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[Bug 1401817] Re: memory leak with unknown reason after upgrade to utopic

 

and another one with corresponding ps aux:

top - 18:04:02 up 1 day,  8:56,  1 user,  load average: 0.04, 0.80, 8.61
Tasks: 269 total,   1 running, 268 sleeping,   0 stopped,   0 zombie
%Cpu(s):  0.0 us,  0.0 sy,  0.0 ni,100.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
KiB Mem:  49452964 total, 45882236 used,  3570728 free,    17084 buffers
KiB Swap: 50320380 total, 15316768 used, 35003612 free. 43639820 cached Mem

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND                                                                                                                                        
16739 root       1 -19   76904  18980   4304 S   0.0  0.0   0:04.95 bs_worker                                                                                                                                      
16746 root       1 -19   76904  18980   4304 S   0.0  0.0   0:05.14 bs_worker                                                                                                                                      
16736 root       1 -19   76832  18976   4304 S   0.0  0.0   0:05.25 bs_worker                                                                                                                                      
16745 root       1 -19   76904  18976   4304 S   0.0  0.0   0:05.21 bs_worker                                                                                                                                      
16731 root       1 -19   76904  18960   4284 S   0.0  0.0   0:05.20 bs_worker                                                                                                                                      
16740 root       1 -19   76884  18952   4292 S   0.0  0.0   0:05.26 bs_worker                                                                                                                                      
16737 root       1 -19   76832  18936   4264 S   0.0  0.0   0:05.18 bs_worker                                                                                                                                      
16741 root       1 -19   76904  18932   4256 S   0.0  0.0   0:04.92 bs_worker                                                                                                                                      
16743 root       1 -19   76904  18932   4256 S   0.0  0.0   0:05.00 bs_worker                                                                                                                                      
16742 root       1 -19   76836  18888   4216 S   0.0  0.0   0:05.16 bs_worker                                                                                                                                      
16744 root       1 -19   76904  18880   4212 S   0.0  0.0   0:05.15 bs_worker                                                                                                                                      
16725 root       1 -19   76884  18872   4216 S   0.3  0.0   0:05.09 bs_worker                                                                                                                                      
16735 root       1 -19   76832  18872   4200 S   0.0  0.0   0:05.24 bs_worker                                                                                                                                      
16726 root       1 -19   76836  18844   4168 S   0.0  0.0   0:05.28 bs_worker                                                                                                                                      
16738 root       1 -19   76904  18840   4164 S   0.0  0.0   0:05.14 bs_worker                                                                                                                                      
16728 root       1 -19   76884  18828   4168 S   0.0  0.0   0:05.27 bs_worker                                                                                                                                      
16732 root       1 -19   76884  18820   4160 S   0.0  0.0   0:05.23 bs_worker                                                                                                                                      
16734 root       1 -19   76904  18808   4128 S   0.0  0.0   0:05.28 bs_worker                                                                                                                                      
16730 root       1 -19   76912  18800   4128 S   0.0  0.0   0:05.12 bs_worker                                                                                                                                      
16733 root       1 -19   76864  18792   4128 S   0.0  0.0   0:05.25 bs_worker                                                                                                                                      
16727 root       1 -19   76836  18784   4168 S   0.0  0.0   0:04.93 bs_worker                                                                                                                                      
16729 root       1 -19   76904  18780   4128 S   0.0  0.0   0:05.01 bs_worker                                                                                                                                      
  805 root      20   0   52780  13564   3540 S   0.0  0.0   0:04.53 munin-node                                                                                                                                     
21187 root      20   0   99676   6488   5512 S   0.0  0.0   0:02.63 sshd                                                                                                                                           
16724 root      20   0   34896   5704   1644 S   0.0  0.0   1:58.17 screen                                                                                                                                         
23909 root      20   0   26736   5504   3516 S   0.0  0.0   0:00.15 bash                                                                                                                                           
 1243 root      20   0   10272   3928   1620 S   0.0  0.0   0:00.29 dhclient                                                                                                                                       
 3873 root      20   0   29272   3336   2668 R   0.3  0.0   0:00.18 top                                                                                                                                            
 1496 root      20   0  123748   3304   2704 S   0.0  0.0   0:05.55 thermald                                                                                                                                       
  628 syslog    20   0  255864   3164   1916 S   0.0  0.0   0:00.50 rsyslogd                                                                                                                                       
    1 root      20   0   29048   3160   1936 S   0.0  0.0   0:04.20 init                                                                                                                                           
 3038 root      20   0   36764   3024   2712 S   0.0  0.0   0:00.03 systemd-logind                                                                                                                                 
 1532 root      20   0   59580   2952   2264 S   0.0  0.0   0:00.01 sshd                                                                                                                                           
 1679 ntp       20   0   31488   2952   2344 S   0.0  0.0   0:05.66 ntpd                                                                                                                                           
  698 message+  20   0   43992   2644   2156 S   0.0  0.0   0:00.11 dbus-daemon                                                                                                                                    
  405 root      20   0   23704   2588   2340 S   0.0  0.0   0:00.06 cgmanager                                                                                                                                      
  438 root      20   0   34772   2584   2088 S   0.0  0.0   0:00.64 systemd-udevd                                                                                                                                  
 1554 root      20   0   26032   2380   2112 S   0.0  0.0   0:00.18 cron                                                                                                                                           
 1604 root      20   0   19500   1892   1612 S   0.0  0.0   0:10.16 irqbalance                                                                                                                                     
 1495 root      20   0   20000   1844   1684 S   0.0  0.0   0:00.00 getty                                                                                                                                          
 1492 root      20   0   20000   1824   1660 S   0.0  0.0   0:00.00 getty                                                                                                                                          
 1503 root      20   0   20000   1824   1672 S   0.0  0.0   0:00.00 getty                                                                                                                                          
 1809 root      20   0   20000   1808   1656 S   0.0  0.0   0:00.00 getty                                                                                                                                          
 1500 root      20   0   20000   1784   1624 S   0.0  0.0   0:00.00 getty                                                                                                                                          
 1501 root      20   0   20000   1764   1600 S   0.0  0.0   0:00.00 getty                                                                                                                                          
  431 root      20   0   24092   1412   1144 S   0.0  0.0   0:00.22 upstart-udev-br                                                                                                                                
  624 root      20   0   15308    196      0 S   0.0  0.0   0:00.08 upstart-file-br                                                                                                                                
  675 root      20   0   15292    196      0 S   0.0  0.0   0:00.05 upstart-socket-                                                                                                                                
 1555 daemon    20   0   19156    168      0 S   0.0  0.0   0:00.00 atd                                                                                                                                            
 1629 root      20   0   12736    132      0 S   0.0  0.0   0:00.00 uuidd                                                                                                                                          
    2 root      20   0       0      0      0 S   0.0  0.0   0:00.03 kthreadd                                                                                                                                       
    3 root      20   0       0      0      0 S   0.0  0.0   0:00.59 ksoftirqd/0                                                                                                                                    
    5 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 kworker/0:0H                                                                                                                                   
    8 root      20   0       0      0      0 S   0.0  0.0   2:09.41 rcu_sched                                                                                                                                      
    9 root      20   0       0      0      0 S   0.0  0.0   0:59.37 rcuos/0                                                                                                                                        
   10 root      20   0       0      0      0 S   0.0  0.0   0:58.15 rcuos/1                                      



