From mboxrd@z Thu Jan  1 00:00:00 1970
From: yue longguang <yuelongguang@gmail.com>
Subject: qemu-kvm process soft lockups cpu, results in server crash
Date: Wed, 20 Aug 2014 23:57:13 +0800
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hi, i encountered several times   my server crashes  because qemu-kvm
process locks up cpu.

at the front conntrack drop packets, but i have no idea  there is how
much relationship  between the stuck with dropping packets.

environment:
centos6.5  kernel 2.6.32-431.11.2 , x86_64,  qemu-kvm-tools-0.12

thanks
----------log-----------
Aug 18 22:07:05 localhost kernel: [4625821.185649] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:05 localhost kernel: [4625821.192085] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:05 localhost kernel: [4625821.198608] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:05 localhost kernel: [4625821.205021] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:05 localhost kernel: [4625821.211432] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:05 localhost kernel: [4625821.217874] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:05 localhost kernel: [4625821.224301] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:05 localhost kernel: [4625821.230764] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:05 localhost kernel: [4625821.237219] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:05 localhost kernel: [4625821.243664] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:05 localhost ./gbalancer-0.5.1[19991]: dial tcp
10.200.86.30:3306: i/o timeout
Aug 18 22:07:06 localhost ./gbalancer-0.5.1[19991]: dial tcp
10.200.86.31:3306: i/o timeout
Aug 18 22:07:06 localhost ./gbalancer-0.5.1[19991]: wrangler: detected
server 10.200.86.32:3306 is down
Aug 18 22:07:06 localhost ./gbalancer-0.5.1[19991]: wrangler: detected
server 10.200.86.31:3306 is down
Aug 18 22:07:06 localhost ./gbalancer-0.5.1[19991]: wrangler: detected
server 10.200.86.30:3306 is down
Aug 18 22:07:07 localhost kernel: [4625822.875756] ------------[ cut
here ]------------
Aug 18 22:07:07 localhost kernel: [4625822.881685] WARNING: at
net/sched/sch_generic.c:261 dev_watchdog+0x26b/0x280() (Not tainted)
Aug 18 22:07:07 localhost kernel: [4625822.892399] Hardware name: IBM
System x3550 M4: -[7914ON9]-
Aug 18 22:07:07 localhost kernel: [4625822.899346] NETDEV WATCHDOG:
eth0 (igb): transmit queue 0 timed out
Aug 18 22:07:07 localhost kernel: [4625822.907052] Modules linked in:
iptable_filter iptable_mangle iptable_nat nf_nat nf_conntrack_ipv4
nf_conntrack nf_defrag_ipv4 ip_tables tcp_diag inet_diag netconsole
xt_CHECKSUM configfs ip6table_filter ip6_tables ebtable_nat ebtables
cpufreq_ondemand acpi_cpufreq freq_table mperf ipmi_watchdog
ipmi_poweroff ipmi_devintf bridge bonding 8021q garp stp llc ipv6
vhost_net macvtap macvlan tun kvm_intel kvm cdc_ether usbnet mii
microcode iTCO_wdt iTCO_vendor_support igb dca i2c_algo_bit ptp
pps_core sg ics932s401 i2c_i801 i2c_core lpc_ich mfd_core shpchp ext4
jbd2 mbcache sd_mod crc_t10dif megaraid_sas wmi dm_mirror
dm_region_hash dm_log dm_mod [last unloaded: nf_conntrack]
Aug 18 22:07:07 localhost kernel: [4625822.979601] Pid: 0, comm:
swapper Not tainted 2.6.32-431.11.2.el6.x86_64 #1
Aug 18 22:07:07 localhost kernel: [4625822.988093] Call Trace:
Aug 18 22:07:07 localhost kernel: [4625822.991527]  <IRQ>
[<ffffffff81071e27>] ? warn_slowpath_common+0x87/0xc0
Aug 18 22:07:07 localhost kernel: [4625822.999861]
[<ffffffff81071f16>] ? warn_slowpath_fmt+0x46/0x50
Aug 18 22:07:07 localhost kernel: [4625823.007193]
[<ffffffff8147bc8b>] ? dev_watchdog+0x26b/0x280
Aug 18 22:07:07 localhost kernel: [4625823.014239]
[<ffffffff8105dd5c>] ? scheduler_tick+0xcc/0x260
Aug 18 22:07:07 localhost kernel: [4625823.021369]
[<ffffffff8147ba20>] ? dev_watchdog+0x0/0x280
Aug 18 22:07:07 localhost kernel: [4625823.028204]
[<ffffffff81084ae7>] ? run_timer_softirq+0x197/0x340
Aug 18 22:07:07 localhost kernel: [4625823.035716]
[<ffffffff810ac8e5>] ? tick_dev_program_event+0x65/0xc0
Aug 18 22:07:07 localhost kernel: [4625823.043526]
[<ffffffff8107a8e1>] ? __do_softirq+0xc1/0x1e0
Aug 18 22:07:07 localhost kernel: [4625823.050447]
[<ffffffff810ac9ba>] ? tick_program_event+0x2a/0x30
Aug 18 22:07:07 localhost kernel: [4625823.057877]
[<ffffffff8100c30c>] ? call_softirq+0x1c/0x30
Aug 18 22:07:07 localhost kernel: [4625823.064744]
[<ffffffff8100fa75>] ? do_softirq+0x65/0xa0
Aug 18 22:07:07 localhost kernel: [4625823.071385]
