Re: kswapd0: excessive CPU usage

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Dne 12.11.2012 14:31, Mel Gorman napsal(a):
On Mon, Nov 12, 2012 at 02:13:20PM +0100, Zdenek Kabelac wrote:
Dne 12.11.2012 13:19, Mel Gorman napsal(a):
On Sun, Nov 11, 2012 at 10:13:14AM +0100, Zdenek Kabelac wrote:
Hmm,  so it's just took longer to hit the problem and observe kswapd0
spinning on my CPU again - it's not as endless like before - but
still it easily eats minutes - it helps to  turn off  Firefox or TB
(memory hungry apps) so kswapd0 stops soon - and restart those apps
again.
(And I still have like >1GB of cached memory)


I posted a "safe" patch that I believe explains why you are seeing what
you are seeing. It does mean that there will still be some stalls due to
THP because kswapd is not helping and it's avoiding the problem rather
than trying to deal with it.

Hence, I'm also going to post this patch even though I have not tested
it myself. If you find it fixes the problem then it would be a
preferable patch to the revert. It still is the case that the
balance_pgdat() logic is in sort need of a rethink as it's pretty
twisted right now.



Should I apply them all together for 3.7-rc5 ?

1) https://lkml.org/lkml/2012/11/5/308
2) https://lkml.org/lkml/2012/11/12/113
3) https://lkml.org/lkml/2012/11/12/151


Not all together. Test either 1+2 or 1+3. 1+2 is the safer choice but
does nothing about THP stalls. 1+3 is a riskier version but depends on
me being correct on what the root cause of the problem you see it.

If both 1+2 and 1+3 work for you, I'd choose 1+3 for merging. If you only
have the time to test one combination then it would be preferred that you
test the safe option of 1+2.

So I've tested  1+2 for a few days - once I've rebooted for another reason,
but today happened this to me (with ~2day uptime)

For some reason my machine went ouf of memory and OOM killed
firefox and then even whole Xsession.

Unsure whether it's related to those 2 patches - but I've never had
such OOM failure before.

Should I experiment now with 1+3 - or is there newer thing to test ?

