Re: [LTP] about "hugetlbshmget03"

[Rishikesh <risrajak@linux.vnet.ibm.com>]

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On 02/08/2010 12:32 PM, shenghui wrote:
>
>
> 2010/2/8 Rishikesh <risrajak@linux.vnet.ibm.com 
> <mailto:risrajak@linux.vnet.ibm.com>>
>
>     On 02/06/2010 09:04 PM, shenghui wrote:
>>     Hi all,
>>
>>            I want to know how to run hugetlbshmget03? Does it need
>>     some arguments?
>>     For I have run it several times, always got error "NOMEM" for
>>     cannot get hugetlb
>>     page. But "cat /proc/meminfo" shows that free hugetlb pages are
>>     enough for its
>>     request.
>>            Does anyone know how to handle this problem?
>     Hi Shenghui,
>
>     Have you run this testcase after setting up nr_hugepages ? You
>     need to set the pages accordingly and then you need to run the
>     testcase.
>
>     e.g:
>
>     echo 10 > /proc/sys/vm/nr_hugepages
>
>     Please post your result if you still finding issue.
>
>     Thanks
>     Rishi
>
>>
>>     -- 
>>
>>
>>     Thanks and Best Regards,
>>     shenghui
>>
>>
>>     ------------------------------------------------------------------------------
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>>        
>
>
> Hi Rishi,
>
>        Please refer to the following for my error info. And will you 
> please try it on your workstation and send me
> your result?
Hi Shengui,

Yes i am also facing this different issue on my TP. Let me investigate 
more on that. Meanwhile if you know the solution can you please post 
your thought on this problem ?

Thanks
Rishi


>        Thanks!
>
> ===============================================================================
>
> root@crossover-laptop:/home/crossover/repository/ltp-intermediate-20100119/testcases/kernel/mem/hugetlb/hugeshmget# 
> ls
> hugeshmget01    hugeshmget02    hugeshmget03    hugeshmget05    Makefile
> hugeshmget01.c  hugeshmget02.c  hugeshmget03.c  hugeshmget05.c
>
> root@crossover-laptop:/home/crossover/repository/ltp-intermediate-20100119/testcases/kernel/mem/hugetlb/hugeshmget# 
> echo 10 > /proc/sys/vm/nr_hugepages
>
> root@crossover-laptop:/home/crossover/repository/ltp-intermediate-20100119/testcases/kernel/mem/hugetlb/hugeshmget# 
> cat /proc/meminfo
> MemTotal:        4048440 kB
> MemFree:         1576656 kB
> Buffers:          122652 kB
> Cached:          1487772 kB
> SwapCached:            0 kB
> Active:          1225860 kB
> Inactive:        1043268 kB
> Active(anon):     684228 kB
> Inactive(anon):       16 kB
> Active(file):     541632 kB
> Inactive(file):  1043252 kB
> Unevictable:           0 kB
> Mlocked:               0 kB
> HighTotal:       3211696 kB
> HighFree:        1044060 kB
> LowTotal:         836744 kB
> LowFree:          532596 kB
> SwapTotal:       3903752 kB
> SwapFree:        3903752 kB
> Dirty:               204 kB
> Writeback:             0 kB
> AnonPages:        658692 kB
> Mapped:           239928 kB
> Slab:             109460 kB
> SReclaimable:      93676 kB
> SUnreclaim:        15784 kB
> PageTables:         8332 kB
> NFS_Unstable:          0 kB
> Bounce:                0 kB
> WritebackTmp:          0 kB
> CommitLimit:     5917732 kB
> Committed_AS:    1389392 kB
> VmallocTotal:     122880 kB
> VmallocUsed:       44644 kB
> VmallocChunk:      75956 kB
> HugePages_Total:      10
> HugePages_Free:       10
> HugePages_Rsvd:        0
> HugePages_Surp:        0
> Hugepagesize:       2048 kB
> DirectMap4k:        8184 kB
> DirectMap2M:      903168 kB
>
> root@crossover-laptop:/home/crossover/repository/ltp-intermediate-20100119/testcases/kernel/mem/hugetlb/hugeshmget# 
> ./hugeshmget03
> hugeshmget03    0  TINFO  :  errno = 12 : Cannot allocate memory
> hugeshmget03    1  TBROK  :  Didn't get ENOSPC in test setup
>
> root@crossover-laptop:/home/crossover/repository/ltp-intermediate-20100119/testcases/kernel/mem/hugetlb/hugeshmget# 
> echo 32 > /proc/sys/vm/nr_hugepages
>
> root@crossover-laptop:/home/crossover/repository/ltp-intermediate-20100119/testcases/kernel/mem/hugetlb/hugeshmget# 
> ./hugeshmget03
> hugeshmget03    0  TINFO  :  errno = 12 : Cannot allocate memory
> hugeshmget03    1  TBROK  :  Didn't get ENOSPC in test setup
>
>
> -- 
>
>
> Thanks and Best Regards,
> shenghui


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Stay online with enterprise data centers and the best network in the business
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Personal 24x7 support from experience hosting pros just a phone call away.
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