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Message-ID: <alpine.DEB.2.00.1101041922420.26152@chino.kir.corp.google.com>
Date:	Tue, 4 Jan 2011 19:32:15 -0800 (PST)
From:	David Rientjes <rientjes@...gle.com>
To:	"Figo.zhang" <zhangtianfei@...dcoretech.com>
cc:	lkml <linux-kernel@...r.kernel.org>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	Andrew Morton <akpm@...l.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	"Figo.zhang" <figo1802@...il.com>,
	Wu Fengguang <fengguang.wu@...el.com>
Subject: Re: [PATCH v3]mm/oom-kill: direct hardware access processes should
 get bonus

On Tue, 4 Jan 2011, Figo.zhang wrote:

> i had send the patch to protect the hardware access processes for oom-killer
> before, but rientjes have not agree with me.
> 

My objection wasn't just limited to CAP_SYS_RAWIO but rather to all 
arbitrary heuristics that make the badness scoring less than predictable.  
oom_badness()'s sole responsibility as implemented is to identify the most 
memory-hogging task that is eligible for kill in the current context and 
adding additional heuristics on top of that beyond CAP_SYS_ADMIN will 
slowly make it evolve into what we had before.  It also depreciates the 
unit of the new userspace tunable.

> but today i catch log from my desktop. oom-killer have kill my "minicom" and
> "Xorg". so i think it should add protection about it.
> 

Because Xorg was killed does necessarily mean we need to add more 
heursitics to the oom killer.  In fact, if you are to again suggest the 3% 
memory bonus for these tasks, you should be able to show that the same 
result cannot happen even with your patch.  I don't believe you've made a 
case for that and making all CAP_SYS_RAWIO tasks immune from oom killing 
as a default choice would be inappropriate.

If the kernel is killing Xorg, that means it is the most memory-hogging 
task on the system and it is following the heuristic's core principle: 
kill the most memory-hogging task to free a large amount of memory to 
prevent additional oom kills in the near future if allowed by userspace.  
The kernel doesn't realize that Xorg is important to you and me, it needs 
to tell it using /proc/pid/oom_score_adj.  Throwing additional heuristics 
for things like CAP_SYS_RAWIO is short-sighted, however, because the 
capability itself doesn't have any direct correlation to a memory quantity 
or oom killing preference.

[snipped the first oom killer log because it was incomplete]

> > Jan  4 15:22:51 figo-desktop kernel: minicom invoked oom-killer:
> > gfp_mask=0x201da, order=0, oom_adj=0, oom_score_adj=0
> > Jan  4 15:22:51 figo-desktop kernel: minicom cpuset=/ mems_allowed=0
> > Jan  4 15:22:51 figo-desktop kernel: Pid: 18613, comm: minicom Not tainted
> > 2.6.36-ARCH #1
> > Jan  4 15:22:51 figo-desktop kernel: Call Trace:
> > Jan  4 15:22:51 figo-desktop kernel: [<c10c11d0>]
> > dump_header.clone.5+0x80/0x1e0
> > Jan  4 15:22:51 figo-desktop kernel: [<c10c153c>]
> > oom_kill_process+0x5c/0x1c0
> > Jan  4 15:22:51 figo-desktop kernel: [<c10c171d>] ?
> > select_bad_process.clone.7+0x7d/0xd0
> > Jan  4 15:22:51 figo-desktop kernel: [<c10c1a0f>] out_of_memory+0xbf/0x1d0
> > Jan  4 15:22:51 figo-desktop kernel: [<c10c18d8>] ?
> > try_set_zonelist_oom+0xc8/0xe0
> > Jan  4 15:22:51 figo-desktop kernel: [<c10c5288>]
> > __alloc_pages_nodemask+0x5e8/0x600
> > Jan  4 15:22:51 figo-desktop kernel: [<c10c6c35>]
> > __do_page_cache_readahead+0x105/0x230
> > Jan  4 15:22:51 figo-desktop kernel: [<c10c6fc1>] ra_submit+0x21/0x30
> > Jan  4 15:22:51 figo-desktop kernel: [<c10bf31b>] filemap_fault+0x36b/0x3e0
> > Jan  4 15:22:51 figo-desktop kernel: [<c10d637b>] __do_fault+0x3b/0x4f0
> > Jan  4 15:22:51 figo-desktop kernel: [<c122e619>] ?
