From owner-freebsd-current  Sat Apr 27 11:26:50 2002
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Date: Sat, 27 Apr 2002 11:26:46 -0700 (PDT)
From: Shizuka Kudo <shizukakudo_99@yahoo.com>
Subject: Re: Recent commit to sys/kern/kern_environment.c broke reading tunables
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--- Bruce Evans <bde@zeta.org.au> wrote:
> On Fri, 26 Apr 2002, Shizuka Kudo wrote:
> 
> > It seems the latest commit of
> > sys/kern/kern_environment to current broke the
> reading
> > of system tunables set by loader.conf. This is
> true at
> > least for hw.cbb.start_mem of my cardbus bridge.
> With
> > this latest commit, the hw.cbb.start_mem sysctl
> still
> > shows the default value after boot up.
> >
> > Reverting back to version 1.22 solve my problem.
> Is
> > this unique to me?
> 
> The tunable for this sysctl spelled inconsistently
> as
> "hw.cbb.start_memory", so rev.1.23 "fixed" finding
> it if it is
> misspelled in the environment as "hw.cbb.start_mem".
>  From
> dev/pccbb/pccbb.c:
> 
> 	/* There's no way to say TUNEABLE_LONG to get the
> right types */
> 	u_long pccbb_start_mem = PCCBB_START_MEM;
> 	TUNABLE_INT("hw.cbb.start_memory", (int
> *)&pccbb_start_mem);
> 	SYSCTL_ULONG(_hw_cbb, OID_AUTO, start_mem,
> CTLFLAG_RD,
> 	    &pccbb_start_mem, PCCBB_START_MEM,
> 	    "Starting address for memory allocations");
> 
> Does changing the spelling in the environment to
> match the tunable
> fix the problem?
> 
> Bruce
> 

This is the problem for me. I overlooked and should
have checked it first.

Thanks

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