root@cx1000-02:~# ps aux
USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root         1  0.0  0.0  29048  3160 ?        Ss   Dec11   0:04 /sbin/init
root         2  0.0  0.0      0     0 ?        S    Dec11   0:00 [kthreadd]
root         3  0.0  0.0      0     0 ?        S    Dec11   0:00 [ksoftirqd/0]
root         5  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/0:0H]
root         8  0.1  0.0      0     0 ?        S    Dec11   2:09 [rcu_sched]
root         9  0.0  0.0      0     0 ?        S    Dec11   0:59 [rcuos/0]
root        10  0.0  0.0      0     0 ?        S    Dec11   0:58 [rcuos/1]
root        11  0.0  0.0      0     0 ?        S    Dec11   1:00 [rcuos/2]
root        12  0.0  0.0      0     0 ?        S    Dec11   1:00 [rcuos/3]
root        13  0.0  0.0      0     0 ?        S    Dec11   1:01 [rcuos/4]
root        14  0.0  0.0      0     0 ?        S    Dec11   1:04 [rcuos/5]
root        15  0.0  0.0      0     0 ?        S    Dec11   0:59 [rcuos/6]
root        16  0.0  0.0      0     0 ?        S    Dec11   1:02 [rcuos/7]
root        17  0.0  0.0      0     0 ?        S    Dec11   0:55 [rcuos/8]
root        18  0.0  0.0      0     0 ?        S    Dec11   1:17 [rcuos/9]
root        19  0.0  0.0      0     0 ?        S    Dec11   1:02 [rcuos/10]
root        20  0.0  0.0      0     0 ?        S    Dec11   1:04 [rcuos/11]
root        21  0.0  0.0      0     0 ?        S    Dec11   1:03 [rcuos/12]
root        22  0.0  0.0      0     0 ?        S    Dec11   1:19 [rcuos/13]
root        23  0.0  0.0      0     0 ?        S    Dec11   1:03 [rcuos/14]
root        24  0.0  0.0      0     0 ?        S    Dec11   1:06 [rcuos/15]
root        25  0.0  0.0      0     0 ?        S    Dec11   0:00 [rcu_bh]
root        26  0.0  0.0      0     0 ?        S    Dec11   0:00 [rcuob/0]
root        27  0.0  0.0      0     0 ?        S    Dec11   0:00 [rcuob/1]
root        28  0.0  0.0      0     0 ?        S    Dec11   0:00 [rcuob/2]
root        29  0.0  0.0      0     0 ?        S    Dec11   0:00 [rcuob/3]
root        30  0.0  0.0      0     0 ?        S    Dec11   0:00 [rcuob/4]
root        31  0.0  0.0      0     0 ?        S    Dec11   0:00 [rcuob/5]
root        32  0.0  0.0      0     0 ?        S    Dec11   0:00 [rcuob/6]
root        33  0.0  0.0      0     0 ?        S    Dec11   0:00 [rcuob/7]
root        34  0.0  0.0      0     0 ?        S    Dec11   0:00 [rcuob/8]
root        35  0.0  0.0      0     0 ?        S    Dec11   0:00 [rcuob/9]
root        36  0.0  0.0      0     0 ?        S    Dec11   0:00 [rcuob/10]
root        37  0.0  0.0      0     0 ?        S    Dec11   0:00 [rcuob/11]
root        38  0.0  0.0      0     0 ?        S    Dec11   0:00 [rcuob/12]
root        39  0.0  0.0      0     0 ?        S    Dec11   0:00 [rcuob/13]
root        40  0.0  0.0      0     0 ?        S    Dec11   0:00 [rcuob/14]
root        41  0.0  0.0      0     0 ?        S    Dec11   0:00 [rcuob/15]
root        42  0.0  0.0      0     0 ?        S    Dec11   0:05 [migration/0]
root        43  0.0  0.0      0     0 ?        S    Dec11   0:00 [watchdog/0]
root        44  0.0  0.0      0     0 ?        S    Dec11   0:00 [watchdog/1]
root        45  0.0  0.0      0     0 ?        S    Dec11   0:05 [migration/1]
root        46  0.0  0.0      0     0 ?        S    Dec11   0:00 [ksoftirqd/1]
root        48  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/1:0H]
root        49  0.0  0.0      0     0 ?        S    Dec11   0:00 [watchdog/2]
root        50  0.0  0.0      0     0 ?        S    Dec11   0:05 [migration/2]
root        51  0.0  0.0      0     0 ?        S    Dec11   0:00 [ksoftirqd/2]
root        53  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/2:0H]
root        54  0.0  0.0      0     0 ?        S    Dec11   0:00 [watchdog/3]
root        55  0.0  0.0      0     0 ?        S    Dec11   0:05 [migration/3]
root        56  0.0  0.0      0     0 ?        S    Dec11   0:00 [ksoftirqd/3]
root        58  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/3:0H]
