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xenwatch invoked oom-killer



Hello,

I have sometimes a strange crash with xen. I can't reproduce it but it is very 
annoying because I have to reboot the system to recover from this state.

It seems that oom-killer is invoked while the memory resources on the dom0 are 
nevertheless available.

oom-killer is invoked 16 times in 5 minutes and kills essentials processes for 
xen.

I've seen few other reports but without solution :
- 
https://serverfault.com/questions/809944/oom-killer-on-xenserver-2832mb-memory-free-killing-xapi
- https://github.com/QubesOS/qubes-issues/issues/3079

Do you know what happens and how I can avoid it ?

Regards,


Guillaume
---

# lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description:    Debian GNU/Linux 10 (buster)
Release:        10
Codename:       buster

# uname -a
Linux dom0 4.19.0-9-amd64 #1 SMP Debian 4.19.118-2 (2020-04-29) x86_64 GNU/Linux

# xl info
host                   : dom0
release                : 4.19.0-9-amd64
version                : #1 SMP Debian 4.19.118-2 (2020-04-29)
machine                : x86_64
nr_cpus                : 8
max_cpu_id             : 55
nr_nodes               : 1
cores_per_socket       : 4
threads_per_core       : 2
cpu_mhz                : 2194.858
hw_caps                : 
bfebfbff:77fef3ff:2c100800:00000121:0000000f:d19ffffb:00000008:00000100
virt_caps              : hvm hvm_directio
total_memory           : 32419
free_memory            : 634
sharing_freed_memory   : 0
sharing_used_memory    : 0
outstanding_claims     : 0
free_cpus              : 0
xen_major              : 4
xen_minor              : 11
xen_extra              : .4-pre
xen_version            : 4.11.4-pre
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 
hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          :
xen_commandline        : placeholder dom0_mem=1536M,max:1536M smt=true 
no-real-mode edd=off
cc_compiler            : gcc (Debian 8.3.0-6) 8.3.0
cc_compile_by          : pkg-xen-devel
cc_compile_domain      : lists.alioth.debian.org
cc_compile_date        : Wed Jan  8 20:16:51 UTC 2020
build_id               : b6822aa1d8f867753b92985e5cb0e806e520a08c
xend_config_format     : 4

00:00:01    kbmemfree   kbavail kbmemused  %memused kbbuffers  kbcached  
kbcommit   %commit  kbactive   kbinact   kbdirty
05:05:01        22608    284004    214668     32,46      8316    102200    
251068      2,96     58432     81660        80
05:15:01        22896    284808    213044     32,22      8684    103448    
248984      2,94     58360     82900        76
05:25:01        66968    287588    211040     31,92      9036     61232    
251820      2,97     60564     39072        20
05:35:01        63436    284952    213200     32,24      9480     61368    
252000      2,97     62132     39248        72
05:45:02        64312    286516    210724     31,87      9980     63644    
248060      2,93     60224     41472        52
05:55:02        56204    278760    218264     33,01     10488     63804    
261020      3,08     66928     41508        52
06:05:02        70992    287216    209656     31,62     11676     59344    
176992      2,09     54348     48044        52
06:15:02        79360    290312    221748     32,90      8444     53268    
166460      1,96     56152     45792        44
06:25:01        60116    272472    237640     35,23      9900     54124    
204768      2,41     64024     51272        92
06:35:01        11744    250120    258228     38,27     30896     58276    
235632      2,78     91088     60764         8
06:45:01        39680    290064    219828     32,58      2336     95716    
270092      3,18     60452     59588        32
06:55:01        19604    266392    241372     35,78      2596     91760    
308968      3,64     67288     68540        16
07:05:01        10768    242652    262376     38,89      2904     76696    
339884      4,00     68312     64324        20
07:15:01        10740    224596    277892     41,19      3076     58724    
373104      4,40     65988     58920         4
07:25:01        25764    211088    287596     42,63      1432     33444    
419220      4,94     35988     65928        24
07:35:02        13664    195904    300816     44,59      2088     29332    
453316      5,34     51032     57736        44
07:45:01        11092    191848    302584     44,85      1124     28296    
490896      5,78     59972     49644        20
07:55:01        12436    188440    304220     45,09      1312     22716    
524504      6,18     57504     40980         0
08:05:01        14040    187564    302704     44,87       912     20112    
562932      6,63     52432     38116        52

