# [OmniOS-discuss] qemu-system-x86_64 can not locked enough memory

Fucai.Liang fcliang at baolict.com
Tue Dec 1 17:24:34 UTC 2015

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    root at BLCC01:/root# vmstat 15
     kthr      memory            page            disk          faults      cpu
     r b w   swap  free  re  mf pi po fr de sr ro s0 s1 s2   in   sy   cs us sy id
     0 0 0 8327684 16628108 21 334 0 0 0  0 39  1  1 28 28 3971 22009 9713 1  6 93
     0 0 0 7135732 15842152 1 3  0  0  0  0  0  0  0 19 19 3895 22852 9855 1  5 93
     1 0 0 7135692 15842176 0 0  0  0  0  0  0  0  0 26 26 4053 22766 9903 1  5 94
     0 0 0 7135656 15842140 0 0  0  0  0  0  0  0  0 20 20 4001 22727 9858 1  5 94
                                                                                                                                       ——————————————>launch third VM .
     1 0 0 1966932 14275356 13 98 0 0  0  0  0  0  0 20 20 4103 22893 10480 1 8 91
     0 0 0 1037608 13954964 2 30 0  0  0  0  0  0  0 19 19 4195 23059 10683 1 6 93
     0 0 0 1037280 13954636 0 0  0  0  0  0  0  0  0 24 24 4312 22948 10636 1 5 94
     0 0 0 1037112 13954468 0 0  0  0  0  0  0  0  0 21 21 4362 22927 10678 1 5 93
     0 0 0 1037288 13954644 0 0  0  0  0  0  0  0  0 19 19 4256 22897 10551 1 5 94
     0 0 0 1037412 13954768 0 0  0  0  0  0  0  0  0 19 19 4384 23172 10638 1 6 93

    thank Dan

    -----------------------------------
    fcliang

    > On Dec 2, 2015, at 1:11 AM, Dan McDonald <danmcd at omniti.com> wrote:
    >
    >
    >> On Dec 1, 2015, at 12:03 PM, Fucai.Liang <fcliang at baolict.com> wrote:
    >>
    >> then I start the third vm (4G memory), it got the following error :
    >>
    >>
    >> qemu-system-x86_64 -enable-kvm -vnc 0.0.0.0:2 -cpu host -smp 2 -m 4096 -no-hpet
    >>
    >> qemu_mlock: have only locked 1940582400 of 4294967296 bytes; still trying...
    >> qemu_mlock: have only locked 1940582400 of 4294967296 bytes; still trying...
    >> qemu_mlock: have only locked 1940582400 of 4294967296 bytes; still trying...
    >> qemu_mlock: have only locked 1940582400 of 4294967296 bytes; still trying...
    >> qemu_mlock: have only locked 1940582400 of 4294967296 bytes; still trying...
    >> qemu_mlock: have only locked 1940582400 of 4294967296 bytes; still trying…
    >>
    >>
    >> I got 15G free memory in the system, why qemu-system-x86_64 can not locked enough memory ？
    >
    > What does "vmstat 1 5" say prior to your launch of the third VM?
    >
    > Dan
    >

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