root        59  0.0  0.0      0     0 ?        S    Dec11   0:00 [watchdog/4]
root        60  0.0  0.0      0     0 ?        S    Dec11   0:05 [migration/4]
root        61  0.0  0.0      0     0 ?        S    Dec11   0:00 [ksoftirqd/4]
root        63  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/4:0H]
root        65  0.0  0.0      0     0 ?        S    Dec11   0:00 [watchdog/5]
root        66  0.0  0.0      0     0 ?        S    Dec11   0:05 [migration/5]
root        67  0.0  0.0      0     0 ?        S    Dec11   0:00 [ksoftirqd/5]
root        69  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/5:0H]
root        70  0.0  0.0      0     0 ?        S    Dec11   0:00 [watchdog/6]
root        71  0.0  0.0      0     0 ?        S    Dec11   0:05 [migration/6]
root        72  0.0  0.0      0     0 ?        S    Dec11   0:00 [ksoftirqd/6]
root        74  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/6:0H]
root        75  0.0  0.0      0     0 ?        S    Dec11   0:00 [watchdog/7]
root        76  0.0  0.0      0     0 ?        S    Dec11   0:05 [migration/7]
root        77  0.0  0.0      0     0 ?        S    Dec11   0:00 [ksoftirqd/7]
root        79  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/7:0H]
root        80  0.0  0.0      0     0 ?        S    Dec11   0:00 [watchdog/8]
root        81  0.0  0.0      0     0 ?        S    Dec11   0:07 [migration/8]
root        82  0.0  0.0      0     0 ?        S    Dec11   0:00 [ksoftirqd/8]
root        84  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/8:0H]
root        85  0.0  0.0      0     0 ?        S    Dec11   0:00 [watchdog/9]
root        86  0.0  0.0      0     0 ?        S    Dec11   0:09 [migration/9]
root        87  0.0  0.0      0     0 ?        S    Dec11   0:00 [ksoftirqd/9]
root        89  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/9:0H]
root        90  0.0  0.0      0     0 ?        S    Dec11   0:00 [watchdog/10]
root        91  0.0  0.0      0     0 ?        S    Dec11   0:07 [migration/10]
root        92  0.0  0.0      0     0 ?        S    Dec11   0:00 [ksoftirqd/10]
root        94  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/10:0H]
root        95  0.0  0.0      0     0 ?        S    Dec11   0:00 [watchdog/11]
root        96  0.0  0.0      0     0 ?        S    Dec11   0:07 [migration/11]
root        97  0.0  0.0      0     0 ?        S    Dec11   0:00 [ksoftirqd/11]
root        99  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/11:0H]
root       100  0.0  0.0      0     0 ?        S    Dec11   0:00 [watchdog/12]
root       101  0.0  0.0      0     0 ?        S    Dec11   0:07 [migration/12]
root       102  0.0  0.0      0     0 ?        S    Dec11   0:00 [ksoftirqd/12]
root       104  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/12:0H]
root       105  0.0  0.0      0     0 ?        S    Dec11   0:00 [watchdog/13]
root       106  0.0  0.0      0     0 ?        S    Dec11   0:09 [migration/13]
root       107  0.0  0.0      0     0 ?        S    Dec11   0:00 [ksoftirqd/13]
root       109  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/13:0H]
root       110  0.0  0.0      0     0 ?        S    Dec11   0:00 [watchdog/14]
root       111  0.0  0.0      0     0 ?        S    Dec11   0:07 [migration/14]
root       112  0.0  0.0      0     0 ?        S    Dec11   0:00 [ksoftirqd/14]
root       114  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/14:0H]
root       115  0.0  0.0      0     0 ?        S    Dec11   0:00 [watchdog/15]
root       116  0.0  0.0      0     0 ?        S    Dec11   0:07 [migration/15]
root       117  0.0  0.0      0     0 ?        S    Dec11   0:00 [ksoftirqd/15]
root       119  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/15:0H]
root       120  0.0  0.0      0     0 ?        S<   Dec11   0:00 [khelper]
root       121  0.0  0.0      0     0 ?        S    Dec11   0:00 [kdevtmpfs]
root       122  0.0  0.0      0     0 ?        S<   Dec11   0:00 [netns]
root       123  0.0  0.0      0     0 ?        S    Dec11   0:00 [khungtaskd]