[<ffffffff8107a795>] ? irq_exit+0x85/0x90
Aug 18 22:07:07 localhost kernel: [4625823.077831]
[<ffffffff815316ca>] ? smp_apic_timer_interrupt+0x4a/0x60
Aug 18 22:07:07 localhost kernel: [4625823.085832]
[<ffffffff8100bb93>] ? apic_timer_interrupt+0x13/0x20
Aug 18 22:07:07 localhost kernel: [4625823.093612]  <EOI>
[<ffffffff812e0bee>] ? intel_idle+0xde/0x170
Aug 18 22:07:07 localhost kernel: [4625823.101047]
[<ffffffff812e0bd1>] ? intel_idle+0xc1/0x170
Aug 18 22:07:07 localhost kernel: [4625823.107876]
[<ffffffff81426b67>] ? cpuidle_idle_call+0xa7/0x140
Aug 18 22:07:07 localhost kernel: [4625823.115287]
[<ffffffff81009fc6>] ? cpu_idle+0xb6/0x110
Aug 18 22:07:07 localhost kernel: [4625823.121822]
[<ffffffff8152143c>] ? start_secondary+0x2ac/0x2ef
Aug 18 22:07:07 localhost kernel: [4625823.129159] ---[ end trace
3e53505863a74c35 ]---
Aug 18 22:07:07 localhost kernel: [4625823.135043] igb 0000:06:00.0:
eth0: Reset adapter
Aug 18 22:07:10 localhost kernel: [4625826.197602] __ratelimit: 15954
callbacks suppressed
Aug 18 22:07:10 localhost kernel: [4625826.203755] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:10 localhost kernel: [4625826.209776] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:10 localhost kernel: [4625826.216618] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:10 localhost kernel: [4625826.223058] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:10 localhost kernel: [4625826.225259] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:10 localhost kernel: [4625826.229904] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:10 localhost kernel: [4625826.242437] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:10 localhost kernel: [4625826.248949] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:10 localhost kernel: [4625826.249993] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:10 localhost kernel: [4625826.254420] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:19 localhost kernel: [4625835.694873] __ratelimit: 1109
callbacks suppressed
Aug 18 22:07:19 localhost kernel: [4625835.700911] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:19 localhost kernel: [4625835.707357] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:19 localhost kernel: [4625835.713826] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:19 localhost kernel: [4625835.720248] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:19 localhost kernel: [4625835.726672] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:19 localhost kernel: [4625835.733121] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:19 localhost kernel: [4625835.739560] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:19 localhost kernel: [4625835.746123] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:19 localhost kernel: [4625835.752608] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:19 localhost kernel: [4625835.757026] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:24 localhost kernel: [4625840.712593] __ratelimit: 11940
callbacks suppressed
Aug 18 22:07:24 localhost kernel: [4625840.718738] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:24 localhost kernel: [4625840.725212] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:24 localhost kernel: [4625840.731652] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:24 localhost kernel: [4625840.738086] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:24 localhost kernel: [4625840.744529] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:24 localhost kernel: [4625840.750978] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:24 localhost kernel: [4625840.757409] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:24 localhost kernel: [4625840.763828] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:24 localhost kernel: [4625840.770271] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:24 localhost kernel: [4625840.776721] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:29 localhost kernel: [4625845.730717] __ratelimit: 18046
callbacks suppressed
