Re: [LTP] clock_settime03 test fails on kernel-2.6.32

[Jan Stancek <jstancek@redhat.com>]

----- Original Message -----
> From: "Ramesh" <rameshyr@linux.vnet.ibm.com>
> To: ltp-list@lists.sourceforge.net
> Sent: Monday, 30 September, 2013 8:31:52 AM
> Subject: [LTP] clock_settime03 test fails on kernel-2.6.32
> 
> Hi All,
> 
> I am facing some issues with clock_settim03 test of timers group.
> clock_settime03 evaluates
> the error condition of clock_settime systemcall. On my machine, TEST8 &
> TEST9 are failing as
> the expeted error is not equal to the actual error.
> 
> After analysis, I found that the TEST8 & TEST9 are trying to
> set CLOCK_PROCESS_CPUTIME_ID and CLOCK_THREAD_CPUTIME_ID respectively.
> But from the man pages, it says that
> "According to POSIX.1-2001, the CLOCK_PROCESS_CPUTIME_ID and
> CLOCK_THREAD_CPUTIME_ID
>   clocks should be settable using  clock_settime(). How-ever, the clocks
> currently are not settable".
> 
> Also, in the below code snippet of
> ltp/testcases/kernel/timers/clock_settime/clock_settime03.c
> the if statement looks nothing for my kernel-2.6.32. So, the value of
> testcases[7] and testcases[8]
> will get assigned to EFAULT but actually both of them should get set to
> EINVAL as the support is not
> available on kernel-2.6.32.
> 
> -----------
> 
>          /* PROCESS_CPUTIME_ID & THREAD_CPUTIME_ID are not supported on
>           * kernel versions lower than 2.6.12 and changed back in 2.6.38
>           */
>          if ((tst_kvercmp(2, 6, 12)) < 0 || (tst_kvercmp(2, 6, 38)) >= 0) {
>                  testcases[7] = EINVAL;
>                  testcases[8] = EINVAL;
>          } else {
>                  testcases[7] = EFAULT;
>                  testcases[8] = EFAULT;
>          }
> 
> ------------
> 
> I would like to know from which version onwards the
> CLOCK_PROCESS_CPUTIME_ID and CLOCK_THREAD_CPUTIME_ID
> clocks can be set using clock_settime() so that I can generate a valid
> patch for this testcase.

Hi,

what LTP version are you running?
Can you check if it has following commit:
https://github.com/linux-test-project/ltp/commit/a2d159595a761da1626b3f489dfe9cf2c351b774

Regards,
Jan

> 
> 
> 
> Regards,
> Ramesh
> 
> 
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