00:00:01        CPU     %user     %nice   %system   %iowait    %steal     %idle
05:05:01        all      0,10      0,00      0,52      0,01      0,95     98,42
05:15:01        all      0,10      0,00      0,53      0,00      1,15     98,22
05:25:01        all      0,14      0,00      0,65      0,02      1,58     97,60
05:35:01        all      0,10      0,00      0,54      0,01      1,00     98,35
05:45:02        all      0,11      0,00      0,56      0,01      1,21     98,11
05:55:02        all      0,11      0,00      0,55      0,01      1,09     98,24
06:05:02        all      0,14      0,00      0,62      0,01      1,09     98,14
06:15:02        all      0,09      0,00      0,36      0,01      0,87     98,67
06:25:01        all      0,05      0,00      0,12      0,01      0,71     99,12
06:35:01        all      0,02      0,01      0,12      0,01      0,60     99,24
06:45:01        all      0,12      0,03      0,21      0,01      0,21     99,42
06:55:01        all      0,01      0,00      0,08      0,01      0,19     99,72
07:05:01        all      0,01      0,00      0,07      0,00      0,21     99,70
07:15:01        all      0,01      0,00      0,08      0,00      0,19     99,72
07:25:01        all      0,04      0,00      0,13      0,01      0,28     99,55
07:35:02        all      0,01      0,00      0,08      0,00      0,21     99,69
07:45:01        all      0,01      0,00      0,09      0,00      0,17     99,73
07:55:01        all      0,01      0,00      0,08      0,00      0,18     99,73
08:05:01        all      0,01      0,00      0,09      0,01      0,17     99,73

00:00:01      runq-sz  plist-sz   ldavg-1   ldavg-5  ldavg-15   blocked
05:05:01            1       469      0,55      0,32      0,18         0
05:15:01           10       466      0,29      0,41      0,30         0
05:25:01            3       470      0,21      0,28      0,31         0
05:35:01            3       470      0,53      0,35      0,30         0
05:45:02            2       469      0,24      0,27      0,27         0
05:55:02            4       476      0,27      0,32      0,28         0
06:05:02            5       464      0,08      0,16      0,20         0
06:15:02            3       470      1,17      0,93      0,58         0
06:25:01            6       527      1,06      1,05      0,84         0
06:35:01            2       582      1,12      1,19      1,04         0
06:45:01            1       640      1,11      1,17      1,09         0
06:55:01            1       707      1,11      1,16      1,10         0
07:05:01            2       764      1,08      1,12      1,09         0
07:15:01            5       818      1,11      1,11      1,09         0
07:25:01            3       885      1,09      1,09      1,08         0
07:35:02            9       943      1,10      1,07      1,07         0
07:45:01            1      1002      1,00      1,03      1,06         0
07:55:01            1      1061      1,17      1,06      1,03         0
08:05:01            1      1124      1,04      1,07      1,07         0