Zdenek

 X: page allocation failure: order:0, mode:0x200da
 Pid: 1126, comm: X Not tainted 3.7.0-rc5-00007-g95e21c5 #100
 Call Trace:
  [<ffffffff811354e9>] warn_alloc_failed+0xe9/0x140
  [<ffffffff81138eda>] __alloc_pages_nodemask+0x7fa/0xa40
  [<ffffffff81148fc3>] shmem_getpage_gfp+0x603/0x9d0
  [<ffffffff8100a166>] ? native_sched_clock+0x26/0x90
  [<ffffffff81149d6f>] shmem_fault+0x4f/0xa0
  [<ffffffff812ad69e>] shm_fault+0x1e/0x20
  [<ffffffff811571d3>] __do_fault+0x73/0x4d0
  [<ffffffff81131640>] ? generic_file_aio_write+0xb0/0x100
  [<ffffffff81159d67>] handle_pte_fault+0x97/0x9a0
  [<ffffffff810aca4f>] ? __lock_is_held+0x5f/0x90
  [<ffffffff81081711>] ? get_parent_ip+0x11/0x50
 rsyslogd invoked oom-killer: gfp_mask=0x201da, order=0, oom_score_adj=0
 rsyslogd cpuset=/ mems_allowed=0
 Pid: 571, comm: rsyslogd Not tainted 3.7.0-rc5-00007-g95e21c5 #100
 Call Trace:
  [<ffffffff8154dfcb>] dump_header.isra.12+0x78/0x224
  [<ffffffff8155b529>] ? sub_preempt_count+0x79/0xd0
  [<ffffffff81557842>] ? _raw_spin_unlock_irqrestore+0x42/0x80
  [<ffffffff81317c0e>] ? ___ratelimit+0x9e/0x130
  [<ffffffff81133ac3>] oom_kill_process+0x1d3/0x330
  [<ffffffff81134219>] out_of_memory+0x439/0x4a0
  [<ffffffff81139056>] __alloc_pages_nodemask+0x976/0xa40
  [<ffffffff811304b5>] ? find_get_page+0x5/0x230
  [<ffffffff811322a0>] filemap_fault+0x2d0/0x480
  [<ffffffff811571d3>] __do_fault+0x73/0x4d0
  [<ffffffff81159d67>] handle_pte_fault+0x97/0x9a0
  [<ffffffff810aca4f>] ? __lock_is_held+0x5f/0x90
  [<ffffffff81081711>] ? get_parent_ip+0x11/0x50
  [<ffffffff8115ae6f>] handle_mm_fault+0x22f/0x2f0
  [<ffffffff8155ae7d>] __do_page_fault+0x15d/0x4e0
  [<ffffffff8155b529>] ? sub_preempt_count+0x79/0xd0
  [<ffffffff815578b5>] ? _raw_spin_unlock+0x35/0x60
  [<ffffffff811f8d9c>] ? proc_reg_read+0x8c/0xc0
  [<ffffffff815580a3>] ? error_sti+0x5/0x6
  [<ffffffff8131f55d>] ? trace_hardirqs_off_thunk+0x3a/0x3c
  [<ffffffff8155b20e>] do_page_fault+0xe/0x10
  [<ffffffff81557ea2>] page_fault+0x22/0x30
 Mem-Info:
 DMA per-cpu:
 CPU    0: hi:    0, btch:   1 usd:   0
 CPU    1: hi:    0, btch:   1 usd:   0
 DMA32 per-cpu:
 CPU    0: hi:  186, btch:  31 usd:  30
 CPU    1: hi:  186, btch:  31 usd:   6
 Normal per-cpu:
 CPU    0: hi:  186, btch:  31 usd:  30
 CPU    1: hi:  186, btch:  31 usd:   0
 active_anon:900420 inactive_anon:28835 isolated_anon:0
  active_file:43 inactive_file:21 isolated_file:0
  unevictable:4 dirty:34 writeback:2 unstable:0
  free:20731 slab_reclaimable:8641 slab_unreclaimable:10446
  mapped:18325 shmem:243662 pagetables:7705 bounce:0
  free_cma:0
DMA free:12120kB min:272kB low:340kB high:408kB active_anon:2892kB inactive_anon:872kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15900kB mlocked:0kB dirty:0kB writeback:0kB mapped:1672kB shmem:3596kB slab_reclaimable:0kB slab_unreclaimable:16kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
 lowmem_reserve[]: 0 2951 3836 3836
DMA32 free:55296kB min:51776kB low:64720kB high:77664kB active_anon:2834992kB inactive_anon:107924kB active_file:92kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3021968kB mlocked:0kB dirty:88kB writeback:0kB mapped:65460kB shmem:943100kB slab_reclaimable:11700kB slab_unreclaimable:8968kB kernel_stack:592kB pagetables:11852kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:180 all_unreclaimable? yes
 lowmem_reserve[]: 0 0 885 885
Normal free:15508kB min:15532kB low:19412kB high:23296kB active_anon:763796kB inactive_anon:6544kB active_file:80kB inactive_file:32kB unevictable:16kB isolated(anon):0kB isolated(file):0kB present:906664kB mlocked:16kB dirty:48kB writeback:52kB mapped:6168kB shmem:27952kB slab_reclaimable:22864kB slab_unreclaimable:32800kB kernel_stack:2568kB pagetables:18968kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:234 all_unreclaimable? yes
 lowmem_reserve[]: 0 0 0 0
DMA: 2*4kB 2*8kB 2*16kB 1*32kB 2*64kB 1*128kB 2*256kB 2*512kB 2*1024kB 2*2048kB 1*4096kB = 12120kB DMA32: 900*4kB 1512*8kB 513*16kB 635*32kB 109*64kB 8*128kB 0*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 55296kB Normal: 452*4kB 363*8kB 225*16kB 139*32kB 30*64kB 4*128kB 1*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 17496kB
 243783 total pagecache pages
 0 pages in swap cache
 Swap cache stats: add 0, delete 0, find 0/0
 Free swap  = 0kB
 Total swap = 0kB
 1032176 pages RAM
 42789 pages reserved
 553592 pages shared
 943414 pages non-shared
 [ pid ]   uid  tgid total_vm      rss nr_ptes swapents oom_score_adj name
[ 351] 0 351 74685 1679 154 0 0 systemd-journal
 [  544]     0   544     5863      107      16        0             0 bluetoothd
[ 545] 0 545 88977 725 56 0 0 NetworkManager
 [  546]     0   546    30170      158      15        0             0 crond
 [  552]     0   552     1879       28       8        0             0 gpm
 [  557]     0   557     1092       37       8        0             0 acpid
 [  564]    81   564     6361      373      16        0          -900 dbus-daemon
 [  566]     0   566    61331      155      22        0             0 rsyslogd
[ 567] 498 567 7026 104 19 0 0 avahi-daemon [ 568] 498 568 6994 59 17 0 0 avahi-daemon
 [  573]     0   573     1758       33       9        0             0 mcelog
 [  578]     0   578     5925       51      16        0             0 atd
