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From: Blaisorblade <blaisorblade@yahoo.it>
To: user-mode-linux-devel@lists.sourceforge.net
Subject: Re: [uml-devel] [PATCH 10/12] UML - Allow host capability usage to be disabled
Date: Fri, 2 Sep 2005 12:39:23 +0200
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Cc: Jeff Dike <jdike@addtoit.com>, akpm@osdl.org, linux-kernel@vger.kernel.org,
       Bodo Stroesser <bstroesser@fujitsu-siemens.com>
References: <200509012217.j81MHKE7011567@ccure.user-mode-linux.org>
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On Friday 02 September 2005 00:17, Jeff Dike wrote:
> From: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
>
> Add new cmdline setups:
>   - noprocmm
>   - noptracefaultinfo
> In case of testing, they can be used to switch off usage of
> /proc/mm and PTRACE_FAULTINFO independently.
Is "skas0" cmd line option preserved?
> Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
> Signed-off-by: Jeff Dike <jdike@addtoit.com>
>
> Index: test/arch/um/os-Linux/start_up.c
> ===================================================================
> --- test.orig/arch/um/os-Linux/start_up.c	2005-09-01 16:42:42.000000000
> -0400 +++ test/arch/um/os-Linux/start_up.c	2005-09-01 16:51:23.000000000
> -0400 @@ -275,6 +275,30 @@
>  	check_ptrace();
>  }
>
> +static int __init noprocmm_cmd_param(char *str, int* add)
> +{
> +	proc_mm = 0;
> +	return 0;
> +}
> +
> +__uml_setup("noprocmm", noprocmm_cmd_param,
> +"noprocmm\n"
> +"    Turns off usage of /proc/mm, even if host supports it.\n"
> +"    To support /proc/mm, the host needs to be patched using\n"
> +"    the current skas3 patch.\n\n");
> +
> +static int __init noptracefaultinfo_cmd_param(char *str, int* add)
> +{
> +	ptrace_faultinfo = 0;
> +	return 0;
> +}
> +
> +__uml_setup("noptracefaultinfo", noptracefaultinfo_cmd_param,
> +"noptracefaultinfo\n"
> +"    Turns off usage of PTRACE_FAULTINFO, even if host supports\n"
> +"    it. To support PTRACE_FAULTINFO, the host needs to be patched\n"
> +"    using the current skas3 patch.\n\n");
> +
>  #ifdef UML_CONFIG_MODE_SKAS
>  static inline void check_skas3_ptrace_support(void)
>  {
>
>
>
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-- 
Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!".
Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894)
http://www.user-mode-linux.org/~blaisorblade

	

	
		
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