root       124  0.0  0.0      0     0 ?        S<   Dec11   0:00 [writeback]
root       125  0.0  0.0      0     0 ?        SN   Dec11   0:00 [ksmd]
root       126  0.0  0.0      0     0 ?        SN   Dec11   0:02 [khugepaged]
root       127  0.0  0.0      0     0 ?        S<   Dec11   0:00 [crypto]
root       128  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kintegrityd]
root       129  0.0  0.0      0     0 ?        S<   Dec11   0:00 [bioset]
root       130  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kblockd]
root       131  0.0  0.0      0     0 ?        S<   Dec11   0:00 [ata_sff]
root       132  0.0  0.0      0     0 ?        S    Dec11   0:00 [khubd]
root       133  0.0  0.0      0     0 ?        S<   Dec11   0:00 [md]
root       134  0.0  0.0      0     0 ?        S<   Dec11   0:00 [devfreq_wq]
root       139  0.0  0.0      0     0 ?        S    Dec11   0:18 [kswapd0]
root       140  0.0  0.0      0     0 ?        S    Dec11   0:16 [kswapd1]
root       141  0.0  0.0      0     0 ?        S    Dec11   0:00 [fsnotify_mark]
root       142  0.0  0.0      0     0 ?        S    Dec11   0:00 [ecryptfs-kthrea]
root       154  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kthrotld]
root       155  0.0  0.0      0     0 ?        S<   Dec11   0:00 [acpi_thermal_pm]
root       162  0.0  0.0      0     0 ?        S<   Dec11   0:00 [ipv6_addrconf]
root       182  0.0  0.0      0     0 ?        S<   Dec11   0:00 [deferwq]
root       183  0.0  0.0      0     0 ?        S<   Dec11   0:00 [charger_manager]
root       258  0.0  0.0      0     0 ?        S    Dec11   0:00 [scsi_eh_0]
root       259  0.0  0.0      0     0 ?        S<   Dec11   0:00 [scsi_tmf_0]
root       260  0.0  0.0      0     0 ?        S    Dec11   0:00 [scsi_eh_1]
root       261  0.0  0.0      0     0 ?        S<   Dec11   0:00 [scsi_tmf_1]
root       262  0.0  0.0      0     0 ?        S    Dec11   0:00 [scsi_eh_2]
root       263  0.0  0.0      0     0 ?        S<   Dec11   0:00 [scsi_tmf_2]
root       264  0.0  0.0      0     0 ?        S    Dec11   0:00 [scsi_eh_3]
root       265  0.0  0.0      0     0 ?        S<   Dec11   0:00 [scsi_tmf_3]
root       266  0.0  0.0      0     0 ?        S    Dec11   0:00 [scsi_eh_4]
root       267  0.0  0.0      0     0 ?        S<   Dec11   0:00 [scsi_tmf_4]
root       268  0.0  0.0      0     0 ?        S    Dec11   0:00 [scsi_eh_5]
root       269  0.0  0.0      0     0 ?        S<   Dec11   0:00 [scsi_tmf_5]
root       286  0.0  0.0      0     0 ?        S    Dec11   0:00 [jbd2/sda1-8]
root       287  0.0  0.0      0     0 ?        S<   Dec11   0:00 [ext4-rsv-conver]
root       405  0.0  0.0  23704  2588 ?        Ss   Dec11   0:00 /sbin/cgmanager --sigstop -m name=systemd
root       431  0.0  0.0  24092  1412 ?        S    Dec11   0:00 upstart-udev-bridge --daemon
root       438  0.0  0.0  34772  2584 ?        Ss   Dec11   0:00 /lib/systemd/systemd-udevd --daemon
root       458  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/0:1H]
root       543  0.0  0.0      0     0 ?        S<   Dec11   0:00 [edac-poller]
root       545  0.0  0.0      0     0 ?        SN   Dec11   0:00 [kipmi0]
root       624  0.0  0.0  15308   196 ?        S    Dec11   0:00 upstart-file-bridge --daemon
root       627  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kvm-irqfd-clean]
syslog     628  0.0  0.0 255864  3164 ?        Ssl  Dec11   0:00 rsyslogd
root       675  0.0  0.0  15292   196 ?        S    Dec11   0:00 upstart-socket-bridge --daemon
message+   698  0.0  0.0  43992  2644 ?        Ss   Dec11   0:00 dbus-daemon --system --fork
root       805  0.0  0.0  52780 13564 ?        Ss   Dec11   0:04 /usr/bin/perl -wT /usr/sbin/munin-node
root      1052  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/10:1H]
root      1243  0.0  0.0  10272  3928 ?        Ss   Dec11   0:00 dhclient -1 -v -pf /run/dhclient.eth0.pid -lf /var/lib/dhcp/dhclient.eth0.leases eth0
root      1270  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/6:1H]
