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Memory Allocation

Discussion in 'Workarounds and Optimization' started by JustSomeGuy, Jun 2, 2015.

  1. JustSomeGuy

    JustSomeGuy Active Member

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    I was wondering if anyone can give me some advise

    I have two servers with SoftLayer and they have installed Centos and CPanel for me.
    Any advise on memory allocation, especially vmalloc as server #1 I received an error at time of bootup: allocation failed: out of vmalloc space - use vmalloc=<size> to increase size

    Code:
    Server #1
cat /proc/meminfo
MemTotal:  12462580 kB
MemFree:  4897752 kB
Buffers:  473012 kB
Cached:  6183852 kB
SwapCached:  0 kB
Active:  2808952 kB
Inactive:  4363496 kB
HighTotal:  11655652 kB
HighFree:  4889008 kB
LowTotal:  806928 kB
LowFree:  8744 kB
SwapTotal:  6289408 kB
SwapFree:  6289408 kB
Dirty:  3836 kB
Writeback:  0 kB
AnonPages:  514992 kB
Mapped:  31428 kB
Slab:  316084 kB
PageTables:  6956 kB
NFS_Unstable:  0 kB
Bounce:  0 kB
CommitLimit:  12520696 kB
Committed_AS:  1343736 kB
VmallocTotal:  116728 kB
VmallocUsed:  57268 kB
VmallocChunk:  21224 kB
HugePages_Total:  0
HugePages_Free:  0
HugePages_Rsvd:  0
Hugepagesize:  2048 kB

server #2
cat /proc/meminfo
MemTotal:  12186880 kB
MemFree:  5831288 kB
Buffers:  578536 kB
Cached:  3803216 kB
SwapCached:  0 kB
Active:  2895684 kB
Inactive:  2991036 kB
Active(anon):  775544 kB
Inactive(anon):  729896 kB
Active(file):  2120140 kB
Inactive(file):  2261140 kB
Unevictable:  0 kB
Mlocked:  0 kB
SwapTotal:  2097144 kB
SwapFree:  2097144 kB
Dirty:  776 kB
Writeback:  0 kB
AnonPages:  1505208 kB
Mapped:  40516 kB
Shmem:  304 kB
Slab:  220496 kB
SReclaimable:  174200 kB
SUnreclaim:  46296 kB
KernelStack:  3536 kB
PageTables:  22004 kB
NFS_Unstable:  0 kB
Bounce:  0 kB
WritebackTmp:  0 kB
CommitLimit:  8190584 kB
Committed_AS:  1939464 kB
VmallocTotal:  34359738367 kB
VmallocUsed:  393032 kB
VmallocChunk:  34352323740 kB
HardwareCorrupted:  0 kB
AnonHugePages:  1091584 kB
HugePages_Total:  0
HugePages_Free:  0
HugePages_Rsvd:  0
HugePages_Surp:  0
Hugepagesize:  2048 kB
DirectMap4k:  5632 kB
DirectMap2M:  2082816 kB
DirectMap1G:  10485760 kB
     
    #1 JustSomeGuy, Jun 2, 2015
    Last edited by a moderator: Jun 2, 2015
  2. LostNerd

    LostNerd Well-Known Member

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    #2 LostNerd, Jun 2, 2015
  3. JustSomeGuy

    JustSomeGuy Active Member

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    It is not a virtual machine, it is 2 seperate dedicated servers running Centos.
     
    #3 JustSomeGuy, Jun 2, 2015
  4. LostNerd

    LostNerd Well-Known Member

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    Have you attempted to install any sort of virtualization on them at all? Also, can your host confirm that they are not "virtual dedicated's"?
     
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    #4 LostNerd, Jun 2, 2015
  5. JustSomeGuy

    JustSomeGuy Active Member

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    They are full dedicated servers which I lease from SoftLayer. They have confirmed they are NOT Virtual Dedicated servers
     
    #5 JustSomeGuy, Jun 2, 2015
  6. LostNerd

    LostNerd Well-Known Member

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    Fair enough. Have you followed the instructions yourself in the link I had provided?
     
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    #6 LostNerd, Jun 2, 2015
  7. JustSomeGuy

    JustSomeGuy Active Member

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    Yes I did BUT:
    1: LILO: I was not able to locate a file called: /etc/lilo.conf (did a full search for that file)
    2: GRUB2: no file /etc/default/grub
    3: GRUB: Found the file /boot/grub/menu.lst (see below) but there is no reference to vmalloc in it

    Code:
    # grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/sda5
#          initrd /initrd-version.img
#boot=/dev/sda
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title CentOS (2.6.18-404.el5PAE)
        root (hd0,0)
        kernel /vmlinuz-2.6.18-404.el5PAE ro root=LABEL=/
        initrd /initrd-2.6.18-404.el5PAE.img
title CentOS (2.6.18-398.el5PAE)
        root (hd0,0)
        kernel /vmlinuz-2.6.18-398.el5PAE ro root=LABEL=/
        initrd /initrd-2.6.18-398.el5PAE.img
     
    #7 JustSomeGuy, Jun 2, 2015
  8. LostNerd

    LostNerd Well-Known Member

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    The comments at https://bugzilla.redhat.com/show_bug.cgi?id=149092 seem to reference this.

    I found this quote there...

    This is incase of a kernel panic if you add the line in the instructions to grub.conf.
     
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    #8 LostNerd, Jun 2, 2015
  9. JustSomeGuy

    JustSomeGuy Active Member

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    But isn't that for Fedora and not Centos?
     
    #9 JustSomeGuy, Jun 2, 2015
  10. LostNerd

    LostNerd Well-Known Member

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    It is. However, I personally tend to watch both of them as they are "relatively" similar in regards to grub.
     
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    #10 LostNerd, Jun 2, 2015
    Last edited: Jun 2, 2015
  11. JustSomeGuy

    JustSomeGuy Active Member

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    Frustrating as that quoted issue seemed to be with grub 0.95 and fixed in 0.96 AND I am running 0.97
     
    #11 JustSomeGuy, Jun 2, 2015
  12. LostNerd

    LostNerd Well-Known Member

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    My apologies. I was unaware as to which version you were on.
     
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    #12 LostNerd, Jun 2, 2015
  13. cPanelMichael

    cPanelMichael Technical Support Community Manager
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    #13 cPanelMichael, Jun 3, 2015
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