[ag-automation] 2.6.29.6-rt23 - Locking API testsuite Fail

[Thomas Gleixner]

On Tue, 18 Aug 2009, taejin kim wrote:

> Our product is ASIC (application-specific integrated circuit) chip for
> some purpose.
> So, it is hard to get our chipset. ^^;
> But I tried same test with well-known board, versatile. (Versatile
> board has ARM926EJ CPU)
> And I found same Error, the CONFIG_DEBUG_LOCKING_API_SELFTESTS hangs
> at (double unlock)-(rlock) pair.
> 
> 
> Test procedure:
> 
> 1. Set kernel config
> make versatile_defconfig
> (It is arm kernel’s default value.)
> 
> 2. Set Kernel hacking option for Locking API test
> -*- Spinlock and rw-lock debugging: basic checks
> -*- Lock debugging: detect incorrect freeing of live locks
> [*] Lock debugging: prove locking correctness
> [ ] Lock usage statistics
> [ ] Lock dependency engine debugging
> [ ] Spinlock debugging: sleep-inside-spinlock checking
> [*] Locking API boot-time self-tests

The lockdep self test seems to need some care on preempt-rt. We are
aware of that, but at the moment this is not high on our todo
list. Disabling the self tests should work fine.

Thanks,

	tglx