Aug 18 22:07:29 localhost kernel: [4625845.736873] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:29 localhost kernel: [4625845.743314] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:29 localhost kernel: [4625845.749743] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:29 localhost kernel: [4625845.756185] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:29 localhost kernel: [4625845.762596] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:29 localhost kernel: [4625845.764945] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:29 localhost kernel: [4625845.775440] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:29 localhost kernel: [4625845.781852] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:29 localhost kernel: [4625845.788274] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:29 localhost kernel: [4625845.794689] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:34 localhost kernel: [4625850.748324] __ratelimit: 13859
callbacks suppressed
Aug 18 22:07:34 localhost kernel: [4625850.754473] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:34 localhost kernel: [4625850.760912] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:34 localhost kernel: [4625850.767355] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:34 localhost kernel: [4625850.773785] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:34 localhost kernel: [4625850.780194] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:34 localhost kernel: [4625850.786603] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:34 localhost kernel: [4625850.788315] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:34 localhost kernel: [4625850.799479] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:34 localhost kernel: [4625850.806011] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:34 localhost kernel: [4625850.812449] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:39 localhost kernel: [4625855.765952] __ratelimit: 16520
callbacks suppressed
Aug 18 22:07:39 localhost kernel: [4625855.772086] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:39 localhost kernel: [4625855.778403] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:39 localhost kernel: [4625855.785009] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:39 localhost kernel: [4625855.791432] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:39 localhost kernel: [4625855.797847] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:39 localhost kernel: [4625855.798173] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:39 localhost kernel: [4625855.801371] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:39 localhost kernel: [4625855.804182] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:39 localhost kernel: [4625855.823520] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:39 localhost kernel: [4625855.829961] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:44 localhost kernel: [4625860.782762] __ratelimit: 18321
callbacks suppressed
Aug 18 22:07:44 localhost kernel: [4625860.788892] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:44 localhost kernel: [4625860.795310] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:44 localhost kernel: [4625860.801746] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:44 localhost kernel: [4625860.808255] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:44 localhost kernel: [4625860.814675] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:44 localhost kernel: [4625860.821092] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:44 localhost kernel: [4625860.827506] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:44 localhost kernel: [4625860.833936] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:44 localhost kernel: [4625860.840264] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:44 localhost kernel: [4625860.846775] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:49 localhost kernel: [4625865.800595] __ratelimit: 17216
callbacks suppressed
Aug 18 22:07:49 localhost kernel: [4625865.806719] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:49 localhost kernel: [4625865.806722] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:49 localhost kernel: [4625865.806733] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:49 localhost kernel: [4625865.806739] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:49 localhost kernel: [4625865.806759] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:49 localhost kernel: [4625865.806765] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:49 localhost kernel: [4625865.806770] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:49 localhost kernel: [4625865.806784] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:49 localhost kernel: [4625865.806798] nf_conntrack: table
full, dropping packet.
Aug 18 22:07:49 localhost kernel: [4625865.806805] nf_conntrack: table
full, dropping packet.
