api: '1.0'
astute_sha: 97eea90efe0a1f17b4934919d6e459d270c10372
auth_required: true
build_id: 2014-10-28_00-01-12
build_number: '53'
feature_groups:
- mirantis
- techpreview
fuellib_sha: b8d244a900b25bed8f597e99b309f9ee4ad8ae56
fuelmain_sha: f3ad22d12c26794a05e62d46317fa1e47f7f1138
nailgun_sha: fb18068382d522b735ecf446c0f4166c129269fb
ostf_sha: f47fd1d66a7255213ee075d5c11b8f111f922000
production: docker
release: '6.0'
Steps to reproduce:
1. Install 3 controllers in HA with 97 compute nodes on Ubuntu on Supermicro X9SRD-F/X9SRD-F, BIOS 3.0a 02/12/2014 nodes (mongodb + cinder + iscsi lvm)
after installation 2 controllers became high load and every 20 seconds shows kernel trace
<4>Oct 29 09:30:42 node-1 kernel: [50686.111314] ------------[ cut here ]------------
<4>Oct 29 09:30:42 node-1 kernel: [50686.111332] WARNING: CPU: 8 PID: 29151 at /build/buildd/linux-lts-saucy-3.11.0/fs/dcache.c:2561 prepend_path+0x1d4/0x1e0()
<4>Oct 29 09:30:42 node-1 kernel: [50686.111337] Root dentry has weird name <>
<4>Oct 29 09:30:42 node-1 kernel: [50686.111340] Modules linked in: xt_nat xt_conntrack xt_REDIRECT ipt_REJECT xt_tcpudp iscsi_target_mod target_core_mod configfs ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat iptable_mangle xt_mark veth xt_state xt_CT iptable_raw xt_comment xt_multiport ip6table_filter ip6_tables iptable_filter ip_tables x_tables openvswitch(OF) psmouse serio_raw gpio_ich nf_conntrack_ipv6 nf_defrag_ipv6 xfs mei_me nf_conntrack_ipv4 mei joydev nf_conntrack lpc_ich nf_defrag_ipv4 ioatdma wmi mac_hid lp parport igb ixgbe hid_generic i2c_algo_bit dca usbhid ahci ptp hid libahci mdio pps_core
<4>Oct 29 09:30:42 node-1 kernel: [50686.111427] CPU: 8 PID: 29151 Comm: netstat Tainted: GF W O 3.11.0-18-generic #32~precise1-Ubuntu
<4>Oct 29 09:30:42 node-1 kernel: [50686.111432] Hardware name: Supermicro X9SRD-F/X9SRD-F, BIOS 3.0a 02/12/2014
<4>Oct 29 09:30:42 node-1 kernel: [50686.111436] 0000000000000a01 ffff88040c4f5d48 ffffffff8173d60f 0000000000000007
<4>Oct 29 09:30:42 node-1 kernel: [50686.111446] ffff88040c4f5d98 ffff88040c4f5d88 ffffffff8106540c ffff88040c4f5df8
<4>Oct 29 09:30:42 node-1 kernel: [50686.111454] ffff88040c4f5eb8 0000000000000000 ffff880407413a40 ffff8805b4c6f020
<4>Oct 29 09:30:42 node-1 kernel: [50686.111464] Call Trace:
<4>Oct 29 09:30:42 node-1 kernel: [50686.111478] [<ffffffff8173d60f>] dump_stack+0x46/0x58
<4>Oct 29 09:30:42 node-1 kernel: [50686.111489] [<ffffffff8106540c>] warn_slowpath_common+0x8c/0xc0
<4>Oct 29 09:30:42 node-1 kernel: [50686.111497] [<ffffffff810654f6>] warn_slowpath_fmt+0x46/0x50
<4>Oct 29 09:30:42 node-1 kernel: [50686.111505] [<ffffffff811c9c24>] prepend_path+0x1d4/0x1e0
<4>Oct 29 09:30:42 node-1 kernel: [50686.111513] [<ffffffff811cb5a6>] d_path+0xf6/0x180
<4>Oct 29 09:30:42 node-1 kernel: [50686.111523] [<ffffffff8121c6cb>] proc_pid_readlink+0x9b/0xf0
<4>Oct 29 09:30:42 node-1 kernel: [50686.111532] [<ffffffff811ba1d6>] SyS_readlinkat+0xf6/0x120
<4>Oct 29 09:30:42 node-1 kernel: [50686.111540] [<ffffffff811ba21b>] SyS_readlink+0x1b/0x20
<4>Oct 29 09:30:42 node-1 kernel: [50686.111550] [<ffffffff817521dd>] system_call_fastpath+0x1a/0x1f
<4>Oct 29 09:30:42 node-1 kernel: [50686.111555] ---[ end trace 1e7c819e296b5a29 ]---
can't attache snapshot because
[root@fuel ~]# du -sh /var/log/
18G /var/log/
Installed and run 'atop -w atop.raw' at node-44.
Will attach results of several minutes of recording