 [  586]   105   586   121536     4270      56        0             0 polkitd
[ 593] 0 593 21967 205 48 0 -900 modem-manager
 [  601]     0   601     1087       26       8        0             0 thinkfan
 [  619]     0   619   122722     1085     129        0             0 libvirtd
 [  630]    32   630     4812       68      13        0             0 rpcbind
 [  633]     0   633    20080      199      43        0         -1000 sshd
 [  653]    29   653     5905      116      16        0             0 rpc.statd
[ 700] 0 700 13173 190 28 0 0 wpa_supplicant
 [  719]     0   719     4810       50      14        0             0 rpc.idmapd
 [  730]     0   730    28268       36      10        0             0 rpc.rquotad
 [  766]     0   766     6030      153      15        0             0 rpc.mountd
 [  806]    99   806     3306       45      11        0             0 dnsmasq
 [  985]     0   985    21219      150      46        0             0 login
[ 988] 0 988 260408 355 48 0 0 console-kit-dae
 [ 1053] 11641  1053    28706      241      14        0             0 bash
 [ 1097] 11641  1097    27972       58      10        0             0 startx
 [ 1125] 11641  1125     3487       48      13        0             0 xinit
 [ 1126] 11641  1126    80028    35289     154        0             0 X
[ 1138] 11641 1138 142989 930 122 0 0 gnome-session
 [ 1151] 11641  1151     4013       64      12        0             0 dbus-launch
 [ 1152] 11641  1152     6069       82      17        0             0 dbus-daemon
[ 1154] 11641 1154 85449 162 36 0 0 at-spi-bus-laun
 [ 1158] 11641  1158     6103      116      17        0             0 dbus-daemon
[ 1161] 11641 1161 32328 174 33 0 0 at-spi2-registr
 [ 1172] 11641  1172     4013       65      13        0             0 dbus-launch
 [ 1173] 11641  1173     6350      265      18        0             0 dbus-daemon
 [ 1177] 11641  1177    37416      416      29        0             0 gconfd-2
[ 1184] 11641 1184 117556 1203 44 0 0 gnome-keyring-d [ 1185] 11641 1185 224829 2236 177 0 0 gnome-settings-
 [ 1194]     0  1194    57227      786      46        0             0 upowerd
 [ 1226] 11641  1226    77392      190      36        0             0 gvfsd
 [ 1246] 11641  1246   118201      772      90        0             0 pulseaudio
[ 1247] 496 1247 41161 59 17 0 0 rtkit-daemon [ 1252] 11641 1252 29494 205 58 0 0 gconf-helper
 [ 1253]   106  1253    81296      355      46        0             0 colord
 [ 1257] 11641  1257    59080     1574      60        0             0 openbox
 [ 1258] 11641  1258   185569     3216     146        0             0 gnome-panel
[ 1264] 11641 1264 64102 229 27 0 0 dconf-service [ 1268] 11641 1268 139203 858 116 0 0 gnome-user-shar
 [ 1269] 11641  1269   268645    27442     334        0             0 pidgin
[ 1270] 11641 1270 142642 1064 117 0 0 bluetooth-apple
 [ 1271] 11641  1271   193218     1775     175        0             0 nm-applet
[ 1272] 11641 1272 220194 1810 138 0 0 gnome-sound-app [ 1285] 11641 1285 80914 632 45 0 0 gvfs-udisks2-vo
 [ 1287]     0  1287    88101      599      41        0             0 udisksd
 [ 1295] 11641  1295   177162    14140     150        0             0 wnck-applet
[ 1297] 11641 1297 281043 3161 199 0 0 clock-applet [ 1299] 11641 1299 142537 1053 120 0 0 cpufreq-applet [ 1302] 11641 1302 141960 986 113 0 0 notification-ar [ 1340] 11641 1340 190026 6265 144 0 0 gnome-terminal [ 1346] 11641 1346 2123 35 10 0 0 gnome-pty-helpe
 [ 1347] 11641  1347    28719      253      11        0             0 bash
 [ 1858] 11641  1858    10895      101      27        0             0 xfconfd
 [ 2052] 11641  2052    28720      255      11        0             0 bash
 [ 6239] 11641  6239    73437      711      88        0             0 kdeinit4
 [ 6240] 11641  6240    83952      717     101        0             0 klauncher
 [ 6242] 11641  6242   126497     1479     172        0             0 kded4
 [ 6244] 11641  6244     2977       48      11        0             0 gam_server
 [10804] 11641 10804   101320      307      47        0             0 gvfsd-http
 [12175]     0 12175    27197       32      10        0             0 agetty
 [12249] 11641 12249    28719      252      14        0             0 bash
 [14862]     0 14862    51773      344      55        0             0 cupsd
 [14868]     4 14868    18105      158      39        0             0 cups-polld
 [16728] 11641 16728    28691      244      12        0             0 bash
[16975] 0 16975 9109 253 23 0 -1000 systemd-udevd [17618] 0 17618 8245 87 22 0 0 systemd-logind
 [ 3133] 11641  3133    43721      132      40        0             0 su
 [ 3136]     0  3136    28564      139      12        0             0 bash
 [ 3983] 11641  3983    43722      134      41        0             0 su
 [ 3986]     0  3986    28564      144      13        0             0 bash
 [16350] 11641 16350    28691      245      14        0             0 bash
 [31228] 11641 31228    28691      245      11        0             0 bash
 [31922] 11641 31922    28719      250      13        0             0 bash
 [ 2340] 11641  2340    28691      245      15        0             0 bash
 [12586]    38 12586     7851      150      19        0             0 ntpd
 [32658] 11641 32658    41192      424      35        0             0 mc