> > check_modem_status+0x19/0x1d0
> > Jan  4 15:22:51 figo-desktop kernel: [<c10befb0>] ? filemap_fault+0x0/0x3e0
> > Jan  4 15:22:51 figo-desktop kernel: [<c10d95c1>]
> > handle_mm_fault+0x111/0x970
> > Jan  4 15:22:51 figo-desktop kernel: [<c1172121>] ?
> > tomoyo_init_request_info+0x41/0x50
> > Jan  4 15:22:51 figo-desktop kernel: [<c1028d60>] ? do_page_fault+0x0/0x3e0
> > Jan  4 15:22:51 figo-desktop kernel: [<c1028eb0>] do_page_fault+0x150/0x3e0
> > Jan  4 15:22:51 figo-desktop kernel: [<c1170eb2>] ?
> > tomoyo_file_ioctl+0x12/0x20
> > Jan  4 15:22:51 figo-desktop kernel: [<c110c43f>] ? sys_ioctl+0x5f/0x80
> > Jan  4 15:22:51 figo-desktop kernel: [<c1028d60>] ? do_page_fault+0x0/0x3e0
> > Jan  4 15:22:51 figo-desktop kernel: [<c130753b>] error_code+0x67/0x6c
> > Jan  4 15:22:51 figo-desktop kernel: Mem-Info:
> > Jan  4 15:22:51 figo-desktop kernel: DMA per-cpu:
> > Jan  4 15:22:51 figo-desktop kernel: CPU    0: hi:    0, btch:   1 usd:   0
> > Jan  4 15:22:51 figo-desktop kernel: CPU    1: hi:    0, btch:   1 usd:   0
> > Jan  4 15:22:51 figo-desktop kernel: Normal per-cpu:
> > Jan  4 15:22:51 figo-desktop kernel: CPU    0: hi:  186, btch:  31 usd:  61
> > Jan  4 15:22:54 figo-desktop kernel: CPU    1: hi:  186, btch:  31 usd:   1
> > Jan  4 15:22:54 figo-desktop kernel: HighMem per-cpu:
> > Jan  4 15:22:54 figo-desktop kernel: CPU    0: hi:  186, btch:  31 usd:  30
> > Jan  4 15:22:54 figo-desktop kernel: CPU    1: hi:  186, btch:  31 usd:  30
> > Jan  4 15:22:54 figo-desktop kernel: active_anon:191656 inactive_anon:101947
> > isolated_anon:0
> > Jan  4 15:22:54 figo-desktop kernel: active_file:54186 inactive_file:122506
> > isolated_file:0
> > Jan  4 15:22:54 figo-desktop kernel: unevictable:17 dirty:0 writeback:0
> > unstable:0
> > Jan  4 15:22:54 figo-desktop kernel: free:11958 slab_reclaimable:5450
> > slab_unreclaimable:6123
> > Jan  4 15:22:54 figo-desktop kernel: mapped:49649 shmem:29219
> > pagetables:2559 bounce:0
> > Jan  4 15:22:54 figo-desktop kernel: DMA free:7960kB min:64kB low:80kB
> > high:96kB active_anon:4772kB inactive_anon:1180kB active_file:524kB
> > inactive_file:768kB unevictable:0kB isolated(anon):0kB isolated(file):0kB
> > present:15788kB mlocked:0kB dirty:0kB writeback:0kB mapped:592kB shmem:348kB
> > slab_reclaimable:480kB slab_unreclaimable:112kB kernel_stack:8kB
> > pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:2689
> > all_unreclaimable? yes
> > Jan  4 15:22:55 figo-desktop kernel: lowmem_reserve[]: 0 865 1980 1980
> > Jan  4 15:22:55 figo-desktop kernel: Normal free:39364kB min:3728kB
> > low:4660kB high:5592kB active_anon:224324kB inactive_anon:226020kB
> > active_file:86076kB inactive_file:207880kB unevictable:68kB
> > isolated(anon):0kB isolated(file):0kB present:885944kB mlocked:68kB
> > dirty:0kB writeback:0kB mapped:57272kB shmem:42072kB
> > slab_reclaimable:21320kB slab_unreclaimable:24380kB kernel_stack:3224kB
> > pagetables:10236kB unstable:0kB bounce:0kB writeback_tmp:0kB
> > pages_scanned:445029 all_unreclaimable? yes
> > Jan  4 15:22:55 figo-desktop kernel: lowmem_reserve[]: 0 0 8921 8921
> > Jan  4 15:22:55 figo-desktop kernel: HighMem free:508kB min:512kB low:1712kB
> > high:2912kB active_anon:537528kB inactive_anon:180588kB active_file:130144kB
> > inactive_file:281376kB unevictable:0kB isolated(anon):0kB isolated(file):0kB