Aug 18 22:08:04 localhost ./gbalancer-0.5.1[19991]: dial tcp
10.200.86.32:3306: i/o timeout
Aug 18 22:08:05 localhost ./gbalancer-0.5.1[19991]: dial tcp
10.200.86.30:3306: i/o timeout
Aug 18 22:08:10 localhost kernel: [4625886.328279] BUG: soft lockup -
CPU#2 stuck for 67s! [qemu-kvm:14228]
Aug 18 22:08:10 localhost kernel: [4625886.336065] Modules linked in:
iptable_filter iptable_mangle iptable_nat nf_nat nf_conntrack_ipv4
nf_conntrack nf_defrag_ipv4 ip_tables tcp_diag inet_diag netconsole
xt_CHECKSUM configfs ip6table_filter ip6_tables ebtable_nat ebtables
cpufreq_ondemand acpi_cpufreq freq_table mperf ipmi_watchdog
ipmi_poweroff ipmi_devintf bridge bonding 8021q garp stp llc ipv6
vhost_net macvtap macvlan tun kvm_intel kvm cdc_ether usbnet mii
microcode iTCO_wdt iTCO_vendor_support igb dca i2c_algo_bit ptp
pps_core sg ics932s401 i2c_i801 i2c_core lpc_ich mfd_core shpchp ext4
jbd2 mbcache sd_mod crc_t10dif megaraid_sas wmi dm_mirror
dm_region_hash dm_log dm_mod [last unloaded: nf_conntrack]
Aug 18 22:08:10 localhost kernel: [4625886.407910] CPU 2
Aug 18 22:08:10 localhost kernel: [4625886.410165] Modules linked in:
iptable_filter iptable_mangle iptable_nat nf_nat nf_conntrack_ipv4
nf_conntrack nf_defrag_ipv4 ip_tables tcp_diag inet_diag netconsole
xt_CHECKSUM configfs ip6table_filter ip6_tables ebtable_nat ebtables
cpufreq_ondemand acpi_cpufreq freq_table mperf ipmi_watchdog
ipmi_poweroff ipmi_devintf bridge bonding 8021q garp stp llc ipv6
vhost_net macvtap macvlan tun kvm_intel kvm cdc_ether usbnet mii
microcode iTCO_wdt iTCO_vendor_support igb dca i2c_algo_bit ptp
pps_core sg ics932s401 i2c_i801 i2c_core lpc_ich mfd_core shpchp ext4
jbd2 mbcache sd_mod crc_t10dif megaraid_sas wmi dm_mirror
dm_region_hash dm_log dm_mod [last unloaded: nf_conntrack]
Aug 18 22:08:10 localhost kernel: [4625886.482600]
Aug 18 22:08:10 localhost kernel: [4625886.484924] Pid: 14228, comm:
qemu-kvm Tainted: G        W  ---------------
2.6.32-431.11.2.el6.x86_64 #1 IBM IBM System x3550 M4:
-[7914ON9]-/00AM544
Aug 18 22:08:10 localhost kernel: [4625886.501451] RIP:
0010:[<ffffffff810b31e0>]  [<ffffffff810b31e0>]
generic_exec_single+0x90/0xc0
Aug 18 22:08:10 localhost kernel: [4625886.512238] RSP:
0018:ffff881af4f91ac8  EFLAGS: 00000202
Aug 18 22:08:10 localhost kernel: [4625886.518845] RAX:
0000000000000018 RBX: ffff881af4f91b08 RCX: 0000000000000028
Aug 18 22:08:10 localhost kernel: [4625886.527944] RDX:
0000000000ffffff RSI: 0000000000000018 RDI: 0000000000000292
Aug 18 22:08:10 localhost kernel: [4625886.537055] RBP:
ffffffff8100bb8e R08: ffffffff8160cee0 R09: 0000000000000000
Aug 18 22:08:10 localhost kernel: [4625886.546159] R10:
