Hi Shi,

Thanks for the patch.
@Garret , Thanks for merging.

-Rishi

On Wed, Feb 24, 2010 at 07:22:09PM -0800, Garrett Cooper wrote:
> On Sun, Feb 21, 2010 at 11:55 PM, Shi Weihua <[email protected]> wrote:
> > at 2010-2-18 1:14, Garrett Cooper wrote:
> >> On Tue, Feb 16, 2010 at 11:46 PM, Rishikesh <[email protected]> 
> >> wrote:
> >>> On 02/10/2010 03:16 PM, Shi Weihua wrote:
> >>>> mainline commit da15cfdae03351c689736f8d142618592e3cebc3
> >>>>   (subject: time: Introduce CLOCK_REALTIME_COARSE)
> >>>> added two clocks (CLOCK_REALTIME_COARSE/CLOCK_MONOTONIC_COARSE) in
> >>>> 2.6.32-rc1, but it has not been responded in ltp. then, the following
> >>>> error message occured.
> >>>> -----
> >>>> clock_gettime03    3  TFAIL  :  failed to produce expected error 
> >>>> [expected errno = 22 (Invalid argument), TEST_RETURN = 0]: 
> >>>> TEST_ERRNO=???(0): Success
> >>>> clock_gettime03    4  TFAIL  :  failed to produce expected error 
> >>>> [expected errno = 22 (Invalid argument), TEST_RETURN = 0]: 
> >>>> TEST_ERRNO=???(0): Success
> >>>> timer_create04    1  TFAIL  :  didn't fail as expected [expected errno = 
> >>>> 22 (Invalid argument)]: TEST_ERRNO=???(95): Operation not supported
> >>>> timer_create04    2  TFAIL  :  didn't fail as expected [expected errno = 
> >>>> 22 (Invalid argument)]: TEST_ERRNO=???(95): Operation not supported
> >>>> -----
> >>>>
> >>>> Following patch fixed this bug. and, passed on 2.6.32-rc1, 2.6.33-rc6, 
> >>>> 2.6.23.1-42.fc8.
> >>>>
> >>>
> >>> Can anyone provide their review & Acked ?
> >>>
> >>> Thanks "Shi Weihua" for patch.
> >>
> >> 1. Please provide before and after (once the items were fixed) output.
> >
> > before:
> > ------
> > clock_gettime03    1  TPASS  :  got expected failure: 
> > TEST_ERRNO=EFAULT(14): Bad address
> > clock_gettime03    2  TPASS  :  got expected failure: 
> > TEST_ERRNO=EFAULT(14): Bad address
> > clock_gettime03    3  TFAIL  :  failed to produce expected error [expected 
> > errno = 22 (Invalid argument), TEST_RETURN = 0]: TEST_ERRNO=???(0): Success
> > clock_gettime03    4  TFAIL  :  failed to produce expected error [expected 
> > errno = 22 (Invalid argument), TEST_RETURN = 0]: TEST_ERRNO=???(0): Success
> > clock_gettime03    5  TPASS  :  got expected failure: 
> > TEST_ERRNO=EFAULT(14): Bad address
> > clock_gettime03    6  TPASS  :  got expected failure: 
> > TEST_ERRNO=EFAULT(14): Bad address
> > <snip>
> > timer_create04    1  TFAIL  :  didn't fail as expected [expected errno = 22 
> > (Invalid argument)]: TEST_ERRNO=???(95): Operation not supported
> > timer_create04    2  TFAIL  :  didn't fail as expected [expected errno = 22 
> > (Invalid argument)]: TEST_ERRNO=???(95): Operation not supported
> > timer_create04    3  TPASS  :  failed as expected: TEST_ERRNO=EFAULT(14): 
> > Bad address
> > timer_create04    4  TPASS  :  failed as expected: TEST_ERRNO=EFAULT(14): 
> > Bad address
> > timer_create04    5  TPASS  :  failed as expected: TEST_ERRNO=EFAULT(14): 
> > Bad address
> > timer_create04    6  TPASS  :  failed as expected: TEST_ERRNO=EFAULT(14): 
> > Bad address
> > ------
> >
> > after ( patch merged )
> > ------
> > clock_gettime03    1  TPASS  :  got expected failure: 
> > TEST_ERRNO=EFAULT(14): Bad address
> > clock_gettime03    2  TPASS  :  got expected failure: 
> > TEST_ERRNO=EFAULT(14): Bad address
> > clock_gettime03    3  TPASS  :  got expected failure: 
> > TEST_ERRNO=EINVAL(22): Invalid argument
> > clock_gettime03    4  TPASS  :  got expected failure: 
> > TEST_ERRNO=EINVAL(22): Invalid argument
> > clock_gettime03    5  TPASS  :  got expected failure: 
> > TEST_ERRNO=EFAULT(14): Bad address
> > clock_gettime03    6  TPASS  :  got expected failure: 
> > TEST_ERRNO=EFAULT(14): Bad address
> > <snip>
> > timer_create04    1  TPASS  :  failed as expected: TEST_ERRNO=EINVAL(22): 
> > Invalid argument
> > timer_create04    2  TPASS  :  failed as expected: TEST_ERRNO=EINVAL(22): 
> > Invalid argument
> > timer_create04    3  TPASS  :  failed as expected: TEST_ERRNO=EFAULT(14): 
> > Bad address
> > timer_create04    4  TPASS  :  failed as expected: TEST_ERRNO=EFAULT(14): 
> > Bad address
> > timer_create04    5  TPASS  :  failed as expected: TEST_ERRNO=EFAULT(14): 
> > Bad address
> > timer_create04    6  TPASS  :  failed as expected: TEST_ERRNO=EFAULT(14): 
> > Bad address
> > ------
> >
> >> 2. *sigh* These constants should be autoconf conditionalized --
> >> otherwise when Linux devs decide to change their minds about the
> >> values of the constants or the values are different on different
> >> architectures you'll run into red-herring errors. The test should be
> >> resistant to this behavior, but currently isn't. This would also
> >> prevent `ENOSYS'-like errors from showing up on kernels < 2.6.32-rc1.
> >
> > i checked the frequency of adding clock in include/linux/time.h.
> >  2005-04-16    
> > CLOCK_REALTIME/CLOCK_MONOTONIC/CLOCK_PROCESS_CPUTIME_ID/CLOCK_THREAD_CPUTIME_ID
> >                (when git initialized)
> >  2008-08-21    CLOCK_MONOTONIC_RAW added
> >  2009-08-21    CLOCK_REALTIME_COARSE/CLOCK_MONOTONIC_COARSE added
> >  (from 
> > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=history;f=include/linux/time.h;h=6e026e45a179e2c66b347eb3834501a13be7ee2e;hb=aea187c46f7d03ce985e55eb1398d0776a15b928)
> > so, the frequency is slow, i think.
> > And, should to accept my patch at first. ;-)
> 
>     I've added the autoconf-conditionalized variables along with your
> changes, and some other minor cleanups to git just moments ago.
> Cheers,
> -Garrett

-- 
Thanks & Regards
Rishi
LTP Maintainer
IBM, LTC, Bangalore
Please join IRC #ltp @ irc.freenode.net

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