> > present:1141984kB mlocked:0kB dirty:0kB writeback:0kB mapped:140732kB
> > shmem:74456kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB
> > pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB
> > pages_scanned:644938 all_unreclaimable? yes
> > Jan  4 15:22:55 figo-desktop kernel: lowmem_reserve[]: 0 0 0 0
> > Jan  4 15:22:55 figo-desktop kernel: DMA: 1500*4kB 245*8kB 0*16kB 0*32kB
> > 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 7960kB
> > Jan  4 15:22:55 figo-desktop kernel: Normal: 1399*4kB 3723*8kB 91*16kB
> > 21*32kB 5*64kB 2*128kB 3*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 39364kB
> > Jan  4 15:22:55 figo-desktop kernel: HighMem: 27*4kB 10*8kB 18*16kB 1*32kB
> > 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 508kB
> > Jan  4 15:22:55 figo-desktop kernel: 206073 total pagecache pages
> > Jan  4 15:22:55 figo-desktop kernel: 151 pages in swap cache
> > Jan  4 15:22:55 figo-desktop kernel: Swap cache stats: add 889409, delete
> > 889258, find 277087/391428
> > Jan  4 15:22:55 figo-desktop kernel: Free swap  = -1636kB
> > Jan  4 15:22:55 figo-desktop kernel: Total swap = 0kB
> > Jan  4 15:22:55 figo-desktop kernel: 515070 pages RAM
> > Jan  4 15:22:55 figo-desktop kernel: 287745 pages HighMem
> > Jan  4 15:22:55 figo-desktop kernel: 8297 pages reserved
> > Jan  4 15:22:55 figo-desktop kernel: 304095 pages shared
> > Jan  4 15:22:55 figo-desktop kernel: 306148 pages non-shared
> > Jan  4 15:22:55 figo-desktop kernel: [ pid ]   uid  tgid total_vm      rss
> > cpu oom_adj oom_score_adj name
> > Jan  4 15:22:55 figo-desktop kernel: [  583]     0   583      581      207
> > 1     -17         -1000 udevd
> > Jan  4 15:22:55 figo-desktop kernel: [ 1303]     0  1303      868       37
> > 0       0             0 syslog-ng
> > Jan  4 15:22:55 figo-desktop kernel: [ 1304]     0  1304     1604      350
> > 0       0             0 syslog-ng
> > Jan  4 15:22:55 figo-desktop kernel: [ 1306]    81  1306      808      396
> > 1       0             0 dbus-daemon
> > Jan  4 15:22:55 figo-desktop kernel: [ 1309]    82  1309     3777      406
> > 0       0             0 hald
> > Jan  4 15:22:55 figo-desktop kernel: [ 1310]     0  1310      903      130
> > 1       0             0 hald-runner
> > Jan  4 15:22:55 figo-desktop kernel: [ 1339]     0  1339      919       90
> > 1       0             0 hald-addon-inpu
> > Jan  4 15:22:55 figo-desktop kernel: [ 1357]     0  1357      919      184
> > 1       0             0 hald-addon-stor
> > Jan  4 15:22:55 figo-desktop kernel: [ 1359]    82  1359      824      107
> > 1       0             0 hald-addon-acpi
> > Jan  4 15:22:55 figo-desktop kernel: [ 1448]     0  1448      616      294
> > 0       0             0 crond
> > Jan  4 15:22:55 figo-desktop kernel: [ 1477]     0  1477      720      108
> > 0       0             0 mysqld_safe
> > Jan  4 15:22:55 figo-desktop kernel: [ 1484]     0  1484     3580      269
> > 0       0             0 gdm-binary
> > Jan  4 15:22:55 figo-desktop kernel: [ 1497]     0  1497      440       67
> > 1       0             0 agetty
> > Jan  4 15:22:55 figo-desktop kernel: [ 1498]     0  1498      440       67
> > 0       0             0 agetty
> > Jan  4 15:22:55 figo-desktop kernel: [ 1499]     0  1499      440       67
> > 0       0             0 agetty
