Re: [PATCH] i386: convert mm_context_t semaphore to a mutex

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From: Ingo Molnar

Subject: Re: [PATCH] i386: convert mm_context_t semaphore to a mutex

Date: Monday, August 6, 2007 - 8:25 am

* Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> wrote:

quoted text> | hm, looks good to me but i'm wondering why this was a holdout for 
> | such a long time :-) Did you manage to test actual LDT functionality 
> | with this patch applied?
> 
>  No, I didn't. The only test I did was to run the kernel with this 
> patch applied.
> 
>  I'll manage to test it then. Do you have a test-case or has any 
> suggestion?

i think try any pthread program with:

   export LD_ASSUME_KERNEL=2.4.0

should trigger the LDT code. Try stracing the code and modify_ldt calls 
should show up.

quoted text>  Oh, btw, I forgot to 'quilt add arch/i386/mm/fault.c' [...]

heh. After a dozen of such incidents i scripted my editor command to 
automatically do the quilt add :)

	Ingo
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Messages in current thread:

[PATCH] i386: convert mm_context_t semaphore to a mutex, Luiz Fernando N. Cap ..., (Fri Aug 3, 6:55 am)

Re: [PATCH] i386: convert mm_context_t semaphore to a mutex, Ingo Molnar, (Mon Aug 6, 12:46 am)

Re: [PATCH] i386: convert mm_context_t semaphore to a mutex, Luiz Fernando N. Cap ..., (Mon Aug 6, 6:34 am)

Re: [PATCH] i386: convert mm_context_t semaphore to a mutex, Luiz Fernando N. Cap ..., (Mon Aug 6, 6:36 am)

Re: [PATCH] i386: convert mm_context_t semaphore to a mutex, Luiz Fernando N. Cap ..., (Mon Aug 6, 6:39 am)

Re: [PATCH] i386: convert mm_context_t semaphore to a mutex, Ingo Molnar, (Mon Aug 6, 8:25 am)

Re: [PATCH] i386: convert mm_context_t semaphore to a mutex, Luiz Fernando N. Cap ..., (Mon Aug 6, 10:15 am)

Re: [PATCH] i386: convert mm_context_t semaphore to a mutex, Ingo Molnar, (Mon Aug 6, 10:43 am)

Re: [PATCH] i386: convert mm_context_t semaphore to a mutex, Andi Kleen, (Mon Aug 6, 12:32 pm)

Re: [PATCH] i386: convert mm_context_t semaphore to a mutex, Luiz Fernando N. Cap ..., (Mon Aug 6, 1:36 pm)

Re: [PATCH] i386: convert mm_context_t semaphore to a mutex, Luiz Fernando N. Cap ..., (Mon Aug 6, 2:10 pm)