0000000000000000 R11: 0000000000000000 R12: ffffffff81059b21
Aug 18 22:08:10 localhost kernel: [4625886.555266] R13:
ffff881af4f91a68 R14: 00106f269412798d R15: 0000000000003e81
Aug 18 22:08:10 localhost kernel: [4625886.564363] FS:
00007fc766546700(0000) GS:ffff880028240000(0000)
knlGS:0000000000000000
Aug 18 22:08:10 localhost kernel: [4625886.574536] CS:  0010 DS: 002b
ES: 002b CR0: 000000008005003b
Aug 18 22:08:10 localhost kernel: [4625886.581626] CR2:
00007fffe8386f88 CR3: 0000001fc9649000 CR4: 00000000001427e0
Aug 18 22:08:10 localhost kernel: [4625886.590760] DR0:
0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Aug 18 22:08:10 localhost kernel: [4625886.599894] DR3:
0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Aug 18 22:08:10 localhost kernel: [4625886.620334] Process qemu-kvm
(pid: 14228, threadinfo ffff881af4f90000, task ffff881af4dc5500)
Aug 18 22:08:10 localhost kernel: [4625886.631033] Stack:
Aug 18 22:08:10 localhost kernel: [4625886.633962]  0000000000000282
ffff8800282117e0 0000000000000002 0000000000000000
Aug 18 22:08:10 localhost kernel: [4625886.642784] <d>
ffffffffa0215ba0 0000000000000002 ffffffff81c066c0 ffff881af4dc5500
Aug 18 22:08:10 localhost kernel: [4625886.652611] <d>
ffff881af4f91b78 ffffffff810b3442 ffff881af4f91b48 ffff880028256840
Aug 18 22:08:10 localhost kernel: [4625886.663116] Call Trace:
Aug 18 22:08:10 localhost kernel: [4625886.666543]
[<ffffffffa0215ba0>] ? __vcpu_clear+0x0/0xb0 [kvm_intel]
Aug 18 22:08:10 localhost kernel: [4625886.674435]
[<ffffffff810b3442>] ? smp_call_function_single+0x152/0x160
Aug 18 22:08:10 localhost kernel: [4625886.682714]
[<ffffffffa0215ba0>] ? __vcpu_clear+0x0/0xb0 [kvm_intel]
Aug 18 22:08:10 localhost kernel: [4625886.690612]
[<ffffffffa0215eca>] ? vmx_vcpu_load+0x17a/0x1a0 [kvm_intel]
Aug 18 22:08:10 localhost kernel: [4625886.698903]
[<ffffffffa01b6979>] ? kvm_arch_vcpu_load+0x29/0x140 [kvm]
Aug 18 22:08:10 localhost kernel: [4625886.706994]
[<ffffffffa01add15>] ? vcpu_load+0x55/0x80 [kvm]
Aug 18 22:08:10 localhost kernel: [4625886.714114]
[<ffffffffa01addbd>] ? kvm_vcpu_block+0x7d/0xc0 [kvm]
Aug 18 22:08:10 localhost kernel: [4625886.721714]
[<ffffffff8109b290>] ? autoremove_wake_function+0x0/0x40
Aug 18 22:08:10 localhost kernel: [4625886.729613]
[<ffffffffa01c23d7>] ? kvm_arch_vcpu_ioctl_run+0x627/0x10b0 [kvm]
Aug 18 22:08:10 localhost kernel: [4625886.738845]
[<ffffffffa01a9b04>] ? kvm_vcpu_ioctl+0x434/0x580 [kvm]
Aug 18 22:08:10 localhost kernel: [4625886.746632]
[<ffffffff8100bb8e>] ? apic_timer_interrupt+0xe/0x20
Aug 18 22:08:10 localhost kernel: [4625886.754119]
[<ffffffff8119dc12>] ? vfs_ioctl+0x22/0xa0
Aug 18 22:08:10 localhost kernel: [4625886.760644]