> > Jan  4 15:22:55 figo-desktop kernel: [ 1500]     0  1500      440       67
> > 1       0             0 agetty
> > Jan  4 15:22:55 figo-desktop kernel: [ 1501]     0  1501      440       67
> > 0       0             0 agetty
> > Jan  4 15:22:55 figo-desktop kernel: [ 1502]     0  1502      440       68
> > 0       0             0 agetty
> > Jan  4 15:22:55 figo-desktop kernel: [ 1553]     0  1553     6607      619
> > 0       0             0 NetworkManager
> > Jan  4 15:22:55 figo-desktop kernel: [ 1592]     0  1592     2256      330
> > 0       0             0 cupsd
> > Jan  4 15:22:55 figo-desktop kernel: [ 1597]    89  1597    29903     2812
> > 1       0             0 mysqld
> > Jan  4 15:22:55 figo-desktop kernel: [ 1598]     0  1598     1652      147
> > 1     -17         -1000 sshd
> > Jan  4 15:22:55 figo-desktop kernel: [ 1612]     0  1612     6263      508
> > 1       0             0 polkitd
> > Jan  4 15:22:55 figo-desktop kernel: [ 1613]     0  1613     2015      123
> > 1       0             0 vmware-usbarbit
> > Jan  4 15:22:55 figo-desktop kernel: [ 1617]     0  1617     2887     1603
> > 0       0             0 cntlm
> > Jan  4 15:22:55 figo-desktop kernel: [ 1620]     0  1620     4398      366
> > 0       0             0 gdm-simple-slav
> > Jan  4 15:22:55 figo-desktop kernel: [ 1636]     0  1636    37298    12186
> > 0       0             0 Xorg
> > Jan  4 15:22:55 figo-desktop kernel: [ 1638]     0  1638     1248       88
> > 0       0             0 wpa_supplicant
> > Jan  4 15:22:55 figo-desktop kernel: [ 1720]     0  1720     4789     1555
> > 1       0             0 httpd
> > Jan  4 15:22:55 figo-desktop kernel: [ 1722]     0  1722      488       93
> > 0       0             0 dhcpcd
> > Jan  4 15:22:55 figo-desktop kernel: [ 1732]     0  1732      519       62
> > 1       0             0 vmnet-bridge
> > Jan  4 15:22:55 figo-desktop kernel: [ 1750]     0  1750     4922      304
> > 1       0             0 smbd
> > Jan  4 15:22:55 figo-desktop kernel: [ 1764]     0  1764      655       39
> > 1       0             0 vmnet-dhcpd
> > Jan  4 15:22:55 figo-desktop kernel: [ 1772]     0  1772      513       15
> > 0       0             0 vmnet-netifup
> > Jan  4 15:22:55 figo-desktop kernel: [ 1774]     0  1774      655       39
> > 0       0             0 vmnet-dhcpd
> > Jan  4 15:22:55 figo-desktop kernel: [ 1776]     0  1776     4922      225
> > 0       0             0 smbd
> > Jan  4 15:22:55 figo-desktop kernel: [ 1778]     0  1778      634       44
> > 0       0             0 vmnet-natd
> > Jan  4 15:22:55 figo-desktop kernel: [ 1780]     0  1780      513       14
> > 1       0             0 vmnet-netifup
> > Jan  4 15:22:55 figo-desktop kernel: [ 1796]     0  1796     6677      329
> > 0       0             0 console-kit-dae
> > Jan  4 15:22:55 figo-desktop kernel: [ 1899]   120  1899     6587      598
> > 0       0             0 polkit-gnome-au
> > Jan  4 15:22:55 figo-desktop kernel: [ 1903]     0  1903     3905      245
> > 0       0             0 gdm-session-wor
> > Jan  4 15:22:55 figo-desktop kernel: [ 1906]     0  1906     3677      314
> > 1       0             0 upowerd
> > Jan  4 15:22:55 figo-desktop kernel: [ 1974]  1000  1974    10963     1248
> > 0       0             0 gnome-keyring-d
> > Jan  4 15:22:55 figo-desktop kernel: [ 1993]  1000  1993     9253      776
