はじめてのにき

_ Array#|

なんか体感として異様に遅い印象のあるメソッドなので、 O(N^2) とかになってるんじゃないかねーと思ってたんだけど、 今見てみたら普通に O(N) だった。

ハッシュ構築してから削除しつつ push してくのかぁ。 空のハッシュに挿入しつつ push してく方が自然な気もするけど、 まぁいずれにせよたいした差はなさげ。

そもそもこんなもんゴルフ人間しか使ってない気もする

(12:21)

_ .hash

Histogram for bucket list length in section [ 7] '.hash' (total of 257 buckets):

 Addr: 0x00000001000022a0  Offset: 0x0022a0  Link to section: [ 5] '.dynsym'
 Length  Number  % of total  Coverage
      0     237       92.2%
      1      20        7.8%    100.0%
 Average number of tests:   successful lookup: 1.000000
                          unsuccessful lookup: 0.077821

よく見るとこれおかしすぎるんじゃないかとメモ

(15:49)

_ マシンがヘンな状態でしんだ

emacs は元気に動いてるけど端末の入力の反応はすごく遅いか ほとんど反応無いし、 コマンドの発行もすごく時間がかかって成功するかしないかという感じだった。 emacs からの shell はそれなりに動いてたので、 適当にあやしい子を殺したりしてたけど、 まぁいずれ emacs もコマンド出せなくなった。