root      1492  0.0  0.0  20000  1824 tty4     Ss+  Dec11   0:00 /sbin/getty -8 38400 tty4
root      1495  0.0  0.0  20000  1844 tty5     Ss+  Dec11   0:00 /sbin/getty -8 38400 tty5
root      1496  0.0  0.0 123748  3304 ?        Ssl  Dec11   0:05 thermald --no-daemon --dbus-enable
root      1500  0.0  0.0  20000  1784 tty2     Ss+  Dec11   0:00 /sbin/getty -8 38400 tty2
root      1501  0.0  0.0  20000  1764 tty3     Ss+  Dec11   0:00 /sbin/getty -8 38400 tty3
root      1503  0.0  0.0  20000  1824 tty6     Ss+  Dec11   0:00 /sbin/getty -8 38400 tty6
root      1532  0.0  0.0  59580  2952 ?        Ss   Dec11   0:00 /usr/sbin/sshd -D
root      1554  0.0  0.0  26032  2380 ?        Ss   Dec11   0:00 cron
daemon    1555  0.0  0.0  19156   168 ?        Ss   Dec11   0:00 atd
root      1604  0.0  0.0  19500  1892 ?        Ss   Dec11   0:10 /usr/sbin/irqbalance
root      1617  0.0  0.0      0     0 ?        S    16:47   0:00 [kworker/11:1]
root      1629  0.0  0.0  12736   132 ?        Ss   Dec11   0:00 /usr/sbin/uuidd
ntp       1679  0.0  0.0  31488  2952 ?        Ss   Dec11   0:05 /usr/sbin/ntpd -p /var/run/ntpd.pid -g -u 104:112
root      1792  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/12:1H]
root      1809  0.0  0.0  20000  1808 tty1     Ss+  Dec11   0:00 /sbin/getty -8 38400 tty1
root      1840  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/3:1H]
root      1841  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/7:1H]
root      1842  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/5:1H]
root      1843  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/4:1H]
root      1846  0.0  0.0      0     0 ?        S    Dec11   0:00 [kauditd]
root      2202  0.0  0.0      0     0 ?        S    17:13   0:00 [kworker/u32:0]
root      2268  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/13:1H]
root      2985  0.0  0.0      0     0 ?        S    14:27   0:06 [kworker/1:1]
root      3038  0.0  0.0  36764  3024 ?        S    Dec11   0:00 /lib/systemd/systemd-logind
root      3284  0.0  0.0      0     0 ?        S    18:01   0:00 [kworker/5:0]
root      3436  0.0  0.0      0     0 ?        S<   Dec11   0:00 [cfg80211]
root      3875  0.0  0.0  22620  2552 pts/24   R+   18:04   0:00 ps aux
root      4366  0.0  0.0      0     0 ?        S    17:06   0:00 [kworker/1:2]
root      4993  0.0  0.0      0     0 ?        S    17:43   0:00 [kworker/9:1]
root      4995  0.0  0.0      0     0 ?        S    15:54   0:05 [kworker/11:0]
root      6661  0.0  0.0      0     0 ?        S    17:33   0:00 [kworker/5:2]
root      6824  0.0  0.0      0     0 ?        S    17:20   0:01 [kworker/15:2]
root      8826  0.0  0.0      0     0 ?        S    15:21   0:07 [kworker/12:2]
root      8955  0.0  0.0      0     0 ?        S    17:42   0:00 [kworker/13:1]
root     10060  0.0  0.0      0     0 ?        S    17:05   0:02 [kworker/3:1]
root     10179  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/2:1H]
root     10231  0.0  0.0      0     0 ?        S    15:45   0:06 [kworker/6:2]
root     10932  0.0  0.0      0     0 ?        S    15:45   0:05 [kworker/9:0]
root     12008  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/9:1H]
root     13016  0.0  0.0      0     0 ?        S    15:13   0:00 [kworker/u33:1]
root     13082  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/14:1H]
root     13105  0.0  0.0      0     0 ?        S    17:54   0:00 [kworker/u34:0]
root     13593  0.0  0.0      0     0 ?        S    17:43   0:00 [kworker/6:1]
root     16296  0.0  0.0      0     0 ?        S    17:36   0:00 [kworker/3:0]
root     16527  0.0  0.0      0     0 ?        S    17:30   0:00 [kworker/8:2]
root     16666  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/1:1H]
root     16724  0.2  0.0  34896  5704 ?        Ss   06:00   1:58 SCREEN -m -d -c /var/run/obs/worker/boot/screenrc
root     16725  0.0  0.0  76884 18872 pts/0    S<s+ 06:00   0:05 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_1 --statedir /var/run/obs/worker/1 --id cx1000-02/1 --reposerver http://buildservice.open-xc