> > 0       0             0 gnome-session
> > Jan  4 15:22:55 figo-desktop kernel: [ 2012]  1000  2012      796      103
> > 0       0             0 dbus-launch
> > Jan  4 15:22:55 figo-desktop kernel: [ 2013]  1000  2013     5854     4985
> > 0       0             0 dbus-daemon
> > Jan  4 15:22:55 figo-desktop kernel: [ 2015]  1000  2015      887       54
> > 0       0             0 ssh-agent
> > Jan  4 15:22:55 figo-desktop kernel: [ 2022]  1000  2022    10904     4789
> > 0       0             0 fcitx
> > Jan  4 15:22:55 figo-desktop kernel: [ 2032]  1000  2032    41764     2007
> > 0       0             0 gnome-settings-
> > Jan  4 15:22:55 figo-desktop kernel: [ 2036]  1000  2036     2367      416
> > 0       0             0 gvfsd
> > Jan  4 15:22:55 figo-desktop kernel: [ 2039]  1000  2039    85188    29636
> > 1       0             0 metacity
> > Jan  4 15:22:55 figo-desktop kernel: [ 2049]  1000  2049    14162      280
> > 1       0             0 gvfs-fuse-daemo
> > Jan  4 15:22:55 figo-desktop kernel: [ 2053]  1000  2053    76657     3620
> > 0       0             0 gnome-panel
> > Jan  4 15:22:55 figo-desktop kernel: [ 2056]  1000  2056    10978      563
> > 1       0             0 gvfs-gdu-volume
> > Jan  4 15:22:55 figo-desktop kernel: [ 2058]     0  2058     5767      503
> > 0       0             0 udisks-daemon
> > Jan  4 15:22:55 figo-desktop kernel: [ 2059]     0  2059     1291       72
> > 0       0             0 udisks-daemon
> > Jan  4 15:22:55 figo-desktop kernel: [ 2069]  1000  2069   168292    50943
> > 0       0             0 nautilus
> > Jan  4 15:22:55 figo-desktop kernel: [ 2071]  1000  2071    12907      223
> > 0       0             0 bonobo-activati
> > Jan  4 15:22:55 figo-desktop kernel: [ 2081]  1000  2081     1633      136
> > 0       0             0 sh
> > Jan  4 15:22:55 figo-desktop kernel: [ 2082]  1000  2082     1666      136
> > 1       0             0 thunderbird
> > Jan  4 15:22:55 figo-desktop kernel: [ 2084]  1000  2084    46718     3501
> > 1       0             0 wnck-applet
> > Jan  4 15:22:55 figo-desktop kernel: [ 2086]  1000  2086    42862     1487
> > 0       0             0 polkit-gnome-au
> > Jan  4 15:22:55 figo-desktop kernel: [ 2087]  1000  2087   285933     1584
> > 0       0             0 nm-applet
> > Jan  4 15:22:55 figo-desktop kernel: [ 2104]  1000  2104     5056      715
> > 0       0             0 gdu-notificatio
> > Jan  4 15:22:55 figo-desktop kernel: [ 2107]  1000  2107     1666      142
> > 1       0             0 run-mozilla.sh
> > Jan  4 15:22:55 figo-desktop kernel: [ 2108]  1000  2108    39395      973
> > 0       0             0 gnome-power-man
> > Jan  4 15:22:55 figo-desktop kernel: [ 2109]  1000  2109     7886      709
> > 0       0             0 vino-server
> > Jan  4 15:22:55 figo-desktop kernel: [ 2110]  1000  2110    10764      791
> > 1       0             0 evolution-alarm
> > Jan  4 15:22:55 figo-desktop kernel: [ 2114]  1000  2114   167865    29673
> > 1       0             0 thunderbird-bin
> > Jan  4 15:22:55 figo-desktop kernel: [ 2121]  1000  2121    42098     1965
> > 0       0             0 notify-osd
> > Jan  4 15:22:55 figo-desktop kernel: [ 2125]  1000  2125    42488     1203
> > 1       0             0 cpufreq-applet