May 20 06:03:09 c00-xen kernel: [21662622.310610] xenwatch invoked oom-killer: 
gfp_mask=0x60c0c0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null), order=3, 
oom_score_adj=0
May 20 06:03:09 c00-xen kernel: [21662622.356873] xenwatch invoked oom-killer: 
gfp_mask=0x60c0c0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null), order=3, 
oom_score_adj=0
May 20 06:03:09 c00-xen kernel: [21662622.369082] xenwatch invoked oom-killer: 
gfp_mask=0x60c0c0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null), order=3, 
oom_score_adj=0
May 20 06:03:09 c00-xen kernel: [21662622.380073] xenwatch invoked oom-killer: 
gfp_mask=0x60c0c0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null), order=3, 
oom_score_adj=0
May 20 06:03:09 c00-xen kernel: [21662622.410332] xenwatch invoked oom-killer: 
gfp_mask=0x60c0c0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null), order=3, 
oom_score_adj=0
May 20 06:03:09 c00-xen kernel: [21662622.422804] xenwatch invoked oom-killer: 
gfp_mask=0x60c0c0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null), order=3, 
oom_score_adj=0
May 20 06:03:09 c00-xen kernel: [21662622.433052] xenwatch invoked oom-killer: 
gfp_mask=0x60c0c0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null), order=3, 
oom_score_adj=0
May 20 06:03:09 c00-xen kernel: [21662622.446260] xenwatch invoked oom-killer: 
gfp_mask=0x60c0c0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null), order=3, 
oom_score_adj=0
May 20 06:06:43 c00-xen kernel: [21662836.250666] xenwatch invoked oom-killer: 
gfp_mask=0x60c0c0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null), order=3, 
oom_score_adj=0
May 20 06:06:43 c00-xen kernel: [21662836.317120] xenwatch invoked oom-killer: 
gfp_mask=0x60c0c0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null), order=3, 
oom_score_adj=0
May 20 06:07:45 c00-xen kernel: [21662898.516879] xenwatch invoked oom-killer: 
gfp_mask=0x60c0c0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null), order=3, 
oom_score_adj=0
May 20 06:07:45 c00-xen kernel: [21662898.561508] xenwatch invoked oom-killer: 
gfp_mask=0x60c0c0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null), order=3, 
oom_score_adj=0
May 20 06:07:45 c00-xen kernel: [21662898.589353] xenwatch invoked oom-killer: 
gfp_mask=0x60c0c0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null), order=3, 
oom_score_adj=0
May 20 06:07:46 c00-xen kernel: [21662898.610949] xenwatch invoked oom-killer: 
gfp_mask=0x60c0c0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null), order=3, 
oom_score_adj=0
May 20 06:07:46 c00-xen kernel: [21662898.624386] xenwatch invoked oom-killer: 
gfp_mask=0x60c0c0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null), order=3, 
oom_score_adj=0
May 20 06:07:46 c00-xen kernel: [21662898.648854] xenwatch invoked oom-killer: 
gfp_mask=0x60c0c0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null), order=3, 
oom_score_adj=0