root     16726  0.0  0.0  76836 18844 pts/1    S<s+ 06:00   0:05 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_2 --statedir /var/run/obs/worker/2 --id cx1000-02/2 --reposerver http://buildservice.open-xc
root     16727  0.0  0.0  76836 18784 pts/3    S<s+ 06:00   0:04 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_3 --statedir /var/run/obs/worker/3 --id cx1000-02/3 --reposerver http://buildservice.open-xc
root     16728  0.0  0.0  76884 18828 pts/4    S<s+ 06:00   0:05 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_4 --statedir /var/run/obs/worker/4 --id cx1000-02/4 --reposerver http://buildservice.open-xc
root     16729  0.0  0.0  76904 18780 pts/5    S<s+ 06:00   0:05 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_5 --statedir /var/run/obs/worker/5 --id cx1000-02/5 --reposerver http://buildservice.open-xc
root     16730  0.0  0.0  76912 18800 pts/6    S<s+ 06:00   0:05 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_6 --statedir /var/run/obs/worker/6 --id cx1000-02/6 --reposerver http://buildservice.open-xc
root     16731  0.0  0.0  76904 18960 pts/8    S<s+ 06:00   0:05 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_7 --statedir /var/run/obs/worker/7 --id cx1000-02/7 --reposerver http://buildservice.open-xc
root     16732  0.0  0.0  76884 18820 pts/9    S<s+ 06:00   0:05 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_8 --statedir /var/run/obs/worker/8 --id cx1000-02/8 --reposerver http://buildservice.open-xc
root     16733  0.0  0.0  76864 18792 pts/10   S<s+ 06:00   0:05 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_9 --statedir /var/run/obs/worker/9 --id cx1000-02/9 --reposerver http://buildservice.open-xc
root     16734  0.0  0.0  76904 18808 pts/11   S<s+ 06:00   0:05 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_10 --statedir /var/run/obs/worker/10 --id cx1000-02/10 --reposerver http://buildservice.open
root     16735  0.0  0.0  76832 18872 pts/12   S<s+ 06:00   0:05 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_11 --statedir /var/run/obs/worker/11 --id cx1000-02/11 --reposerver http://buildservice.open
root     16736  0.0  0.0  76832 18976 pts/13   S<s+ 06:00   0:05 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_12 --statedir /var/run/obs/worker/12 --id cx1000-02/12 --reposerver http://buildservice.open
root     16737  0.0  0.0  76832 18936 pts/14   S<s+ 06:00   0:05 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_13 --statedir /var/run/obs/worker/13 --id cx1000-02/13 --reposerver http://buildservice.open
root     16738  0.0  0.0  76904 18840 pts/15   S<s+ 06:00   0:05 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_14 --statedir /var/run/obs/worker/14 --id cx1000-02/14 --reposerver http://buildservice.open
root     16739  0.0  0.0  76904 18980 pts/16   S<s+ 06:00   0:04 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_15 --statedir /var/run/obs/worker/15 --id cx1000-02/15 --reposerver http://buildservice.open
root     16740  0.0  0.0  76884 18952 pts/17   S<s+ 06:00   0:05 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_16 --statedir /var/run/obs/worker/16 --id cx1000-02/16 --reposerver http://buildservice.open
root     16741  0.0  0.0  76904 18932 pts/18   S<s+ 06:00   0:04 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_17 --statedir /var/run/obs/worker/17 --id cx1000-02/17 --reposerver http://buildservice.open
root     16742  0.0  0.0  76836 18888 pts/19   S<s+ 06:00   0:05 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_18 --statedir /var/run/obs/worker/18 --id cx1000-02/18 --reposerver http://buildservice.open
root     16743  0.0  0.0  76904 18932 pts/20   S<s+ 06:00   0:05 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_19 --statedir /var/run/obs/worker/19 --id cx1000-02/19 --reposerver http://buildservice.open
root     16744  0.0  0.0  76904 18880 pts/21   S<s+ 06:00   0:05 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_20 --statedir /var/run/obs/worker/20 --id cx1000-02/20 --reposerver http://buildservice.open