 [32660] 11641 32660    28692      245      13        0             0 bash
 [29193] 11641 29193   713846   414344    1614        0             0 firefox
 [10971] 11641 10971    43722      133      43        0             0 su
 [10974]     0 10974    28564      132      12        0             0 bash
 [11343]     0 11343    28497       66      11        0             0 ksmtuned
 [11387] 11641 11387    28719      254      11        0             0 bash
 [11450] 11641 11450    28691      246      13        0             0 bash
 [11576] 11641 11576    43722      133      40        0             0 su
 [11579]     0 11579    28564      141      13        0             0 bash
 [12106] 11641 12106    28691      244      12        0             0 bash
 [12141] 11641 12141    43722      132      44        0             0 su
 [12144]     0 12144    28564      140      11        0             0 bash
 [12264] 11641 12264    28691      245      11        0             0 bash
 [12299] 11641 12299    43721      133      40        0             0 su
 [12302]     0 12302    28564      137      12        0             0 bash
 [26024] 11641 26024    28691      245      13        0             0 bash
 [26083] 11641 26083    28691      245      13        0             0 bash
 [28235] 11641 28235    43721      132      42        0             0 su
 [28238]     0 28238    28564      143      13        0             0 bash
 [29460] 11641 29460    43721      132      42        0             0 su
 [29463]     0 29463    28564      137      12        0             0 bash
 [29758] 11641 29758    28720      256      12        0             0 bash
 [29864] 11641 29864    41916     1153      36        0             0 mc
 [29866] 11641 29866    28728      257      11        0             0 bash
 [32750]     0 32750    23164     2994      47        0             0 dhclient
 [  323]     0   323    24081      471      48        0             0 sendmail
 [  347]    51   347    20347      367      38        0             0 sendmail
 [  907] 11641   907   379562   159766     707        0             0 thunderbird
 [ 6340] 11641  6340    28719      251      12        0             0 bash
[ 6790] 11641 6790 80307 620 101 0 0 xfce4-notifyd
 [ 6844]     0  6844    26669       23       9        0             0 sleep
 Out of memory: Kill process 29193 (firefox) score 420 or sacrifice child
Killed process 29193 (firefox) total-vm:2855384kB, anon-rss:1653868kB, file-rss:3508kB
  [<ffffffff8115ae6f>] handle_mm_fault+0x22f/0x2f0
  [<ffffffff8115b12a>] __get_user_pages+0x12a/0x530
  [<ffffffff8115b575>] get_dump_page+0x45/0x60
  [<ffffffff811eec6d>] elf_core_dump+0x16bd/0x1960
  [<ffffffff811edf86>] ? elf_core_dump+0x9d6/0x1960
  [<ffffffff8155b529>] ? sub_preempt_count+0x79/0xd0
  [<ffffffff815546ae>] ? mutex_unlock+0xe/0x10
  [<ffffffff8118ed63>] ? do_truncate+0x73/0xa0
  [<ffffffff811f55a1>] do_coredump+0xa21/0xeb0
  [<ffffffff810b22a0>] ? debug_check_no_locks_freed+0xe0/0x170
  [<ffffffff810abe8d>] ? trace_hardirqs_off+0xd/0x10
  [<ffffffff8105a961>] get_signal_to_deliver+0x2e1/0x960
  [<ffffffff8100236f>] do_signal+0x3f/0x9a0
  [<ffffffff81540000>] ? pci_fixup_msi_k8t_onboard_sound+0x7d/0x97
  [<ffffffff8154b565>] ? is_prefetch.isra.15+0x1a6/0x1fd
  [<ffffffff815580a3>] ? error_sti+0x5/0x6
  [<ffffffff81557cd1>] ? retint_signal+0x11/0x90
  [<ffffffff81002d70>] do_notify_resume+0x80/0xb0
  [<ffffffff81557d06>] retint_signal+0x46/0x90
 Mem-Info:
 DMA per-cpu:
 CPU    0: hi:    0, btch:   1 usd:   0
 CPU    1: hi:    0, btch:   1 usd:   0
 DMA32 per-cpu:
 CPU    0: hi:  186, btch:  31 usd:   0
 CPU    1: hi:  186, btch:  31 usd:  30
 Normal per-cpu:
 CPU    0: hi:  186, btch:  31 usd:   0
 CPU    1: hi:  186, btch:  31 usd:  30
 active_anon:900420 inactive_anon:28835 isolated_anon:0
  active_file:8 inactive_file:0 isolated_file:0
  unevictable:4 dirty:34 writeback:2 unstable:0
  free:20724 slab_reclaimable:8641 slab_unreclaimable:10446
  mapped:18325 shmem:243662 pagetables:7705 bounce:0
  free_cma:0
DMA free:12120kB min:272kB low:340kB high:408kB active_anon:2892kB inactive_anon:872kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15900kB mlocked:0kB dirty:0kB writeback:0kB mapped:1672kB shmem:3596kB slab_reclaimable:0kB slab_unreclaimable:16kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
 lowmem_reserve[]: 0 2951 3836 3836
DMA32 free:55404kB min:51776kB low:64720kB high:77664kB active_anon:2834992kB inactive_anon:107924kB active_file:0kB inactive_file:28kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3021968kB mlocked:0kB dirty:0kB writeback:0kB mapped:65460kB shmem:943100kB slab_reclaimable:11700kB slab_unreclaimable:8968kB kernel_stack:592kB pagetables:11852kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:129 all_unreclaimable? yes
 lowmem_reserve[]: 0 0 885 885
Normal free:15364kB min:15532kB low:19412kB high:23296kB active_anon:763796kB inactive_anon:6544kB active_file:0kB inactive_file:24kB unevictable:16kB isolated(anon):0kB isolated(file):0kB present:906664kB mlocked:16kB dirty:48kB writeback:52kB mapped:6168kB shmem:27952kB slab_reclaimable:22864kB slab_unreclaimable:32800kB kernel_stack:2568kB pagetables:18968kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:379 all_unreclaimable? yes