May 20 06:03:09 dom0 kernel: [21662622.310610] xenwatch invoked oom-killer: 
gfp_mask=0x60c0c0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null), order=3, 
oom_score_adj=0
May 20 06:03:09 dom0 kernel: [21662622.310611] xenwatch cpuset=/ mems_allowed=0
May 20 06:03:09 dom0 kernel: [21662622.310616] CPU: 3 PID: 54 Comm: xenwatch 
Not tainted 4.19.0-6-amd64 0000001 Debian 4.19.67-2
May 20 06:03:09 dom0 kernel: [21662622.310617] Hardware name: Supermicro Super 
Server/X11SDV-4C-TLN2F, BIOS 1.1a 05/08/2019
May 20 06:03:09 dom0 kernel: [21662622.310617] Call Trace:
May 20 06:03:09 dom0 kernel: [21662622.310625]  dump_stack+0x5c/0x80
May 20 06:03:09 dom0 kernel: [21662622.310630]  dump_header+0x6b/0x283
May 20 06:03:09 dom0 kernel: [21662622.310633]  
oom_kill_process.cold.30+0xb/0x1cf
May 20 06:03:09 dom0 kernel: [21662622.310635]  ? oom_badness+0xe9/0x140
May 20 06:03:09 dom0 kernel: [21662622.310636]  out_of_memory+0x1a5/0x430
May 20 06:03:09 dom0 kernel: [21662622.310638]  
__alloc_pages_slowpath+0xbd8/0xcb0
May 20 06:03:09 dom0 kernel: [21662622.310640]  
__alloc_pages_nodemask+0x28b/0x2b0
May 20 06:03:09 dom0 kernel: [21662622.310643]  kmalloc_order+0x14/0x30
May 20 06:03:09 dom0 kernel: [21662622.310644]  kmalloc_order_trace+0x1d/0xa0
May 20 06:03:09 dom0 kernel: [21662622.310650]  read_per_ring_refs+0x1c4/0x85e 
[xen_blkback]
May 20 06:03:09 dom0 kernel: [21662622.310652]  ? 
xen_blkbk_unmap_and_respond_callback+0x160/0x160 [xen_blkback]
May 20 06:03:09 dom0 kernel: [21662622.310655]  ? printk+0x58/0x6f
May 20 06:03:09 dom0 kernel: [21662622.310657]  ? 
xen_blkbk_unmap_and_respond_callback+0x160/0x160 [xen_blkback]
May 20 06:03:09 dom0 kernel: [21662622.310659]  
frontend_changed.cold.18+0x80/0x11e [xen_blkback]
May 20 06:03:09 dom0 kernel: [21662622.310662]  ? test_reply.isra.1+0x40/0x40
May 20 06:03:09 dom0 kernel: [21662622.310663]  xenwatch_thread+0xcf/0x170
May 20 06:03:09 dom0 kernel: [21662622.310666]  ? finish_wait+0x80/0x80
May 20 06:03:09 dom0 kernel: [21662622.310669]  kthread+0x112/0x130
May 20 06:03:09 dom0 kernel: [21662622.310671]  ? kthread_bind+0x30/0x30
May 20 06:03:09 dom0 kernel: [21662622.310674]  ret_from_fork+0x35/0x40
May 20 06:03:09 dom0 kernel: [21662622.310676] Mem-Info:
May 20 06:03:09 dom0 kernel: [21662622.310680] active_anon:7819 
inactive_anon:8715 isolated_anon:0
May 20 06:03:09 dom0 kernel: [21662622.310680]  active_file:10879 
inactive_file:7328 isolated_file:0
May 20 06:03:09 dom0 kernel: [21662622.310680]  unevictable:0 dirty:18 
writeback:0 unstable:0
May 20 06:03:09 dom0 kernel: [21662622.310680]  slab_reclaimable:42838 
slab_unreclaimable:35585
May 20 06:03:09 dom0 kernel: [21662622.310680]  mapped:6081 shmem:1143 
pagetables:738 bounce:0
May 20 06:03:09 dom0 kernel: [21662622.310680]  free:10758 free_pcp:12 
free_cma:0
May 20 06:03:09 dom0 kernel: [21662622.310682] Node 0 active_anon:31276kB 
inactive_anon:34860kB active_file:43516kB inactive_file:29312kB unevictable:0kB 
isolated(anon):0kB isolated(file):0kB mapped:24324kB dirty:72kB writeback:0kB 
shmem:4572kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB 
writeback_tmp:0kB unstable:0kB all_unreclaimable? no
May 20 06:03:09 dom0 kernel: [21662622.310683] Node 0 DMA free:5216kB min:64kB 