root     16745  0.0  0.0  76904 18976 pts/22   S<s+ 06:00   0:05 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_21 --statedir /var/run/obs/worker/21 --id cx1000-02/21 --reposerver http://buildservice.open
root     16746  0.0  0.0  76904 18980 pts/23   S<s+ 06:00   0:05 /usr/bin/perl -w ./bs_worker --root /var/tmp/obs/root_22 --statedir /var/run/obs/worker/22 --id cx1000-02/22 --reposerver http://buildservice.open
root     17031  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/15:1H]
root     18030  0.0  0.0      0     0 ?        S    17:42   0:00 [kworker/15:1]
root     18234  0.0  0.0      0     0 ?        S    15:38   0:06 [kworker/14:0]
root     18338  0.0  0.0      0     0 ?        S<   Dec11   0:00 [xfsalloc]
root     18339  0.0  0.0      0     0 ?        S<   Dec11   0:00 [xfs_mru_cache]
root     18340  0.0  0.0      0     0 ?        S<   Dec11   0:00 [xfslogd]
root     18346  0.0  0.0      0     0 ?        S    Dec11   0:00 [jfsIO]
root     18347  0.0  0.0      0     0 ?        S    Dec11   0:00 [jfsCommit]
root     18348  0.0  0.0      0     0 ?        S    Dec11   0:00 [jfsCommit]
root     18349  0.0  0.0      0     0 ?        S    Dec11   0:00 [jfsCommit]
root     18350  0.0  0.0      0     0 ?        S    Dec11   0:00 [jfsCommit]
root     18351  0.0  0.0      0     0 ?        S    Dec11   0:00 [jfsCommit]
root     18352  0.0  0.0      0     0 ?        S    Dec11   0:00 [jfsCommit]
root     18353  0.0  0.0      0     0 ?        S    Dec11   0:00 [jfsCommit]
root     18354  0.0  0.0      0     0 ?        S    Dec11   0:00 [jfsCommit]
root     18355  0.0  0.0      0     0 ?        S    Dec11   0:00 [jfsCommit]
root     18356  0.0  0.0      0     0 ?        S    Dec11   0:00 [jfsCommit]
root     18357  0.0  0.0      0     0 ?        S    Dec11   0:00 [jfsCommit]
root     18358  0.0  0.0      0     0 ?        S    Dec11   0:00 [jfsCommit]
root     18359  0.0  0.0      0     0 ?        S    Dec11   0:00 [jfsCommit]
root     18360  0.0  0.0      0     0 ?        S    Dec11   0:00 [jfsCommit]
root     18361  0.0  0.0      0     0 ?        S    Dec11   0:00 [jfsCommit]
root     18362  0.0  0.0      0     0 ?        S    Dec11   0:00 [jfsCommit]
root     18363  0.0  0.0      0     0 ?        S    Dec11   0:00 [jfsSync]
root     18407  0.0  0.0      0     0 ?        S<   Dec11   0:00 [bioset]
root     18814  0.0  0.0      0     0 ?        S    17:26   0:00 [kworker/u32:1]
root     19094  0.0  0.0      0     0 ?        S    17:39   0:00 [kworker/14:1]
root     19280  0.0  0.0      0     0 ?        S    16:24   0:03 [kworker/13:0]
root     21137  0.0  0.0      0     0 ?        S    15:36   0:06 [kworker/2:2]
root     21187  0.0  0.0  99676  6488 ?        Ss   16:23   0:02 sshd: root@pts/24   
root     21915  0.0  0.0      0     0 ?        S    17:20   0:00 [kworker/2:1]
root     22198  0.0  0.0      0     0 ?        S    16:48   0:01 [kworker/7:1]
root     22260  0.0  0.0      0     0 ?        S    17:23   0:01 [kworker/5:1]
root     23222  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/11:1H]
root     23464  0.0  0.0      0     0 ?        S    17:18   0:01 [kworker/8:0]
root     23637  0.0  0.0      0     0 ?        S    16:40   0:02 [kworker/0:2]
root     23909  0.0  0.0  26736  5504 pts/24   Ss   16:23   0:00 -bash
root     24305  0.0  0.0      0     0 ?        S    17:41   0:00 [kworker/4:1]
root     24372  0.0  0.0      0     0 ?        S<   Dec11   0:00 [kworker/8:1H]
root     24583  0.0  0.0      0     0 ?        S    11:22   0:00 [kworker/u33:0]
root     24956  0.0  0.0      0     0 ?        S    17:42   0:00 [kworker/7:2]
root     25898  0.0  0.0      0     0 ?        S    17:15   0:01 [kworker/10:1]
root     26737  0.0  0.0      0     0 ?        S    17:06   0:00 [kworker/u34:1]
root     26951  0.0  0.0      0     0 ?        S    17:35   0:00 [kworker/12:1]
root     28046  0.0  0.0      0     0 ?        S    17:39   0:00 [kworker/10:2]
root     30090  0.0  0.0      0     0 ?        S    17:38   0:00 [kworker/0:0]
root     32139  0.0  0.0      0     0 ?        S    17:17   0:01 [kworker/4:0]