 lowmem_reserve[]: 0 0 0 0
DMA: 2*4kB 2*8kB 2*16kB 1*32kB 2*64kB 1*128kB 2*256kB 2*512kB 2*1024kB 2*2048kB 1*4096kB = 12120kB DMA32: 896*4kB 1512*8kB 513*16kB 635*32kB 109*64kB 8*128kB 0*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 55280kB Normal: 403*4kB 377*8kB 225*16kB 139*32kB 30*64kB 4*128kB 1*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 17412kB
 243733 total pagecache pages
 rsyslogd invoked oom-killer: gfp_mask=0x201da, order=0, oom_score_adj=0
 rsyslogd cpuset=/ mems_allowed=0
 Pid: 571, comm: rsyslogd Not tainted 3.7.0-rc5-00007-g95e21c5 #100
 Call Trace:
  [<ffffffff8154dfcb>] dump_header.isra.12+0x78/0x224
  [<ffffffff8155b529>] ? sub_preempt_count+0x79/0xd0
  [<ffffffff81557842>] ? _raw_spin_unlock_irqrestore+0x42/0x80
  [<ffffffff81317c0e>] ? ___ratelimit+0x9e/0x130
  [<ffffffff81133ac3>] oom_kill_process+0x1d3/0x330
  [<ffffffff81134219>] out_of_memory+0x439/0x4a0
  [<ffffffff81139056>] __alloc_pages_nodemask+0x976/0xa40
  [<ffffffff811304b5>] ? find_get_page+0x5/0x230
  [<ffffffff811322a0>] filemap_fault+0x2d0/0x480
  [<ffffffff811571d3>] __do_fault+0x73/0x4d0
  [<ffffffff81159d67>] handle_pte_fault+0x97/0x9a0
  [<ffffffff810aca4f>] ? __lock_is_held+0x5f/0x90
  [<ffffffff81081711>] ? get_parent_ip+0x11/0x50
  [<ffffffff8115ae6f>] handle_mm_fault+0x22f/0x2f0
  [<ffffffff8155ae7d>] __do_page_fault+0x15d/0x4e0
  [<ffffffff815578b5>] ? _raw_spin_unlock+0x35/0x60
  [<ffffffff811f8d9c>] ? proc_reg_read+0x8c/0xc0
  [<ffffffff815580a3>] ? error_sti+0x5/0x6
  [<ffffffff8131f55d>] ? trace_hardirqs_off_thunk+0x3a/0x3c
  [<ffffffff8155b20e>] do_page_fault+0xe/0x10
  [<ffffffff81557ea2>] page_fault+0x22/0x30
 Mem-Info:
 DMA per-cpu:
 CPU    0: hi:    0, btch:   1 usd:   0
 CPU    1: hi:    0, btch:   1 usd:   0
 DMA32 per-cpu:
 CPU    0: hi:  186, btch:  31 usd:   0
 CPU    1: hi:  186, btch:  31 usd:  30
 Normal per-cpu:
 CPU    0: hi:  186, btch:  31 usd:   1
 CPU    1: hi:  186, btch:  31 usd:  46
 active_anon:900420 inactive_anon:28835 isolated_anon:0
  active_file:0 inactive_file:7 isolated_file:0
  unevictable:4 dirty:0 writeback:2 unstable:0
  free:20691 slab_reclaimable:8641 slab_unreclaimable:10446
  mapped:18325 shmem:243662 pagetables:7705 bounce:0
  free_cma:0
DMA free:12120kB min:272kB low:340kB high:408kB active_anon:2892kB inactive_anon:872kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15900kB mlocked:0kB dirty:0kB writeback:0kB mapped:1672kB shmem:3596kB slab_reclaimable:0kB slab_unreclaimable:16kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
 lowmem_reserve[]: 0 2951 3836 3836
DMA32 free:55280kB min:51776kB low:64720kB high:77664kB active_anon:2834992kB inactive_anon:107924kB active_file:0kB inactive_file:12kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3021968kB mlocked:0kB dirty:0kB writeback:0kB mapped:65460kB shmem:943100kB slab_reclaimable:11700kB slab_unreclaimable:8968kB kernel_stack:592kB pagetables:11852kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:520 all_unreclaimable? yes
 lowmem_reserve[]: 0 0 885 885
Normal free:15364kB min:15532kB low:19412kB high:23296kB active_anon:763796kB inactive_anon:6544kB active_file:0kB inactive_file:16kB unevictable:16kB isolated(anon):0kB isolated(file):0kB present:906664kB mlocked:16kB dirty:48kB writeback:52kB mapped:6168kB shmem:27952kB slab_reclaimable:22864kB slab_unreclaimable:32800kB kernel_stack:2568kB pagetables:18968kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:571 all_unreclaimable? yes
 lowmem_reserve[]: 0 0 0 0
DMA: 2*4kB 2*8kB 2*16kB 1*32kB 2*64kB 1*128kB 2*256kB 2*512kB 2*1024kB 2*2048kB 1*4096kB = 12120kB DMA32: 896*4kB 1512*8kB 513*16kB 635*32kB 109*64kB 8*128kB 0*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 55280kB Normal: 403*4kB 377*8kB 225*16kB 139*32kB 30*64kB 4*128kB 1*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 17412kB
 243733 total pagecache pages
 0 pages in swap cache
 Swap cache stats: add 0, delete 0, find 0/0
 Free swap  = 0kB
 Total swap = 0kB
 0 pages in swap cache
 Swap cache stats: add 0, delete 0, find 0/0
 Free swap  = 0kB
 Total swap = 0kB
 1032176 pages RAM
 42789 pages reserved
 553579 pages shared
 943538 pages non-shared
 1032176 pages RAM
 42789 pages reserved
 553576 pages shared
 943549 pages non-shared
 [ pid ]   uid  tgid total_vm      rss nr_ptes swapents oom_score_adj name
[ 351] 0 351 74685 1682 154 0 0 systemd-journal
 [  544]     0   544     5863      107      16        0             0 bluetoothd
[ 545] 0 545 88977 725 56 0 0 NetworkManager
 [  546]     0   546    30170      158      15        0             0 crond
 [  552]     0   552     1879       28       8        0             0 gpm
 [  557]     0   557     1092       37       8        0             0 acpid
 [  564]    81   564     6361      373      16        0          -900 dbus-daemon
 [  566]     0   566    61331      155      22        0             0 rsyslogd
[ 567] 498 567 7026 104 19 0 0 avahi-daemon [ 568] 498 568 6994 59 17 0 0 avahi-daemon
 [  573]     0   573     1758       33       9        0             0 mcelog
 [  578]     0   578     5925       51      16        0             0 atd
 [  586]   105   586   121536     4270      56        0             0 polkitd
[ 593] 0 593 21967 205 48 0 -900 modem-manager