適当に syslog を見るとなんかあやしいこと言われてるな。

Aug  8 19:27:50 u4 kernel: [33951.653025] BUG: soft lockup - CPU#1 stuck for 409
6s! [chrome:8780]
Aug  8 19:27:50 u4 kernel: [33951.653032] Modules linked in: binfmt_misc ppdev l
p parport sco bnep l2cap crc16 bluetooth bridge stp xen_evtchn xenfs uinput hdap
s input_polldev cpufreq_conservative cpufreq_userspace cpufreq_stats cpufreq_pow
ersave fuse dm_snapshot dm_mirror dm_region_hash dm_log firewire_sbp2 loop snd_h
da_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_os
s snd_pcm snd_seq_midi arc4 ecb snd_rawmidi snd_seq_midi_event iwl3945 snd_seq i
wlcore i915 joydev drm_kms_helper snd_timer mac80211 thinkpad_acpi pcmcia snd_se
q_device drm cfg80211 yenta_socket rsrc_nonstatic evdev i2c_algo_bit psmouse pcs
pkr tpm_tis processor rfkill battery video ac pcmcia_core serio_raw tpm snd acpi
_processor nvram tpm_bios i2c_i801 i2c_core output soundcore snd_page_alloc butt
on usbhid hid ext3 jbd mbcache dm_mod sg sr_mod sd_mod crc_t10dif cdrom ata_gene
ric sdhci_pci sdhci ata_piix ahci firewire_ohci uhci_hcd ehci_hcd libata mmc_cor
e led_class ricoh_mmc scsi_mod firewire_core crc_itu_t tg3 the
Aug  8 19:27:50 u4 kernel: mal thermal_sys libphy usbcore nls_base [last unloade
d: scsi_wait_scan]
Aug  8 19:27:50 u4 kernel: [33951.653308] CPU 1:
Aug  8 19:27:50 u4 kernel: [33951.653314] Modules linked in: binfmt_misc ppdev l
p parport sco bnep l2cap crc16 bluetooth bridge stp xen_evtchn xenfs uinput hdap
s input_polldev cpufreq_conservative cpufreq_userspace cpufreq_stats cpufreq_pow
ersave fuse dm_snapshot dm_mirror dm_region_hash dm_log firewire_sbp2 loop snd_h
da_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_os
s snd_pcm snd_seq_midi arc4 ecb snd_rawmidi snd_seq_midi_event iwl3945 snd_seq i
wlcore i915 joydev drm_kms_helper snd_timer mac80211 thinkpad_acpi pcmcia snd_se
q_device drm cfg80211 yenta_socket rsrc_nonstatic evdev i2c_algo_bit psmouse pcs
pkr tpm_tis processor rfkill battery video ac pcmcia_core serio_raw tpm snd acpi
_processor nvram tpm_bios i2c_i801 i2c_core output soundcore snd_page_alloc butt
on usbhid hid ext3 jbd mbcache dm_mod sg sr_mod sd_mod crc_t10dif cdrom ata_gene
ric sdhci_pci sdhci ata_piix ahci firewire_ohci uhci_hcd ehci_hcd libata mmc_cor
e led_class ricoh_mmc scsi_mod firewire_core crc_itu_t tg3 the
Aug  8 19:27:50 u4 kernel: mal thermal_sys libphy usbcore nls_base [last unloade
d: scsi_wait_scan]
Aug  8 19:27:50 u4 kernel: [33951.653571] Pid: 8780, comm: chrome Not tainted 2.
6.32-5-xen-amd64 #1 8932J15
Aug  8 19:27:50 u4 kernel: [33951.653576] RIP: e030:[<ffffffff810cd385>]  [<ffff
ffff810cd385>] unmap_vmas+0x571/0x942
Aug  8 19:27:50 u4 kernel: [33951.653591] RSP: e02b:ffff8800b163dd88  EFLAGS: 00
000246
Aug  8 19:27:50 u4 kernel: [33951.653597] RAX: 0000000000000000 RBX: 8000000073e
5d100 RCX: 00000000080000fb
Aug  8 19:27:50 u4 kernel: [33951.653603] RDX: ffff88006594ac88 RSI: 00007f14291
91000 RDI: ffff8800af1bdc00
Aug  8 19:27:50 u4 kernel: [33951.653609] RBP: 00007f1429191000 R08: ffff8800167
72e70 R09: 0000000000000000
Aug  8 19:27:50 u4 kernel: [33951.653615] R10: 0000000000000120 R11: 00000000000
00120 R12: ffffea0001d9e458
Aug  8 19:27:50 u4 kernel: [33951.653620] R13: 8000000073e5d167 R14: ffff8800167
72e70 R15: 000000000025e000
Aug  8 19:27:50 u4 kernel: [33951.653634] FS:  00007f1459fe37e0(0000) GS:ffff880
003cd4000(0000) knlGS:0000000000000000
Aug  8 19:27:50 u4 kernel: [33951.653640] CS:  e033 DS: 0000 ES: 0000 CR0: 00000
0008005003b
Aug  8 19:27:50 u4 kernel: [33951.653645] CR2: 0000000001f8d024 CR3: 00000000aed
4d000 CR4: 0000000000002660
Aug  8 19:27:50 u4 kernel: [33951.653652] DR0: 0000000000000000 DR1: 00000000000
00000 DR2: 0000000000000000
Aug  8 19:27:50 u4 kernel: [33951.653658] DR3: 0000000000000000 DR6: 00000000fff
f4ff0 DR7: 0000000000000400
Aug  8 19:27:50 u4 kernel: [33951.653664] Call Trace:
Aug  8 19:27:50 u4 kernel: [33951.653673]  [<ffffffff810cd2bf>] ? unmap_vmas+0x4
ab/0x942
Aug  8 19:27:50 u4 kernel: [33951.653683]  [<ffffffff810d1840>] ? unmap_region+0