low:80kB high:96kB active_anon:4kB inactive_anon:0kB active_file:4kB 
inactive_file:0kB unevictable:0kB writepending:0kB present:15996kB 
managed:15448kB mlocked:0kB kernel_stack:16kB pagetables:0kB bounce:0kB 
free_pcp:0kB local_pcp:0kB free_cma:0kB
May 20 06:03:09 dom0 kernel: [21662622.310686] lowmem_reserve[]: 0 846 846 846 
846
May 20 06:03:09 dom0 kernel: [21662622.310688] Node 0 DMA32 free:37816kB 
min:3688kB low:4608kB high:5528kB active_anon:31276kB inactive_anon:34924kB 
active_file:43560kB inactive_file:29428kB unevictable:0kB writepending:72kB 
present:1008000kB managed:653980kB mlocked:0kB kernel_stack:7632kB 
pagetables:2952kB bounce:0kB free_pcp:48kB local_pcp:48kB free_cma:0kB
May 20 06:03:09 dom0 kernel: [21662622.310690] lowmem_reserve[]: 0 0 0 0 0
May 20 06:03:09 dom0 kernel: [21662622.310693] Node 0 DMA: 72*4kB (UME) 50*8kB 
(UMEH) 63*16kB (UMEH) 56*32kB (UMEH) 21*64kB (UMEH) 3*128kB (UM) 0*256kB 
0*512kB 0*1024kB 0*2048kB 0*4096kB = 5216kB
May 20 06:03:09 dom0 kernel: [21662622.310700] Node 0 DMA32: 5442*4kB (UMEH) 
1534*8kB (UMEH) 209*16kB (UEH) 12*32kB (H) 2*64kB (H) 0*128kB 0*256kB 0*512kB 
0*1024kB 0*2048kB 0*4096kB = 37896kB
May 20 06:03:09 dom0 kernel: [21662622.310706] 21469 total pagecache pages
May 20 06:03:09 dom0 kernel: [21662622.310708] 2069 pages in swap cache
May 20 06:03:09 dom0 kernel: [21662622.310709] Swap cache stats: add 7057724, 
delete 7055780, find 47987948/48848494
May 20 06:03:09 dom0 kernel: [21662622.310710] Free swap  = 7701752kB
May 20 06:03:09 dom0 kernel: [21662622.310710] Total swap = 7813112kB
May 20 06:03:09 dom0 kernel: [21662622.310710] 255999 pages RAM
May 20 06:03:09 dom0 kernel: [21662622.310711] 0 pages HighMem/MovableOnly
May 20 06:03:09 dom0 kernel: [21662622.310711] 88642 pages reserved
May 20 06:03:09 dom0 kernel: [21662622.310712] 0 pages hwpoisoned
May 20 06:03:09 dom0 kernel: [21662622.310712] Unreclaimable slab info:
May 20 06:03:09 dom0 kernel: [21662622.310713] Name                      Used   
       Total
May 20 06:03:09 dom0 kernel: [21662622.312767] scsi_sense_cache          52KB   
      52KB
May 20 06:03:09 dom0 kernel: [21662622.312769] PINGv6                    97KB   
      97KB
May 20 06:03:09 dom0 kernel: [21662622.312770] RAWv6                     97KB   
      97KB
May 20 06:03:09 dom0 kernel: [21662622.312770] UDPv6                    222KB   
     222KB
May 20 06:03:09 dom0 kernel: [21662622.312772] TCPv6                    220KB   
     220KB
May 20 06:03:09 dom0 kernel: [21662622.312772] sgpool-128                32KB   
      32KB
May 20 06:03:09 dom0 kernel: [21662622.312774] mqueue_inode_cache         31KB  
       31KB
May 20 06:03:09 dom0 kernel: [21662622.312775] posix_timers_cache         63KB  
       63KB
May 20 06:03:09 dom0 kernel: [21662622.312775] UNIX                     256KB   
     256KB
May 20 06:03:09 dom0 kernel: [21662622.312776] ip4-frags                  7KB   
       7KB
May 20 06:03:09 dom0 kernel: [21662622.312777] secpath_cache             48KB   
      48KB
May 20 06:03:09 dom0 kernel: [21662622.312778] xfrm_dst_cache           367KB   
     367KB
May 20 06:03:09 dom0 kernel: [21662622.312779] PING                      99KB   