> > Jan  4 15:22:55 figo-desktop kernel: [ 2126]  1000  2126    41394     1148
> > 1       0             0 multiload-apple
> > Jan  4 15:22:55 figo-desktop kernel: [ 2129]  1000  2129    64405     1827
> > 0       0             0 mixer_applet2
> > Jan  4 15:22:55 figo-desktop kernel: [ 2131]  1000  2131    75346     2489
> > 0       0             0 clock-applet
> > Jan  4 15:22:55 figo-desktop kernel: [ 2132]  1000  2132    41163      930
> > 1       0             0 notification-ar
> > Jan  4 15:22:55 figo-desktop kernel: [ 2149]  1000  2149    15325      697
> > 1       0             0 e-calendar-fact
> > Jan  4 15:22:55 figo-desktop kernel: [ 2153]  1000  2153     7497     1008
> > 0       0             0 gnome-screensav
> > Jan  4 15:22:55 figo-desktop kernel: [ 2155]  1000  2155     3848      202
> > 1       0             0 pxgconf
> > Jan  4 15:22:55 figo-desktop kernel: [ 2163]  1000  2163     1781      342
> > 0       0             0 mission-control
> > Jan  4 15:22:55 figo-desktop kernel: [ 2173]  1000  2173     4486      428
> > 0       0             0 gvfsd-trash
> > Jan  4 15:22:55 figo-desktop kernel: [ 2186]     0  2186     3543      192
> > 1       0             0 system-tools-ba
> > Jan  4 15:22:55 figo-desktop kernel: [ 2210]  1000  2210     2202      238
> > 0       0             0 gvfsd-burn
> > Jan  4 15:22:55 figo-desktop kernel: [ 2245]  1000  2245     3895     1730
> > 0       0             0 gvfsd-metadata
> > Jan  4 15:22:55 figo-desktop kernel: [ 2274]  1000  2274    22823      424
> > 0       0             0 conky
> > Jan  4 15:22:55 figo-desktop kernel: [ 2281]     0  2281     3295     2278
> > 0       0             0 SystemToolsBack
> > Jan  4 15:22:55 figo-desktop kernel: [ 2663]  1000  2663    68807     3042
> > 1       0             0 gnome-terminal
> > Jan  4 15:22:55 figo-desktop kernel: [ 2683]  1000  2683      451       76
> > 0       0             0 gnome-pty-helpe
> > Jan  4 15:22:55 figo-desktop kernel: [ 2685]  1000  2685     2072      570
> > 0       0             0 bash
> > Jan  4 15:22:55 figo-desktop kernel: [ 2885]     0  2885     1489      119
> > 0       0             0 sudo
> > Jan  4 15:22:55 figo-desktop kernel: [ 2886]     0  2886     6273      355
> > 1       0             0 vim
> > Jan  4 15:22:55 figo-desktop kernel: [ 2887]  1000  2887      472       84
> > 0       0             0 ping
> > Jan  4 15:22:55 figo-desktop kernel: [ 2892]  1000  2892      472       83
> > 1       0             0 ping
> > Jan  4 15:22:55 figo-desktop kernel: [ 2894]  1000  2894    76113     5890
> > 0       0             0 vmware
> > Jan  4 15:22:55 figo-desktop kernel: [ 2919]  1000  2919    51497     3315
> > 1       0             0 vmware-tray
> > Jan  4 15:22:55 figo-desktop kernel: [ 2954]  1000  2954    48676     1589
> > 0       0             0 vmware-unity-he
> > Jan  4 15:22:55 figo-desktop kernel: [ 2988]  1000  2988   190471    42400
> > 0       0             0 vmware-vmx
> > Jan  4 15:22:55 figo-desktop kernel: [ 3207]  1000  3207     4377      362
> > 1       0             0 gvfsd-computer
> > Jan  4 15:22:55 figo-desktop kernel: [ 3211]  1000  3211     9920      509
> > 0       0             0 gvfsd-smb-brows
> > Jan  4 15:22:55 figo-desktop kernel: [ 3217]  1000  3217     9876      569
> > 0       0             0 gvfsd-smb