xb2/0x132
Aug  8 19:27:50 u4 kernel: [33951.653692]  [<ffffffff810d290a>] ? do_munmap+0x2b
d/0x32b
Aug  8 19:27:50 u4 kernel: [33951.653701]  [<ffffffff8114a076>] ? sys_shmdt+0x9d
/0x123
Aug  8 19:27:50 u4 kernel: [33951.653710]  [<ffffffff81011b42>] ? system_call_fa
stpath+0x16/0x1b
Aug  8 19:27:50 u4 kernel: [33951.653727] BUG: soft lockup - CPU#0 stuck for 409
6s! [apache2:8789]
Aug  8 19:27:50 u4 kernel: [33951.653727] Modules linked in: binfmt_misc ppdev l
p parport sco bnep l2cap crc16 bluetooth bridge stp xen_evtchn xenfs uinput hdap
s input_polldev cpufreq_conservative cpufreq_userspace cpufreq_stats cpufreq_pow
ersave fuse dm_snapshot dm_mirror dm_region_hash dm_log firewire_sbp2 loop snd_h
da_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_os
s snd_pcm snd_seq_midi arc4 ecb snd_rawmidi snd_seq_midi_event iwl3945 snd_seq i
wlcore i915 joydev drm_kms_helper snd_timer mac80211 thinkpad_acpi pcmcia snd_se
q_device drm cfg80211 yenta_socket rsrc_nonstatic evdev i2c_algo_bit psmouse pcs
pkr tpm_tis processor rfkill battery video ac pcmcia_core serio_raw tpm snd acpi
_processor nvram tpm_bios i2c_i801 i2c_core output soundcore snd_page_alloc butt
on usbhid hid ext3 jbd mbcache dm_mod sg sr_mod sd_mod crc_t10dif cdrom ata_gene
ric sdhci_pci sdhci ata_piix ahci firewire_ohci uhci_hcd ehci_hcd libata mmc_cor
e led_class ricoh_mmc scsi_mod firewire_core crc_itu_t tg3 the
Aug  8 19:27:50 u4 kernel: mal thermal_sys libphy usbcore nls_base [last unloade
d: scsi_wait_scan]
Aug  8 19:27:50 u4 kernel: [33951.653727] CPU 0:
Aug  8 19:27:50 u4 kernel: [33951.653727] Modules linked in: binfmt_misc ppdev l
p parport sco bnep l2cap crc16 bluetooth bridge stp xen_evtchn xenfs uinput hdap
s input_polldev cpufreq_conservative cpufreq_userspace cpufreq_stats cpufreq_pow
ersave fuse dm_snapshot dm_mirror dm_region_hash dm_log firewire_sbp2 loop snd_h
da_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_os
s snd_pcm snd_seq_midi arc4 ecb snd_rawmidi snd_seq_midi_event iwl3945 snd_seq i
wlcore i915 joydev drm_kms_helper snd_timer mac80211 thinkpad_acpi pcmcia snd_se
q_device drm cfg80211 yenta_socket rsrc_nonstatic evdev i2c_algo_bit psmouse pcs
pkr tpm_tis processor rfkill battery video ac pcmcia_core serio_raw tpm snd acpi
_processor nvram tpm_bios i2c_i801 i2c_core output soundcore snd_page_alloc butt
on usbhid hid ext3 jbd mbcache dm_mod sg sr_mod sd_mod crc_t10dif cdrom ata_gene
ric sdhci_pci sdhci ata_piix ahci firewire_ohci uhci_hcd ehci_hcd libata mmc_cor
e led_class ricoh_mmc scsi_mod firewire_core crc_itu_t tg3 the
Aug  8 19:27:50 u4 kernel: mal thermal_sys libphy usbcore nls_base [last unloade
d: scsi_wait_scan]
Aug  8 19:27:50 u4 kernel: [33951.653727] Pid: 8789, comm: apache2 Not tainted 2
.6.32-5-xen-amd64 #1 8932J15
Aug  8 19:27:50 u4 kernel: [33951.653727] RIP: e030:[<ffffffff81280038>]  [<ffff
ffff81280038>] ip_route_input+0x82/0xcbf
Aug  8 19:27:50 u4 kernel: [33951.653727] RSP: e02b:ffff880003cbaa50  EFLAGS: 00
000282
Aug  8 19:27:50 u4 kernel: [33951.653727] RAX: ffffc900046dff98 RBX: ffffffff816
9a620 RCX: ffff8800bacd1200
Aug  8 19:27:50 u4 kernel: [33951.653727] RDX: 00000000aa0ccd42 RSI: 00000000000
12e20 RDI: 000000002a401973
Aug  8 19:27:50 u4 kernel: [33951.653727] RBP: 0000000000000004 R08: ffff8800b10
54000 R09: ffffffffa03a0a70
Aug  8 19:27:50 u4 kernel: [33951.653727] R10: 000000000000000e R11: ffffffff812
81f5d R12: ffff880002e26c80
Aug  8 19:27:50 u4 kernel: [33951.653727] R13: 000000000b0ba8c0 R14: ffff8800b10
54000 R15: 000000000ad0387d
Aug  8 19:27:50 u4 kernel: [33951.653727] FS:  00007fd81e839740(0000) GS:ffff880
003cb7000(0000) knlGS:0000000000000000
Aug  8 19:27:50 u4 kernel: [33951.653727] CS:  e033 DS: 0000 ES: 0000 CR0: 00000
0008005003b
Aug  8 19:27:50 u4 kernel: [33951.653727] CR2: 0000000001a5c604 CR3: 00000000b29
c1000 CR4: 0000000000002660
Aug  8 19:27:50 u4 kernel: [33951.653727] DR0: 0000000000000000 DR1: 00000000000
00000 DR2: 0000000000000000
