<br>
3.10.0-123.13.2.el7.x86_64<br>
<br>
I have stopped iptables services since the start. So, should I still follow what they have mentioned in the 5th comment?<br>
<br>
Thanks,<br>
<br>
Priyanka<br>
<br>
<br>
On Tuesday 02 June 2015 11:49 AM, Matt Taylor wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi Priyanka,<br>
<br>
Are you using an old kernel ('uname -r' please)? I've seen issues with unlink_anon_vmas in Fedora, so this is rather interesting.<br>
<br>
In regards to the 2nd kernel panic, it indicates that it's due to iptables and get_counters.<br>
<br>
It's possibly related to this:<br>
<br>
<a href="https://bugzilla.redhat.com/show_bug.cgi?id=1089569" target="_blank">https://bugzilla.redhat.com/show_bug.cgi?id=1089569</a><br>
<br>
Might be worth trying what was mentioned in the 5th comment.<br>
<br>
Regards,<br>
Matt.<br>
<br>
On 2/06/2015 15:14, Priyanka wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi,<br>
<br>
I have an Openstack Juno setup with one controller node and 3 compute<br>
nodes. I installed it using packstack on centOS 7. One of the compute<br>
node crashed twice. First crash was two days back and second one today.<br>
It automatically restarts after the crash. The crash log in /var/crash<br>
were different in both the instances.<br>
<br>
Crash 1 log:<br>
<br>
|CPU: 5 PID: 16617 Comm: pickupNot tainted3.10.0-123.13.2.el7.x86_64#1<br>
[11971.208387] Hardware name: Intel Corporation S2600CP/S2600CP, BIOS SE5C600.86B.02.02.0002.122320131210 12/23/2013<br>
[11971.208389] ffff8807de2b1cc800000000a2deb902 ffff8807de2b1c80 ffffffff815e232c<br>
[11971.208392] ffff8807de2b1cb8 ffffffff8105dee1 ffff8807f8e85f50 ffff8807f8e85f40<br>
[11971.208394] ffff8807f90db0c0 ffff8807f8e85f50 ffff8807f90db0c0 ffff8807de2b1d20<br>
[11971.208396] Call Trace:<br>
[11971.208401] [<ffffffff815e232c>] dump_stack+0x19/0x1b<br>
[11971.208405] [<ffffffff8105dee1>] warn_slowpath_common+0x61/0x80<br>
[11971.208408] [<ffffffff8105df5c>] warn_slowpath_fmt+0x5c/0x80<br>
[11971.208410] [<ffffffff812cff82>] __list_del_entry+0x82/0xd0<br>
[11971.208412] [<ffffffff812cffdd>] list_del+0xd/0x30<br>
[11971.208415] [<ffffffff811776a3>] unlink_anon_vmas+0x93/0x180<br>
[11971.208418] [<ffffffff81168b88>] free_pgtables+0xa8/0x120<br>
[11971.208420] [<ffffffff81173556>] exit_mmap+0xc6/0x1a0<br>
[11971.208422] [<ffffffff8105b187>] mmput+0x67/0xf0<br>
[11971.208424] [<ffffffff81063dac>] do_exit+0x28c/0xa60<br>
[11971.208426] [<ffffffff810645ff>] do_group_exit+0x3f/0xa0<br>
[11971.208428] [<ffffffff81064674>] SyS_exit_group+0x14/0x20<br>
[11971.208431] [<ffffffff815f2a19>] system_call_fastpath+0x16/0x1b<br>
[11971.208432] ---[ end trace ebed116bce4ce8eb]---<br>
[11971.208437] BUG: unable to handle kernel NULL pointer dereference at(null)<br>
[11971.208471] IP: [<ffffffff81177663>] unlink_anon_vmas+0x53/0x180<br>
[11971.208493] PGD0<br>
[11971.208502] Oops: 0000 [#1] SMP|<br>
<br>
Crash 2 log:<br>
<br>
|[321808.123092] BUG: unable to handle kernel paging request at ffffc90017456008<br>
[321808.123122] IP: [<ffffffffa03a8521>] get_counters+0x91/0xd0 [ip_tables]<br>
[321808.123146] PGD81d437067 PUD81d4a4067 PMD7ec309067 PTE0<br>
[321808.123167] Oops: 0002 [#1] SMP<br>
[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<br>
f crct10d<br>
<br>
if_common mgag200 syscopyarea sysfillrect<br>
[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]<br>
[321808.123521] CPU: 10 PID: 110268 Comm: iptables-saveNot tainted3.10.0-123.13.2.el7.x86_64#1<br>
[321808.123547] Hardware name: Intel Corporation S2600CP/S2600CP, BIOS SE5C600.86B.02.02.0002.122320131210 12/23/2013<br>
[321808.123577] task: ffff88080a8f38e0 ti: ffff8807ed398000 task.ti: ffff8807ed398000<br>
[321808.123599] RIP: 0010:[<ffffffffa03a8521>] [<ffffffffa03a8521>] get_counters+0x91/0xd0 [ip_tables]<br>
[321808.123627] RSP: 0018:ffff8807ed399da8 EFLAGS: 00010286<br>
[321808.123643] RAX: ffffc90014ab72e8 RBX: 0000000000010380 RCX: ffffc90017456000<br>
[321808.123664] RDX: 0000000000000054 RSI: 0000000000000000 RDI: ffff88081e290380<br>
[321808.123685] RBP: ffff8807ed399dc8 R08: 0000000000000101 R09: ffff8807ed96caa0<br>
[321808.123706] R10: 0000000000000000 R11: ffffffff8117b2e8 R12: ffffffff819e4aa0<br>
[321808.123727] R13: ffff8807ed96c800 R14: ffffc90017455000 R15: ffff88080c961ba0<br>
[321808.123748] FS: 00007fdcc2078740(0000) GS:ffff88081d940000(0000) knlGS:0000000000000000<br>
[321808.123772] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033<br>
||[321808.123789] CR2: ffffc90017456008 CR3: 00000007ec30e000 CR4: 00000000001427e0<br>
[321808.123810] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000<br>
[321808.123831] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400<br>
|<br>
<br>
I am not able to debug the problem. The setup was working fine till now.<br>
I am unable to understand what is cuasing such a behaviour. Please help.<br>
<br>
<br>
Thanks,<br>
<br>
Priyanka<br>
<br>
<br>
<br>
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<br>
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<br>
<br>
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</blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><a href="http://i-shinobu.hatenablog.com/" target="_blank">Life w/ Linux</a><br></div></div></div></div></div>
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