      99KB
May 20 06:03:09 dom0 kernel: [21662622.312780] RAW                      127KB   
     127KB
May 20 06:03:09 dom0 kernel: [21662622.312781] tw_sock_TCP               71KB   
      71KB
May 20 06:03:09 dom0 kernel: [21662622.312782] request_sock_TCP          61KB   
      61KB
May 20 06:03:09 dom0 kernel: [21662622.312783] TCP                      510KB   
     510KB
May 20 06:03:09 dom0 kernel: [21662622.312784] eventpoll_pwq             31KB   
      31KB
May 20 06:03:09 dom0 kernel: [21662622.312784] inotify_inode_mark         35KB  
       35KB
May 20 06:03:09 dom0 kernel: [21662622.312785] request_queue            283KB   
     283KB
May 20 06:03:09 dom0 kernel: [21662622.312786] blkdev_ioc                47KB   
      47KB
May 20 06:03:09 dom0 kernel: [21662622.312788] biovec-max              1408KB   
    1544KB
May 20 06:03:09 dom0 kernel: [21662622.312789] biovec-128                32KB   
      32KB
May 20 06:03:09 dom0 kernel: [21662622.312790] biovec-64                288KB   
     308KB
May 20 06:03:09 dom0 kernel: [21662622.312791] dmaengine-unmap-256         30KB 
        30KB
May 20 06:03:09 dom0 kernel: [21662622.312792] dmaengine-unmap-128         31KB 
        31KB
May 20 06:03:09 dom0 kernel: [21662622.312792] dmaengine-unmap-16         35KB  
       35KB
May 20 06:03:09 dom0 kernel: [21662622.312795] dmaengine-unmap-2        403KB   
     480KB
May 20 06:03:09 dom0 kernel: [21662622.312797] skbuff_fclone_cache        256KB 
       256KB
May 20 06:03:09 dom0 kernel: [21662622.312797] skbuff_head_cache        424KB   
     424KB
May 20 06:03:09 dom0 kernel: [21662622.312798] file_lock_cache           58KB   
      58KB
May 20 06:03:09 dom0 kernel: [21662622.312799] shmem_inode_cache        585KB   
     585KB
May 20 06:03:09 dom0 kernel: [21662622.312800] taskstats                 61KB   
      61KB
May 20 06:03:09 dom0 kernel: [21662622.312800] proc_dir_entry           878KB   
     878KB
May 20 06:03:09 dom0 kernel: [21662622.312801] pde_opener                31KB   
      31KB
May 20 06:03:09 dom0 kernel: [21662622.312802] sigqueue                  39KB   
      39KB
May 20 06:03:09 dom0 kernel: [21662622.312815] kernfs_node_cache       7966KB   
    8060KB
May 20 06:03:09 dom0 kernel: [21662622.312820] mnt_cache                514KB   
     622KB
May 20 06:03:09 dom0 kernel: [21662622.312821] filp                     474KB   
     504KB
May 20 06:03:09 dom0 kernel: [21662622.312822] names_cache              256KB   
     256KB
May 20 06:03:09 dom0 kernel: [21662622.312823] vm_area_struct           903KB   
     903KB
May 20 06:03:09 dom0 kernel: [21662622.312823] mm_struct                255KB   
     255KB
May 20 06:03:09 dom0 kernel: [21662622.312824] files_cache              126KB   
     126KB
May 20 06:03:09 dom0 kernel: [21662622.312825] signal_cache             892KB   
     978KB
May 20 06:03:09 dom0 kernel: [21662622.312826] sighand_cache           1109KB   
    1144KB
May 20 06:03:09 dom0 kernel: [21662622.312829] task_struct             2293KB   
    2409KB
May 20 06:03:09 dom0 kernel: [21662622.312830] cred_jar                 224KB   
     224KB
May 20 06:03:09 dom0 kernel: [21662622.312830] anon_vma_chain           388KB   