 [  601]     0   601     1087       26       8        0             0 thinkfan
 [  619]     0   619   122722     1085     129        0             0 libvirtd
 [  630]    32   630     4812       68      13        0             0 rpcbind
 [  633]     0   633    20080      199      43        0         -1000 sshd
 [  653]    29   653     5905      116      16        0             0 rpc.statd
[ 700] 0 700 13173 190 28 0 0 wpa_supplicant
 [  719]     0   719     4810       50      14        0             0 rpc.idmapd
 [  730]     0   730    28268       36      10        0             0 rpc.rquotad
 [  766]     0   766     6030      153      15        0             0 rpc.mountd
 [  806]    99   806     3306       45      11        0             0 dnsmasq
 [  985]     0   985    21219      150      46        0             0 login
[ 988] 0 988 260408 355 48 0 0 console-kit-dae
 [ 1053] 11641  1053    28706      241      14        0             0 bash
 [ 1097] 11641  1097    27972       58      10        0             0 startx
 [ 1125] 11641  1125     3487       48      13        0             0 xinit
 [ 1126] 11641  1126    80028    35379     154        0             0 X
[ 1138] 11641 1138 142989 930 122 0 0 gnome-session
 [ 1151] 11641  1151     4013       64      12        0             0 dbus-launch
 [ 1152] 11641  1152     6069       82      17        0             0 dbus-daemon
[ 1154] 11641 1154 85449 162 36 0 0 at-spi-bus-laun
 [ 1158] 11641  1158     6103      116      17        0             0 dbus-daemon
[ 1161] 11641 1161 32328 174 33 0 0 at-spi2-registr
 [ 1172] 11641  1172     4013       65      13        0             0 dbus-launch
 [ 1173] 11641  1173     6350      265      18        0             0 dbus-daemon
 [ 1177] 11641  1177    37416      416      29        0             0 gconfd-2
[ 1184] 11641 1184 117556 1203 44 0 0 gnome-keyring-d [ 1185] 11641 1185 224829 2236 177 0 0 gnome-settings-
 [ 1194]     0  1194    57227      786      46        0             0 upowerd
 [ 1226] 11641  1226    77392      190      36        0             0 gvfsd
 [ 1246] 11641  1246   118201      772      90        0             0 pulseaudio
[ 1247] 496 1247 41161 59 17 0 0 rtkit-daemon [ 1252] 11641 1252 29494 205 58 0 0 gconf-helper
 [ 1253]   106  1253    81296      355      46        0             0 colord
 [ 1257] 11641  1257    59080     1574      60        0             0 openbox
 [ 1258] 11641  1258   185569     3216     146        0             0 gnome-panel
[ 1264] 11641 1264 64102 229 27 0 0 dconf-service [ 1268] 11641 1268 139203 858 116 0 0 gnome-user-shar
 [ 1269] 11641  1269   268645    27442     334        0             0 pidgin
[ 1270] 11641 1270 142642 1064 117 0 0 bluetooth-apple
 [ 1271] 11641  1271   193218     1775     175        0             0 nm-applet
[ 1272] 11641 1272 220194 1810 138 0 0 gnome-sound-app [ 1285] 11641 1285 80914 632 45 0 0 gvfs-udisks2-vo
 [ 1287]     0  1287    88101      599      41        0             0 udisksd
 [ 1295] 11641  1295   177162    14140     150        0             0 wnck-applet
[ 1297] 11641 1297 281043 3161 199 0 0 clock-applet [ 1299] 11641 1299 142537 1051 120 0 0 cpufreq-applet [ 1302] 11641 1302 141960 986 113 0 0 notification-ar [ 1340] 11641 1340 190026 6265 144 0 0 gnome-terminal [ 1346] 11641 1346 2123 35 10 0 0 gnome-pty-helpe
 [ 1347] 11641  1347    28719      253      11        0             0 bash
 [ 1858] 11641  1858    10895      101      27        0             0 xfconfd
 X: page allocation failure: order:0, mode:0x200da
 Pid: 1126, comm: X Not tainted 3.7.0-rc5-00007-g95e21c5 #100
 [ 2052] 11641  2052    28720      255      11        0             0 bash
 [ 6239] 11641  6239    73437      711      88        0             0 kdeinit4
 [ 6240] 11641  6240    83952      717     101        0             0 klauncher
 Call Trace:
  [<ffffffff811354e9>] warn_alloc_failed+0xe9/0x140
  [<ffffffff81138eda>] __alloc_pages_nodemask+0x7fa/0xa40
  [<ffffffff81148fc3>] shmem_getpage_gfp+0x603/0x9d0
  [<ffffffff8100a166>] ? native_sched_clock+0x26/0x90
  [<ffffffff81149d6f>] shmem_fault+0x4f/0xa0
  [<ffffffff812ad69e>] shm_fault+0x1e/0x20
  [<ffffffff811571d3>] __do_fault+0x73/0x4d0
  [<ffffffff81131640>] ? generic_file_aio_write+0xb0/0x100
  [<ffffffff81159d67>] handle_pte_fault+0x97/0x9a0
  [<ffffffff810aca4f>] ? __lock_is_held+0x5f/0x90
  [<ffffffff81081711>] ? get_parent_ip+0x11/0x50
  [<ffffffff8115ae6f>] handle_mm_fault+0x22f/0x2f0
  [<ffffffff8115b12a>] __get_user_pages+0x12a/0x530
  [<ffffffff8115b575>] get_dump_page+0x45/0x60
  [<ffffffff811eec6d>] elf_core_dump+0x16bd/0x1960
  [<ffffffff811edf86>] ? elf_core_dump+0x9d6/0x1960
  [<ffffffff8155b529>] ? sub_preempt_count+0x79/0xd0
  [<ffffffff815546ae>] ? mutex_unlock+0xe/0x10
  [<ffffffff8118ed63>] ? do_truncate+0x73/0xa0
  [<ffffffff811f55a1>] do_coredump+0xa21/0xeb0
  [<ffffffff810b22a0>] ? debug_check_no_locks_freed+0xe0/0x170
  [<ffffffff810abe8d>] ? trace_hardirqs_off+0xd/0x10
  [<ffffffff8105a961>] get_signal_to_deliver+0x2e1/0x960
  [<ffffffff8100236f>] do_signal+0x3f/0x9a0
  [<ffffffff81540000>] ? pci_fixup_msi_k8t_onboard_sound+0x7d/0x97
  [<ffffffff8154b565>] ? is_prefetch.isra.15+0x1a6/0x1fd
  [<ffffffff815580a3>] ? error_sti+0x5/0x6
  [<ffffffff81557cd1>] ? retint_signal+0x11/0x90
