Public bug reported:
Basically, the system completely logged up when this happened, we can see the
following trace on the console. Then we reset the box. The logs below are from
/var/log/kern.log
It's not reproducible at the moment. The issue happened when we tried to stop a
VM (qemu-system-x86) hosted on the box via OpenNebula VM management web
interface.
Is there a way to figure out if this is a known issue that fixed on
later kernel version?
root@node-101:~# cat /proc/version_signature
Ubuntu 3.13.0-32.57-generic 3.13.11.4
root@node-101:~# cat /etc/issue
Ubuntu 14.04.1 LTS \n \l
Mar 5 15:29:22 node-101 kernel: [18293149.767254] general protection fault:
[#1] SMP
Mar 5 15:29:22 node-101 kernel: [18293149.810640] Modules linked in:
ipmi_devintf ipmi_si nfnetlink bluetooth ebtable_filter vhost_net vhost macvtap
macvlan nbd ipt_MASQUERADE iptable_nat nf_nat_
ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack
ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp ip6table_filter ip6_tables
iptable_filter ip_tables ebtable_nat ebtables x_ta
bles bridge stp llc nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache
x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul
crc32_pclmul ghash_clmulni_intel aesni_intel gpi
o_ich aes_x86_64 sb_edac lrw gf128mul edac_core glue_helper mei_me ablk_helper
ioatdma mei joydev wmi cryptd lpc_ich mac_hid xfs libcrc32c lp parport raid10
raid456 async_raid6_recov async_memcpy
async_pq async_xor async_tx xor raid6_pq raid0 multipath linear raid1 igb
i2c_algo_bit isci dca hid_generic libsas usbhid ptp hid ahci libahci
scsi_transport_sas pps_core [last unloaded: ipmi_si]
Mar 5 15:29:22 node-101 kernel: [18293150.361734] CPU: 18 PID: 16236 Comm:
qemu-system-x86 Not tainted 3.13.0-32-generic #57-Ubuntu
Mar 5 15:29:22 node-101 kernel: [18293150.448654] Hardware name: Supermicro
SYS-F627R3-RTB+/X9DRFR, BIOS 3.0a 01/29/2014
Mar 5 15:29:22 node-101 kernel: [18293150.539953] task: 881026eadfc0 ti:
8813c7a84000 task.ti: 8813c7a84000
Mar 5 15:29:22 node-101 kernel: [18293150.629011] RIP:
0010:[811a4383] [811a4383]
__kmalloc_node_track_caller+0x173/0x290
Mar 5 15:29:22 node-101 kernel: [18293150.740566] RSP: 0018:8813c7a85bb8
EFLAGS: 00010246
Mar 5 15:29:22 node-101 kernel: [18293150.795788] RAX: RBX:
881dc796cd00 RCX: 012267b0
Mar 5 15:29:22 node-101 kernel: [18293150.904469] RDX: 012267af RSI:
RDI: 000172a0
Mar 5 15:29:22 node-101 kernel: [18293151.013444] RBP: 8813c7a85c00 R08:
88207fcd72a0 R09: 88103f803500
Mar 5 15:29:22 node-101 kernel: [18293151.121781] R10: 88103f803500 R11:
0293 R12: 000106d0
Mar 5 15:29:22 node-101 kernel: [18293151.230534] R13: 02c0 R14:
2d70757465732220 R15:
Mar 5 15:29:22 node-101 kernel: [18293151.337326] FS: 7f772b0ab980()
GS:88207fcc() knlGS:
Mar 5 15:29:22 node-101 kernel: [18293151.441748] CS: 0010 DS: ES:
CR0: 80050033
Mar 5 15:29:22 node-101 kernel: [18293151.484866] CR2: 7f747360 CR3:
002015c11000 CR4: 001427e0
Mar 5 15:29:22 node-101 kernel: [18293151.569286] Stack:
Mar 5 15:29:22 node-101 kernel: [18293151.613617] 8820217c9808
880b 88103f803500 81610e7e
Mar 5 15:29:22 node-101 kernel: [18293151.717684] 881dc796cd00
8813c7a85c5f 04d0 02c0
Mar 5 15:29:22 node-101 kernel: [18293151.818459]
8813c7a85c40 816104f1 81610e4e
Mar 5 15:29:22 node-101 kernel: [18293151.923644] Call Trace:
Mar 5 15:29:22 node-101 kernel: [18293151.974362] [81610e7e] ?
__alloc_skb+0x7e/0x2b0
Mar 5 15:29:22 node-101 kernel: [18293152.025346] [816104f1]
__kmalloc_reserve.isra.25+0x31/0x90
Mar 5 15:29:22 node-101 kernel: [18293152.073995] [81610e4e] ?
__alloc_skb+0x4e/0x2b0
Mar 5 15:29:22 node-101 kernel: [18293152.123817] [81610e7e]
__alloc_skb+0x7e/0x2b0
Mar 5 15:29:22 node-101 kernel: [18293152.171263] [8160beda]
sock_alloc_send_pskb+0x1aa/0x3e0
Mar 5 15:29:22 node-101 kernel: [18293152.216564] [816b6bcf]
unix_stream_sendmsg+0x26f/0x400
Mar 5 15:29:22 node-101 kernel: [18293152.262179] [81606b9e]
sock_aio_write+0xfe/0x130
Mar 5 15:29:22 node-101 kernel: [18293152.308666] [811bc3da]
do_sync_write+0x5a/0x90
Mar 5 15:29:22 node-101 kernel: [18293152.354563] [811bcc5d]
vfs_write+0x1ad/0x1f0
Mar 5 15:29:22 node-101 kernel: [18293152.398450] [811bd599]
SyS_write+0x49/0xa0
Mar 5 15:29:22 node-101 kernel: [18293152.440496] [8172c87f]
tracesys+0xe1/0xe6
Mar 5 15:29:22 node-101 kernel: [18293152.480144] Code: 4c 89 cf 44 89 e6 4c
89 4d c8 e8 69 a3 00 00 4c 8b 4d c8 49 89 c2 e9 01 ff ff ff 0f 1f 44 00 00 49
63 42 20 48 8d 4a 01 49 8b 3a 49 8b
