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Date: Fri, 23 Feb 2007 16:05:20 +0100
From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
MIME-Version: 1.0
Subject: Re: [Xenomai-core] latency hangs on AT91RM9200
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To: Steven Scholz <steven.scholz@domain.hid>
Cc: Xenomai-core@domain.hid

Steven Scholz wrote:
> Hi,
> 
> 
>>>schedule. Anyway, I think the tracer will give better results than a
>>>simple backtrace.
>>
>>Ok. Thanks.
>>
>>So what exactly shell I do? I have never worked with "the tracer".
> 
> 
> Just enabled
> 
> CONFIG_IPIPE_DEBUG=y
> CONFIG_IPIPE_TRACE=y
> CONFIG_IPIPE_TRACE_ENABLE=y
> CONFIG_IPIPE_TRACE_MCOUNT=y
> CONFIG_IPIPE_TRACE_IRQSOFF=y
> CONFIG_IPIPE_TRACE_SHIFT=15
> # CONFIG_IPIPE_TRACE_VMALLOC is not set
> CONFIG_IPIPE_TRACE_ENABLE_VALUE=1
> 
> but get
> 
>   CC      arch/arm/kernel/asm-offsets.s
> In file included from include/linux/bitops.h:9,
>                  from include/linux/thread_info.h:20,
>                  from include/linux/preempt.h:9,
>                  from include/linux/spinlock.h:49,
>                  from include/linux/capability.h:45,
>                  from include/linux/sched.h:46,
>                  from arch/arm/kernel/asm-offsets.c:13:
> include/asm/bitops.h: In function `____atomic_set_bit':
> include/asm/bitops.h:40: warning: implicit declaration of function `local_test_iflag_hw'

At first sight, replacing local_test_iflag_hw with
raw_irqs_disabled_flags should work.

-- 
                                                 Gilles Chanteperdrix