  [<ffffffff81002d70>] do_notify_resume+0x80/0xb0
  [<ffffffff81557d06>] retint_signal+0x46/0x90
 Mem-Info:
 DMA per-cpu:
 CPU    0: hi:    0, btch:   1 usd:   0
 CPU    1: hi:    0, btch:   1 usd:   0
 DMA32 per-cpu:
 CPU    0: hi:  186, btch:  31 usd:   0
 CPU    1: hi:  186, btch:  31 usd:   0
 Normal per-cpu:
 CPU    0: hi:  186, btch:  31 usd:   1
 CPU    1: hi:  186, btch:  31 usd:  14
 active_anon:900420 inactive_anon:28978 isolated_anon:0
  active_file:22 inactive_file:24 isolated_file:0
  unevictable:4 dirty:5 writeback:0 unstable:0
  free:20346 slab_reclaimable:8656 slab_unreclaimable:10414
  mapped:18437 shmem:243751 pagetables:7717 bounce:0
  free_cma:0
DMA free:12120kB min:272kB low:340kB high:408kB active_anon:2892kB inactive_anon:872kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15900kB mlocked:0kB dirty:0kB writeback:0kB mapped:1672kB shmem:3596kB slab_reclaimable:0kB slab_unreclaimable:16kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
 lowmem_reserve[]: 0 2951 3836 3836
DMA32 free:55316kB min:51776kB low:64720kB high:77664kB active_anon:2834992kB inactive_anon:108408kB active_file:52kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3021968kB mlocked:0kB dirty:20kB writeback:0kB mapped:65916kB shmem:943452kB slab_reclaimable:11716kB slab_unreclaimable:8904kB kernel_stack:488kB pagetables:11880kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:3103 all_unreclaimable? yes
 lowmem_reserve[]: 0 0 885 885
Normal free:13948kB min:15532kB low:19412kB high:23296kB active_anon:763796kB inactive_anon:6632kB active_file:36kB inactive_file:40kB unevictable:16kB isolated(anon):0kB isolated(file):0kB present:906664kB mlocked:16kB dirty:0kB writeback:0kB mapped:6160kB shmem:27956kB slab_reclaimable:22908kB slab_unreclaimable:32736kB kernel_stack:2352kB pagetables:18988kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:602 all_unreclaimable? yes
 lowmem_reserve[]: 0 0 0 0
DMA: 2*4kB 2*8kB 2*16kB 1*32kB 2*64kB 1*128kB 2*256kB 2*512kB 2*1024kB 2*2048kB 1*4096kB = 12120kB DMA32: 883*4kB 1525*8kB 513*16kB 637*32kB 109*64kB 8*128kB 0*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 55396kB Normal: 269*4kB 255*8kB 227*16kB 141*32kB 30*64kB 4*128kB 1*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 15996kB
 243797 total pagecache pages
 0 pages in swap cache
 Swap cache stats: add 0, delete 0, find 0/0
 Free swap  = 0kB
 Total swap = 0kB
 1032176 pages RAM
 42789 pages reserved
 553637 pages shared
 943817 pages non-shared
 X: page allocation failure: order:0, mode:0x200da
 Pid: 1126, comm: X Not tainted 3.7.0-rc5-00007-g95e21c5 #100
 Call Trace:
  [<ffffffff811354e9>] warn_alloc_failed+0xe9/0x140
  [<ffffffff81138eda>] __alloc_pages_nodemask+0x7fa/0xa40
  [<ffffffff81148fc3>] shmem_getpage_gfp+0x603/0x9d0
  [<ffffffff8100a166>] ? native_sched_clock+0x26/0x90
  [<ffffffff81149d6f>] shmem_fault+0x4f/0xa0
  [<ffffffff812ad69e>] shm_fault+0x1e/0x20
  [<ffffffff811571d3>] __do_fault+0x73/0x4d0
  [<ffffffff81159d67>] handle_pte_fault+0x97/0x9a0
  [<ffffffff810aca4f>] ? __lock_is_held+0x5f/0x90
  [<ffffffff81081711>] ? get_parent_ip+0x11/0x50
  [<ffffffff8115ae6f>] handle_mm_fault+0x22f/0x2f0
  [<ffffffff8115b12a>] __get_user_pages+0x12a/0x530
  [<ffffffff815578b5>] ? _raw_spin_unlock+0x35/0x60
  [<ffffffff8115b575>] get_dump_page+0x45/0x60
  [<ffffffff811eec6d>] elf_core_dump+0x16bd/0x1960
  [<ffffffff811edf86>] ? elf_core_dump+0x9d6/0x1960
  [<ffffffff8155b529>] ? sub_preempt_count+0x79/0xd0
  [<ffffffff815546ae>] ? mutex_unlock+0xe/0x10
  [<ffffffff8118ed63>] ? do_truncate+0x73/0xa0
  [<ffffffff811f55a1>] do_coredump+0xa21/0xeb0
  [<ffffffff810b22a0>] ? debug_check_no_locks_freed+0xe0/0x170
  [<ffffffff810abe8d>] ? trace_hardirqs_off+0xd/0x10
  [<ffffffff8105a961>] get_signal_to_deliver+0x2e1/0x960
  [<ffffffff8100236f>] do_signal+0x3f/0x9a0
  [<ffffffff81540000>] ? pci_fixup_msi_k8t_onboard_sound+0x7d/0x97
  [<ffffffff8154b565>] ? is_prefetch.isra.15+0x1a6/0x1fd
  [<ffffffff815580a3>] ? error_sti+0x5/0x6
  [<ffffffff81557cd1>] ? retint_signal+0x11/0x90
  [<ffffffff81002d70>] do_notify_resume+0x80/0xb0
  [<ffffffff81557d06>] retint_signal+0x46/0x90
 Mem-Info:
 DMA per-cpu:
 CPU    0: hi:    0, btch:   1 usd:   0
 CPU    1: hi:    0, btch:   1 usd:   0
 DMA32 per-cpu:
 CPU    0: hi:  186, btch:  31 usd:   0
 CPU    1: hi:  186, btch:  31 usd:   0
 Normal per-cpu:
 CPU    0: hi:  186, btch:  31 usd:   1
 CPU    1: hi:  186, btch:  31 usd:  24
 active_anon:900420 inactive_anon:28978 isolated_anon:0
  active_file:22 inactive_file:24 isolated_file:19
  unevictable:4 dirty:5 writeback:0 unstable:0
  free:20222 slab_reclaimable:8656 slab_unreclaimable:10414
  mapped:18437 shmem:243751 pagetables:7717 bounce:0
  free_cma:0
DMA free:12120kB min:272kB low:340kB high:408kB active_anon:2892kB inactive_anon:872kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15900kB mlocked:0kB dirty:0kB writeback:0kB mapped:1672kB shmem:3596kB slab_reclaimable:0kB slab_unreclaimable:16kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
 lowmem_reserve[]: 0 2951 3836 3836