> > Jan  4 15:22:55 figo-desktop kernel: [15186]  1000 15186     2069      558
> > 1       0             0 bash
> > Jan  4 15:22:55 figo-desktop kernel: [17451]  1000 17451     5679      503
> > 0       0             0 dconf-service
> > Jan  4 15:22:55 figo-desktop kernel: [19085]  1000 19085     1576      149
> > 0       0             0 ssh
> > Jan  4 15:22:55 figo-desktop kernel: [19261]  1000 19261     1682      967
> > 0       0             0 wineserver
> > Jan  4 15:22:55 figo-desktop kernel: [19266]  1000 19266   399085      212
> > 0       0             0 services.exe
> > Jan  4 15:22:55 figo-desktop kernel: [19269]  1000 19269   399117      158
> > 1       0             0 winedevice.exe
> > Jan  4 15:22:55 figo-desktop kernel: [19342]  1000 19342   404518      643
> > 0       0             0 explorer.exe
> > Jan  4 15:22:55 figo-desktop kernel: [19344]  1000 19344   550020    11028
> > 1       0             0 insight3.exe
> > Jan  4 15:22:55 figo-desktop kernel: [  360]  1000   360     2069      541
> > 1       0             0 bash
> > Jan  4 15:22:55 figo-desktop kernel: [ 9821]  1000  9821   166228     2915
> > 0       0             0 stardict
> > Jan  4 15:22:55 figo-desktop kernel: [14614]  1000 14614     2040      523
> > 1       0             0 bash
> > Jan  4 15:22:55 figo-desktop kernel: [17002]  1000 17002     2069      541
> > 0       0             0 bash
> > Jan  4 15:22:55 figo-desktop kernel: [18612]     0 18612     1536      125
> > 1       0             0 sudo
> > Jan  4 15:22:55 figo-desktop kernel: [18613]     0 18613     1988      608
> > 1       0             0 minicom
> > Jan  4 15:22:55 figo-desktop kernel: [21183]  1000 21183     2041      517
> > 1       0             0 bash
> > Jan  4 15:22:55 figo-desktop kernel: [21194]  1000 21194     1611      125
> > 0       0             0 ssh
> > Jan  4 15:22:55 figo-desktop kernel: [22451]  1000 22451     2069      578
> > 1       0             0 bash
> > Jan  4 15:22:55 figo-desktop kernel: [23428]  1000 23428     6475      554
> > 1       0             0 vim
> > Jan  4 15:22:55 figo-desktop kernel: [23484]  1000 23484     6501      594
> > 1       0             0 vim
> > Jan  4 15:22:55 figo-desktop kernel: [23549]  1000 23549     6501      594
> > 0       0             0 vim
> > Jan  4 15:22:55 figo-desktop kernel: [23642]  1000 23642     9865      594
> > 0       0             0 gvfsd-smb
> > Jan  4 15:22:55 figo-desktop kernel: [26358]  1000 26358   407339     5019
> > 1       0             0 insight3.exe
> > Jan  4 15:22:55 figo-desktop kernel: [29711]  1000 29711     9943      617
> > 0       0             0 gvfsd-smb
> > Jan  4 15:22:55 figo-desktop kernel: [26156]  1000 26156    61269     9179
> > 0       0             0 skype
> > Jan  4 15:22:55 figo-desktop kernel: [32490]  1000 32490     2647      684
> > 0       0             0 gconfd-2
> > Jan  4 15:22:55 figo-desktop kernel: [10622]  1000 10622     2072      725
> > 1       0             0 bash
> > Jan  4 15:22:55 figo-desktop kernel: [10634]  1000 10634     1576      156
> > 0       0             0 ssh
> > Jan  4 15:22:55 figo-desktop kernel: [15410]  1000 15410    76559    12161
> > 0       0             0 evince
> > Jan  4 15:22:55 figo-desktop kernel: [15415]  1000 15415     5490      217
> > 1       0             0 evinced