Aug  8 19:27:50 u4 kernel: [33951.653727] DR3: 0000000000000000 DR6: 00000000fff
f4ff0 DR7: 0000000000000400
Aug  8 19:27:50 u4 kernel: [33951.653727] Call Trace:
Aug  8 19:27:50 u4 kernel: [33951.653727]  <IRQ>  [<ffffffff8100e6fd>] ? xen_for
ce_evtchn_callback+0x9/0xa
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff8100ee22>] ? check_events+0
x12/0x20
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff812f3bd1>] ? packet_rcv_spk
t+0xd3/0xde
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff8100e6fd>] ? xen_force_evtc
hn_callback+0x9/0xa
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff8100ee22>] ? check_events+0
x12/0x20
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff8127bd0a>] ? nf_iterate+0x4
1/0x7d
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff81281bd0>] ? ip_rcv_finish+
0x0/0x38d
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff8127bda8>] ? nf_hook_slow+0
x62/0xc3
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff81281bd0>] ? ip_rcv_finish+
0x0/0x38d
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff81281c04>] ? ip_rcv_finish+
0x34/0x38d
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff812821fd>] ? ip_rcv+0x2a0/0
x2ed
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffffa039a848>] ? br_handle_fram
e_finish+0x110/0x148 [bridge]
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffffa039ea42>] ? br_nf_pre_rout
ing_finish+0x284/0x2a6 [bridge]
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffffa039e7be>] ? br_nf_pre_rout
ing_finish+0x0/0x2a6 [bridge]
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff8127bda8>] ? nf_hook_slow+0
x62/0xc3
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffffa039e7be>] ? br_nf_pre_rout
ing_finish+0x0/0x2a6 [bridge]
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffffa039efb8>] ? br_nf_pre_rout
ing+0x554/0x56e [bridge]
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff8127bd0a>] ? nf_iterate+0x4
1/0x7d
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff81258697>] ? __netdev_alloc
_skb+0x29/0x43
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffffa039a738>] ? br_handle_fram
e_finish+0x0/0x148 [bridge]
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff8127bda8>] ? nf_hook_slow+0
x62/0xc3
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffffa039a738>] ? br_handle_fram
e_finish+0x0/0x148 [bridge]
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffffa039aa28>] ? br_handle_fram
e+0x1a8/0x1cc [bridge]
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff8125e458>] ? netif_receive_
skb+0x350/0x46d
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff8125e6a2>] ? napi_skb_finis
h+0x1c/0x31
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffffa005c4dd>] ? tg3_poll+0x6cf
/0x93d [tg3]
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff8100e6fd>] ? xen_force_evtc
hn_callback+0x9/0xa
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff8100ee22>] ? check_events+0
x12/0x20
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff8125ebcf>] ? net_rx_action+
0xae/0x1c9
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff810559e6>] ? __do_softirq+0
xdd/0x19f
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff81012cac>] ? call_softirq+0
x1c/0x30
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff81014903>] ? do_softirq+0x3
f/0x7c
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff81055855>] ? irq_exit+0x36/
0x76
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff811f22ea>] ? xen_evtchn_do_
upcall+0x33/0x42
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff81012cfe>] ? xen_do_hypervi
sor_callback+0x1e/0x30
Aug  8 19:27:50 u4 kernel: [33951.653727]  <EOI>  [<ffffffff810cc9b8>] ? do_wp_p
age+0x5ae/0x707
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff810cc997>] ? do_wp_page+0x5
8d/0x707
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff8100c47d>] ? __raw_callee_s
ave_xen_pmd_val+0x11/0x1e
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff810ce4b4>] ? handle_mm_faul
t+0x742/0x7a5