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1401817

Title:
  memory leak with unknown reason after upgrade to utopic

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I'm not sure if this is the right component/package. We are not able
  to identify a package/program which could be responsible for this bug,
  so we assume it is the kernel or at least a kernel configuration.

  Since the upgrade from trusty to utopic at October 27., our three
  servers for package building are massively swapping. This leads to by
  a factor of four slower build times. There were no configuration
  changes at all.

  Munin graphs of one of the affected servers are attached.

  The system has 48GB memory, and we have configured several ramdisks:

  root@cx1000-02:~# mount | grep -E "tmpfs|ramfs"
  none on /sys/fs/cgroup type tmpfs (rw,uid=0,gid=0,mode=0755,size=1024)
  udev on /dev type devtmpfs (rw,mode=0755)
  tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
  none on /run/lock type tmpfs (rw,nodev,noexec,nosuid,size=5242880)
  none on /run/shm type tmpfs (rw,nosuid,nodev)
  none on /run/user type tmpfs (rw,nodev,noexec,nosuid,size=104857600,mode=0755)
  tmpfs on /var/tmp/obs type tmpfs (rw,size=36G)
  tmpfs on /run/obs type tmpfs (rw,relatime,size=1G)
  ramfs on /var/obscache type ramfs (rw)
  tmpfs on /run/obs type tmpfs (rw,relatime,size=1048576k)

  The build service uses several chroot environments to build packages
  for several distributions (http://openbuildservice.org/).

  You don't see any process which allocates so much memory with 'top'.
  Even after stopping the build service and unmounting /var/tmp/obs you
  are not able to deactivate the swap via swapoff -a:

  root@cx1000-02:~# swapoff -a
  swapoff: /dev/sda5: swapoff failed: Cannot allocate memory

  We also tested the latest kernel (3.16.0-28) and an old trusty kernel
  (3.13.0-40) without success. Also patching perl to exclude the perl
  bug https://rt.perl.org/Public/Bug/Display.html?id=123198 as root
  cause doesn't help.

  We don't have any idea what's the cause for this problem...

  We can deploy debug packages or anything else on the system, so please
  hesitate to ask for any information or help.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-26-generic 3.16.0-26.35
  ProcVersionSignature: Ubuntu 3.16.0-26.35-generic 3.16.7-ckt1
  Uname: Linux 3.16.0-26-generic x86_64
  AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 2: ls: cannot access /dev/snd/: No such file or directory
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  Date: Fri Dec 12 09:54:36 2014
  HibernationDevice: RESUME=UUID=531cb8f2-e194-45a7-a13c-3167aacf89bf
  InstallationDate: Installed on 2011-09-20 (1178 days ago)
  InstallationMedia: Ubuntu-Server 11.04 "Natty Narwhal" - Release amd64 (20110426)
  IwConfig:
   eth0      no wireless extensions.
   
   eth1      no wireless extensions.
   
   lo        no wireless extensions.
  MachineType: FUJITSU PRIMERGY CX122 S1
  PciMultimedia:
   
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-26-generic root=UUID=6e5b9bee-ccdf-4e6f-b09d-759312aeb3e0 ro quiet
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-26-generic N/A
   linux-backports-modules-3.16.0-26-generic  N/A
   linux-firmware                             1.138
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: Upgraded to utopic on 2014-10-27 (45 days ago)
  dmi.bios.date: 05/24/2011
  dmi.bios.vendor: FUJITSU // Phoenix Technologies Ltd.
  dmi.bios.version: 6.00 Rev. 1.10.2899.A1
  dmi.board.asset.tag: -
  dmi.board.name: D2899
  dmi.board.vendor: FUJITSU
  dmi.board.version: S26361-D2899-A11 WGS02 GS01
  dmi.chassis.asset.tag: YLAM001377
  dmi.chassis.type: 23
  dmi.chassis.vendor: FUJITSU
  dmi.chassis.version: CX122S1R
  dmi.modalias: dmi:bvnFUJITSU//PhoenixTechnologiesLtd.:bvr6.00Rev.1.10.2899.A1:bd05/24/2011:svnFUJITSU:pnPRIMERGYCX122S1:pvrGS01:rvnFUJITSU:rnD2899:rvrS26361-D2899-A11WGS02GS01:cvnFUJITSU:ct23:cvrCX122S1R:
  dmi.product.name: PRIMERGY CX122 S1
  dmi.product.version: GS01
  dmi.sys.vendor: FUJITSU

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References