[<ffffffff8119e0da>] ? do_vfs_ioctl+0x3aa/0x580
Aug 18 22:08:10 localhost kernel: [4625886.767652]
[<ffffffffa01b66ab>] ? kvm_on_user_return+0x7b/0x90 [kvm]
Aug 18 22:08:10 localhost kernel: [4625886.775618]
[<ffffffff8119e331>] ? sys_ioctl+0x81/0xa0
Aug 18 22:08:10 localhost kernel: [4625886.782219]
[<ffffffff8100b072>] ? system_call_fastpath+0x16/0x1b
Aug 18 22:08:10 localhost kernel: [4625886.789785] Code: c0 4c 89 ef
48 89 c6 e8 9f 77 47 00 48 3b 5d c8 74 31 45 85 ff 75 0e 0f 1f 40 00
eb 10 66 0f 1f 44 00 00 f3 90 41 f6 44 24 20 01 <75> f6 48 8b 5d d8 4c
8b 65 e0 4c 8b 6d e8 4c 8b 75 f0 4c 8b 7d
Aug 18 22:08:10 localhost kernel: [4625886.813729] Call Trace:
Aug 18 22:08:10 localhost kernel: [4625886.817121]
[<ffffffff810b3201>] ? generic_exec_single+0xb1/0xc0
Aug 18 22:08:10 localhost kernel: [4625886.824617]
[<ffffffffa0215ba0>] ? __vcpu_clear+0x0/0xb0 [kvm_intel]
Aug 18 22:08:10 localhost kernel: [4625886.832496]
[<ffffffff810b3442>] ? smp_call_function_single+0x152/0x160
Aug 18 22:08:10 localhost kernel: [4625886.840655]
[<ffffffffa0215ba0>] ? __vcpu_clear+0x0/0xb0 [kvm_intel]
Aug 18 22:08:10 localhost kernel: [4625886.848541]
[<ffffffffa0215eca>] ? vmx_vcpu_load+0x17a/0x1a0 [kvm_intel]
Aug 18 22:08:10 localhost kernel: [4625886.856825]
[<ffffffffa01b6979>] ? kvm_arch_vcpu_load+0x29/0x140 [kvm]
Aug 18 22:08:10 localhost kernel: [4625886.864913]
[<ffffffffa01add15>] ? vcpu_load+0x55/0x80 [kvm]
Aug 18 22:08:10 localhost kernel: [4625886.871998]
[<ffffffffa01addbd>] ? kvm_vcpu_block+0x7d/0xc0 [kvm]
Aug 18 22:08:10 localhost kernel: [4625886.879568]
[<ffffffff8109b290>] ? autoremove_wake_function+0x0/0x40
Aug 18 22:08:10 localhost kernel: [4625886.887439]
[<ffffffffa01c23d7>] ? kvm_arch_vcpu_ioctl_run+0x627/0x10b0 [kvm]
Aug 18 22:08:10 localhost kernel: [4625886.896716]
[<ffffffffa01a9b04>] ? kvm_vcpu_ioctl+0x434/0x580 [kvm]
Aug 18 22:08:10 localhost kernel: [4625886.904483]
[<ffffffff8100bb8e>] ? apic_timer_interrupt+0xe/0x20
Aug 18 22:08:10 localhost kernel: [4625886.911957]
[<ffffffff8119dc12>] ? vfs_ioctl+0x22/0xa0
Aug 18 22:08:10 localhost kernel: [4625886.918460]
[<ffffffff8119e0da>] ? do_vfs_ioctl+0x3aa/0x580
Aug 18 22:08:10 localhost kernel: [4625886.925449]
[<ffffffffa01b66ab>] ? kvm_on_user_return+0x7b/0x90 [kvm]
Aug 18 22:08:10 localhost kernel: [4625886.933409]
[<ffffffff8119e331>] ? sys_ioctl+0x81/0xa0
Aug 18 22:08:10 localhost kernel: [4625886.939908]
[<ffffffff8100b072>] ? system_call_fastpath+0x16/0x1b
Aug 18 22:21:36 localhost kernel: imklog 5.8.10, log source =
/proc/kmsg started.
Aug 18 22:21:36 localhost rsyslogd: [origin software="rsyslogd"
swVersion="5.8.10" x-pid="2205" x-info="http://www.rsyslog.com"] start