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Date:      Sun, 22 Jul 2001 11:06:26 +0300
From:      Peter Pentchev <roam@orbitel.bg>
To:        arch@FreeBSD.org
Subject:   Re: kern/29131: Current hungs in sysctl -a while booting + patch
Message-ID:  <20010722110626.A819@ringworld.oblivion.bg>
In-Reply-To: <200107220334.f6M3YRe01219@kan.dnsalias.net>; from kabaev@mail.ru on Sat, Jul 21, 2001 at 11:34:27PM -0400
References:  <200107220334.f6M3YRe01219@kan.dnsalias.net>

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Hi,

Can anyone envision any side effects from committing the patch
in this PR?  Seems like a trivial fix for a typo to me..

G'luck,
Peter

-- 
If I were you, who would be reading this sentence?

On Sat, Jul 21, 2001 at 11:34:27PM -0400, Alexander N. Kabaev wrote:
> 
> >Number:         29131
> >Category:       kern
> >Synopsis:       Current hungs in sysctl -a while booting + patch
> >Originator:     Alexander N. Kabaev
> >Release:        FreeBSD 5.0-CURRENT i386
> >Organization:
> Verizon
> >Environment:
> System: FreeBSD kan.dnsalias.net 5.0-CURRENT FreeBSD 5.0-CURRENT #1: Sat Jul 21 23:05:49 EDT 2001 root@kan.dnsalias.net:/usr/src/sys/i386/compile/KAN i386
> 
> >Description:
> 	-CURRENT appears to hung while booting because sysctl -a never
> 	finishes. ^C can be used to interrupt the sysctl execution and
> 	to continue booting. 
> 	
> 	It appears, that a sysctl oid_number collision is happening. Namely,
> 	sysctl_register_oid allocates new numbers for OID_AUTO sysctl nodes
> 	starting from the number 100, while at the same time kernel registers
> 	predefined sysctls with ids as high as 255 (see SYSCTL_NODE for
> 	net.inet.raw). If I raise the starting number for dynamic sysctls
> 	to be 255, the problem disappears.
> 
> >How-To-Repeat:
> 	N/A
> >Fix:
> 
> Index: kern_sysctl.c
> ===================================================================
> RCS file: /home/ncvs/src/sys/kern/kern_sysctl.c,v
> retrieving revision 1.110
> diff -u -u -r1.110 kern_sysctl.c
> --- kern_sysctl.c	2001/06/22 19:54:38	1.110
> +++ kern_sysctl.c	2001/07/22 03:04:45
> @@ -113,7 +113,7 @@
>  	 * 100 to leave space for pre-assigned oid numbers.
>  	 */
>  	if (oidp->oid_number == OID_AUTO) {
> -		static int newoid = 100;
> +		static int newoid = 0x100;
>  
>  		oidp->oid_number = newoid++;
>  		if (newoid == 0x7fffffff)

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