Re: [LTP] about "hugetlbshmget03"

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

On Mon, Feb 15, 2010 at 11:37:03AM +0800, shenghui wrote:
> 2010/2/8 Rishikesh <risrajak@linux.vnet.ibm.com>
> 
> > 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
> >
> >
> >
> Hi Rishi,
> 
>       I found hugetlbshmget01 has the same problem. Seems we need do
> further investigation on these two programs. :)

Hi Shenghui,
Sure i will have a look into it soon. 
Thanks
Rishi
> 
> 
> -- 
> 
> 
> Thanks and Best Regards,
> shenghui

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