> > Jan  4 15:22:55 figo-desktop kernel: [16754]  1000 16754     9899      485
> > 0       0             0 gvfsd-smb
> > Jan  4 15:22:55 figo-desktop kernel: [16772]  1000 16772     9900      500
> > 0       0             0 gvfsd-smb
> > Jan  4 15:22:55 figo-desktop kernel: [25390]  1000 25390   407306     2164
> > 1       0             0 insight3.exe
> > Jan  4 15:22:55 figo-desktop kernel: [ 2127]  1000  2127     1609      125
> > 0       0             0 ssh
> > Jan  4 15:22:55 figo-desktop kernel: [10661]    33 10661     4775     1510
> > 1       0             0 httpd
> > Jan  4 15:22:55 figo-desktop kernel: [10662]    33 10662     4823     1569
> > 0       0             0 httpd
> > Jan  4 15:22:55 figo-desktop kernel: [10663]    33 10663     4823     1570
> > 0       0             0 httpd
> > Jan  4 15:22:55 figo-desktop kernel: [10664]    33 10664     4823     1569
> > 0       0             0 httpd
> > Jan  4 15:22:55 figo-desktop kernel: [10665]    33 10665     4823     1569
> > 0       0             0 httpd
> > Jan  4 15:22:55 figo-desktop kernel: [10666]    33 10666     4823     1569
> > 1       0             0 httpd
> > Jan  4 15:22:55 figo-desktop kernel: [32159]  1000 32159   166096    39479
> > 0       0             0 firefox
> > Jan  4 15:22:55 figo-desktop kernel: [32228]    33 32228     4823     1512
> > 0       0             0 httpd
> > Jan  4 15:22:55 figo-desktop kernel: [32233]    33 32233     4857     1596
> > 1       0             0 httpd
> > Jan  4 15:22:55 figo-desktop kernel: [32234]    33 32234     4857     1597
> > 1       0             0 httpd
> > Jan  4 15:22:55 figo-desktop kernel: [32241]    33 32241     4789     1536
> > 1       0             0 httpd
> > Jan  4 15:22:55 figo-desktop kernel: [32246]    33 32246     4789     1536
> > 0       0             0 httpd
> > Jan  4 15:22:55 figo-desktop kernel: [32268]  1000 32268    27543     4279
> > 1       0             0 plugin-containe
> > Jan  4 15:22:55 figo-desktop kernel: [32320]  1000 32320    16230     1445
> > 1       0             0 GoogleTalkPlugi
> > Jan  4 15:22:55 figo-desktop kernel: [  970]  1000   970   407197     2636
> > 1       0             0 insight3.exe
> > Jan  4 15:22:55 figo-desktop kernel: [ 1240]  1000  1240      601      116
> > 1       0             0 top
> > Jan  4 15:22:55 figo-desktop kernel: [ 2038]  1000  2038   407786     2842
> > 0       0             0 insight3.exe
> > Jan  4 15:22:55 figo-desktop kernel: [12415]     0 12415      543      232
> > 1     -17         -1000 udevd
> > Jan  4 15:22:55 figo-desktop kernel: [12416]     0 12416      580      195
> > 1     -17         -1000 udevd
> > Jan  4 15:22:55 figo-desktop kernel: [13904]     0 13904     1488      219
> > 1       0             0 sudo
> > Jan  4 15:22:55 figo-desktop kernel: [13906]     0 13906     1386      131
> > 0       0             0 swapoff

We don't know what task was killed here, if any, because it's not showing 
the "Killed process ... total-vm:...kB, anon-rss:...kB, file--rss:...kB" 
line that indicates anything was killed.  In fact, your entire log doesn't 
show that.  minicom simply invoking the oom killer (and Xorg later) 
doesn't indicate a problem.

Please post a complete log that shows the tasklist dump and which task was 
selected from that state.
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