     388KB
May 20 06:03:09 dom0 kernel: [21662622.312831] anon_vma                 549KB   
     549KB
May 20 06:03:09 dom0 kernel: [21662622.312832] pid                      152KB   
     152KB
May 20 06:03:09 dom0 kernel: [21662622.312832] Acpi-Operand            1212KB   
    1212KB
May 20 06:03:09 dom0 kernel: [21662622.312833] Acpi-Parse                31KB   
      31KB
May 20 06:03:09 dom0 kernel: [21662622.312833] Acpi-State                35KB   
      35KB
May 20 06:03:09 dom0 kernel: [21662622.312834] Acpi-Namespace           374KB   
     374KB
May 20 06:03:09 dom0 kernel: [21662622.312834] numa_policy               31KB   
      31KB
May 20 06:03:09 dom0 kernel: [21662622.312835] trace_event_file         130KB   
     130KB
May 20 06:03:09 dom0 kernel: [21662622.312836] ftrace_event_field        171KB  
      171KB
May 20 06:03:09 dom0 kernel: [21662622.312838] pool_workqueue           140KB   
     216KB
May 20 06:03:09 dom0 kernel: [21662622.312839] task_group               125KB   
     125KB
May 20 06:03:09 dom0 kernel: [21662622.312841] kmalloc-8192            7688KB   
    7776KB
May 20 06:03:09 dom0 kernel: [21662622.312845] kmalloc-4096            6480KB   
    6592KB
May 20 06:03:09 dom0 kernel: [21662622.312847] kmalloc-2048            5554KB   
    5600KB
May 20 06:03:09 dom0 kernel: [21662622.312851] kmalloc-1024            4396KB   
    4464KB
May 20 06:03:09 dom0 kernel: [21662622.312855] kmalloc-512             2113KB   
    2176KB
May 20 06:03:09 dom0 kernel: [21662622.312855] kmalloc-256              728KB   
     728KB
May 20 06:03:09 dom0 kernel: [21662622.312856] kmalloc-192             6044KB   
    6044KB
May 20 06:03:09 dom0 kernel: [21662622.312860] kmalloc-128             1319KB   
    1332KB
May 20 06:03:09 dom0 kernel: [21662622.312913] kmalloc-96              1003KB   
    2421KB
May 20 06:03:09 dom0 kernel: [21662622.312925] kmalloc-64              1839KB   
    1884KB
May 20 06:03:09 dom0 kernel: [21662622.312926] kmalloc-32             16088KB   
   16088KB
May 20 06:03:09 dom0 kernel: [21662622.312926] kmalloc-16               284KB   
     284KB
May 20 06:03:09 dom0 kernel: [21662622.312927] kmalloc-8                100KB   
     100KB
May 20 06:03:09 dom0 kernel: [21662622.312928] kmem_cache_node         1344KB   
    1344KB
May 20 06:03:09 dom0 kernel: [21662622.312928] kmem_cache              7983KB   
    7983KB
May 20 06:03:09 dom0 kernel: [21662622.312930] Tasks state (memory values in 
pages):
May 20 06:03:09 dom0 kernel: [21662622.312930] [  pid  ]   uid  tgid total_vm   
   rss pgtables_bytes swapents oom_score_adj name
May 20 06:03:09 dom0 kernel: [21662622.312945] [    449]     0   449     5312   
   200    86016      666             0 systemd-logind
[...]
May 20 06:03:09 dom0 kernel: [21662622.313081] Out of memory: Kill process 
32670 (xl) score 3 or sacrifice child
May 20 06:03:09 dom0 kernel: [21662622.313978] Killed process 32670 (xl) 
total-vm:97036kB, anon-rss:25224kB, file-rss:2536kB, shmem-rss:0kB
May 20 06:03:09 dom0 kernel: [21662622.331673] oom_reaper: reaped process 32670 
(xl), now anon-rss:0kB, file-rss:24kB, shmem-rss:0kB



 


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