[LTP] Some fix advice about test case kernel/syscalls/ipc/msgctl/msgctl11.c

[Jin Li <Jin.Li@windriver.com>]

Hi all

I met the same issue mentioned in the post ltp-list mails as follows.

And I notice that the test will still fail with

"Not enough free pids" once the memory is lager than 4G.

Does any one has plan to fix it or give it a walk around ?

If not, I want to fix it with the update of maximum pid number

once the memory is over 4G.

Willing to get your advice.

Jin

On 2011/9/27 18:16, Caspar Zhang wrote:
 > On 09/26/2011 10:21 PM, Romu Hu wrote:
 >> Hi,
 >>
 >> msgctl11 in ltp-20110915 failed on 2.6.39 kernel:
 >>
 >> msgctl11    1  TBROK  :  Not enough free pids
 >>
 >> I found that before error out,
 >>
 >> MSGMNI is 32768
 >> MAXNKIDS is 10
 >> free_pids is 32611
 >> maxnkids = ((free_pids / 4) / MSGMNI);
 >> so maxnkids is zero, which is why msgctl11 failed.
 >>
 >> Is this problem of testcase or problem of the tested system?
 >>
 >> Thanks
 >>
 >
 > I think it's a configuration issue.
 >
 > Cyril, do you think is it better to change TBROK to TCONF here?
 >
 > -                       tst_resm(TBROK, "Not enough free pids");
 > +                       tst_resm(TCONF, "Not enough free pids");
 >
 > Thanks,
 > Caspar

I changed MSGMNI in /proc to below 3000 and test passed.

Thanks

-- 
Regards,
Romu


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