DMA32 free:55316kB min:51776kB low:64720kB high:77664kB active_anon:2834992kB inactive_anon:108408kB active_file:52kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3021968kB mlocked:0kB dirty:20kB writeback:0kB mapped:65916kB shmem:943452kB slab_reclaimable:11716kB slab_unreclaimable:8904kB kernel_stack:488kB pagetables:11880kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:3940 all_unreclaimable? yes
 [ 6242] 11641  6242   126497     1479     172        0             0 kded4
 [ 6244] 11641  6244     2977       48      11        0             0 gam_server
 [10804] 11641 10804   101320      307      47        0             0 gvfsd-http
 [12175]     0 12175    27197       32      10        0             0 agetty
 [12249] 11641 12249    28719      252      14        0             0 bash
 [14862]     0 14862    51773      344      55        0             0 cupsd
 [14868]     4 14868    18105      158      39        0             0 cups-polld
 [16728] 11641 16728    28691      244      12        0             0 bash
[16975] 0 16975 9109 253 23 0 -1000 systemd-udevd [17618] 0 17618 8245 87 22 0 0 systemd-logind
 [ 3133] 11641  3133    43721      132      40        0             0 su
 [ 3136]     0  3136    28564      139      12        0             0 bash
 [ 3983] 11641  3983    43722      134      41        0             0 su
 [ 3986]     0  3986    28564      144      13        0             0 bash
 [16350] 11641 16350    28691      245      14        0             0 bash
 [31228] 11641 31228    28691      245      11        0             0 bash
 [31922] 11641 31922    28719      250      13        0             0 bash
 [ 2340] 11641  2340    28691      245      15        0             0 bash
 [12586]    38 12586     7851      150      19        0             0 ntpd
 [32658] 11641 32658    41192      424      35        0             0 mc
 [32660] 11641 32660    28692      245      13        0             0 bash
 [10971] 11641 10971    43722      133      43        0             0 su
 [10974]     0 10974    28564      132      12        0             0 bash
 [11343]     0 11343    28497       66      11        0             0 ksmtuned
 [11387] 11641 11387    28719      254      11        0             0 bash
 [11450] 11641 11450    28691      246      13        0             0 bash
 [11576] 11641 11576    43722      133      40        0             0 su
 [11579]     0 11579    28564      141      13        0             0 bash
 [12106] 11641 12106    28691      244      12        0             0 bash
 [12141] 11641 12141    43722      132      44        0             0 su
 [12144]     0 12144    28564      140      11        0             0 bash
 [12264] 11641 12264    28691      245      11        0             0 bash
 [12299] 11641 12299    43721      133      40        0             0 su
 [12302]     0 12302    28564      137      12        0             0 bash
 [26024] 11641 26024    28691      245      13        0             0 bash
 [26083] 11641 26083    28691      245      13        0             0 bash
 [28235] 11641 28235    43721      132      42        0             0 su
 [28238]     0 28238    28564      143      13        0             0 bash
 [29460] 11641 29460    43721      132      42        0             0 su
 [29463]     0 29463    28564      137      12        0             0 bash
 [29758] 11641 29758    28720      256      12        0             0 bash
 [29864] 11641 29864    41916     1153      36        0             0 mc
 [29866] 11641 29866    28728      257      11        0             0 bash
 [32750]     0 32750    23164     2994      47        0             0 dhclient
 [  323]     0   323    24081      471      48        0             0 sendmail
 [  347]    51   347    20347      367      38        0             0 sendmail
 [  907] 11641   907   379562   159766     707        0             0 thunderbird
 [ 6340] 11641  6340    28719      251      12        0             0 bash
[ 6790] 11641 6790 80307 620 101 0 0 xfce4-notifyd
 [ 6844]     0  6844    26669       23       9        0             0 sleep
 Out of memory: Kill process 907 (thunderbird) score 162 or sacrifice child
Killed process 907 (thunderbird) total-vm:1518248kB, anon-rss:638476kB, file-rss:588kB
 lowmem_reserve[]: 0 0 885 885
Normal free:12832kB min:15532kB low:19412kB high:23296kB active_anon:763796kB inactive_anon:6632kB active_file:36kB inactive_file:40kB unevictable:16kB isolated(anon):0kB isolated(file):0kB present:906664kB mlocked:16kB dirty:0kB writeback:0kB mapped:6160kB shmem:27956kB slab_reclaimable:22908kB slab_unreclaimable:32736kB kernel_stack:2352kB pagetables:18988kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:1742 all_unreclaimable? yes
 lowmem_reserve[]: 0 0 0 0
DMA: 2*4kB 2*8kB 2*16kB 1*32kB 2*64kB 1*128kB 2*256kB 2*512kB 2*1024kB 2*2048kB 1*4096kB = 12120kB DMA32: 883*4kB 1525*8kB 513*16kB 637*32kB 109*64kB 8*128kB 0*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 55396kB Normal: 270*4kB 173*8kB 198*16kB 141*32kB 30*64kB 4*128kB 1*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 14880kB
 243797 total pagecache pages
 0 pages in swap cache
 Swap cache stats: add 0, delete 0, find 0/0
 Free swap  = 0kB
 Total swap = 0kB
 1032176 pages RAM
 42789 pages reserved
 553659 pages shared
 937056 pages non-shared

 SysRq : Emergency Sync
 Emergency Sync complete
 SysRq : Emergency Remount R/O



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