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff810d164f>] ? get_unmapped_a
rea+0xd7/0x139
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff810347e7>] ? do_page_fault+
0x266/0x282
Aug  8 19:27:50 u4 kernel: [33951.653727]  [<ffffffff8130c675>] ? page_fault+0x2
5/0x30
Aug  8 19:30:01 u4 /USR/SBIN/CRON[8964]: (root) CMD (test -x /usr/lib/atsar/atsa
1 && /usr/lib/atsar/atsa1)
Aug  8 19:35:01 u4 /USR/SBIN/CRON[9079]: (root) CMD (command -v debian-sa1 > /de
v/null && debian-sa1 1 1)
Aug  8 19:35:16 u4 kernel: [33951.657735] INFO: task chrome:3176 blocked for mor
e than 120 seconds.
Aug  8 19:35:16 u4 kernel: [33951.657735] "echo 0 > /proc/sys/kernel/hung_task_t
imeout_secs" disables this message.
Aug  8 19:35:16 u4 kernel: [33951.657735] chrome        D 0000000000000002     0
  3176      1 0x00000000
Aug  8 19:35:16 u4 kernel: [33951.657735]  ffffffff814731f0 0000000000000286 000
0000000000064 ffff8800bbc41c90
Aug  8 19:35:16 u4 kernel: [33951.657735]  ffff8800bbc41c90 ffff8800bbc41ca0 000
000000000f8a0 ffff8800bbc41fd8
Aug  8 19:35:16 u4 kernel: [33951.657735]  0000000000015640 0000000000015640 fff
f8800af8fbf90 ffff8800af8fc288
Aug  8 19:35:16 u4 kernel: [33951.657735] Call Trace:
Aug  8 19:35:16 u4 kernel: [33951.657735]  [<ffffffff8100ee0f>] ? xen_restore_fl
_direct_end+0x0/0x1
Aug  8 19:35:16 u4 kernel: [33951.657735]  [<ffffffff8130b324>] ? schedule_timeo
ut+0x2e/0xdd
Aug  8 19:35:16 u4 kernel: [33951.657735]  [<ffffffff810bab9e>] ? __pagevec_free
+0x69/0x80
Aug  8 19:35:16 u4 kernel: [33951.657735]  [<ffffffff8100e6fd>] ? xen_force_evtc
hn_callback+0x9/0xa
Aug  8 19:35:16 u4 kernel: [33951.657735]  [<ffffffff8100ee22>] ? check_events+0
x12/0x20
Aug  8 19:35:16 u4 kernel: [33951.657735]  [<ffffffff8130b1dc>] ? wait_for_commo
n+0xde/0x15b
Aug  8 19:35:16 u4 kernel: [33951.657735]  [<ffffffff8100ee22>] ? check_events+0
x12/0x20
Aug  8 19:35:16 u4 kernel: [33951.657735]  [<ffffffff8104c144>] ? default_wake_f
unction+0x0/0x9
Aug  8 19:35:16 u4 kernel: [33951.657735]  [<ffffffff8100ee0f>] ? xen_restore_fl
_direct_end+0x0/0x1
Aug  8 19:35:16 u4 kernel: [33951.657735]  [<ffffffff81064bf7>] ? synchronize_sc
hed+0x4c/0x52
Aug  8 19:35:16 u4 kernel: [33951.657735]  [<ffffffff81064bfd>] ? wakeme_after_r
cu+0x0/0xb
Aug  8 19:35:16 u4 kernel: [33951.657735]  [<ffffffff8106a034>] ? synchronize_sr
cu+0x28/0xab
Aug  8 19:35:16 u4 kernel: [33951.657735]  [<ffffffff811179f4>] ? fsnotify_put_g
roup+0x6a/0x90
Aug  8 19:35:16 u4 kernel: [33951.657735]  [<ffffffff81119733>] ? inotify_releas
e+0x25/0x37
Aug  8 19:35:16 u4 kernel: [33951.657735]  [<ffffffff810f1159>] ? __fput+0x100/0
x1af
Aug  8 19:35:16 u4 kernel: [33951.657735]  [<ffffffff810ee596>] ? filp_close+0x5
b/0x62
Aug  8 19:35:16 u4 kernel: [33951.657735]  [<ffffffff810ee631>] ? sys_close+0x94
/0xcd
Aug  8 19:35:16 u4 kernel: [33951.657735]  [<ffffffff81011b42>] ? system_call_fa
stpath+0x16/0x1b
Aug  8 19:37:16 u4 kernel: [33951.657735] INFO: task chrome:3176 blocked for mor
e than 120 seconds.
Aug  8 19:37:16 u4 kernel: [33951.657735] "echo 0 > /proc/sys/kernel/hung_task_t
imeout_secs" disables this message.
Aug  8 19:37:16 u4 kernel: [33951.657735] chrome        D 0000000000000002     0
  3176      1 0x00000000
Aug  8 19:37:16 u4 kernel: [33951.657735]  ffffffff814731f0 0000000000000286 000
0000000000064 ffff8800bbc41c90
Aug  8 19:37:16 u4 kernel: [33951.657735]  ffff8800bbc41c90 ffff8800bbc41ca0 000
000000000f8a0 ffff8800bbc41fd8
Aug  8 19:37:16 u4 kernel: [33951.657735]  0000000000015640 0000000000015640 fff
f8800af8fbf90 ffff8800af8fc288
Aug  8 19:37:16 u4 kernel: [33951.657735] Call Trace:
Aug  8 19:37:16 u4 kernel: [33951.657735]  [<ffffffff8100ee0f>] ? xen_restore_fl
_direct_end+0x0/0x1
Aug  8 19:37:16 u4 kernel: [33951.657735]  [<ffffffff8130b324>] ? schedule_timeo
ut+0x2e/0xdd
Aug  8 19:37:16 u4 kernel: [33951.657735]  [<ffffffff810bab9e>] ? __pagevec_free
+0x69/0x80
Aug  8 19:37:16 u4 kernel: [33951.657735]  [<ffffffff8100e6fd>] ? xen_force_evtc
hn_callback+0x9/0xa

(20:05)