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Date:      Sun, 5 Apr 2015 20:39:47 +0200
From:      Mateusz Guzik <mjguzik@gmail.com>
To:        Dmitry Chagin <dchagin@FreeBSD.org>
Cc:        svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org
Subject:   Re: svn commit: r281113 - head/sys/vm
Message-ID:  <20150405183947.GA24293@dft-labs.eu>
In-Reply-To: <201504051825.t35IPO7t078390@svn.freebsd.org>
References:  <201504051825.t35IPO7t078390@svn.freebsd.org>

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On Sun, Apr 05, 2015 at 06:25:24PM +0000, Dmitry Chagin wrote:
> Author: dchagin
> Date: Sun Apr  5 18:25:23 2015
> New Revision: 281113
> URL: https://svnweb.freebsd.org/changeset/base/281113
> 
> Log:
>   Fix wrong kassert msg in uma.
>   
>   PR:		199172
>   Submitted by:	luke.tw gmail com
>   MFC after:	1 week
> 
> Modified:
>   head/sys/vm/uma_core.c
> 
> Modified: head/sys/vm/uma_core.c
> ==============================================================================
> --- head/sys/vm/uma_core.c	Sun Apr  5 17:09:58 2015	(r281112)
> +++ head/sys/vm/uma_core.c	Sun Apr  5 18:25:23 2015	(r281113)
> @@ -3060,7 +3060,7 @@ uma_zone_set_fini(uma_zone_t zone, uma_f
>  	uma_keg_t keg;
>  
>  	keg = zone_first_keg(zone);
> -	KASSERT(keg != NULL, ("uma_zone_set_init: Invalid zone type"));
> +	KASSERT(keg != NULL, ("uma_zone_set_fini: Invalid zone type"));
>  	KEG_LOCK(keg);
>  	KASSERT(keg->uk_pages == 0,
>  	    ("uma_zone_set_fini on non-empty keg"));
> @@ -3100,7 +3100,7 @@ uma_zone_set_freef(uma_zone_t zone, uma_
>  	uma_keg_t keg;
>  
>  	keg = zone_first_keg(zone);
> -	KASSERT(keg != NULL, ("uma_zone_set_init: Invalid zone type"));
> +	KASSERT(keg != NULL, ("uma_zone_set_freef: Invalid zone type"));
>  	KEG_LOCK(keg);
>  	keg->uk_freef = freef;
>  	KEG_UNLOCK(keg);
> 

This seems to be a recurring problem (go figure).

Was __func__ usage flamed over?

I really think that linux's oops-like dump would be of great help here.
It includes file + line info along with register dump which alone can
give sufficient hints in several cases.

-- 
Mateusz Guzik <mjguzik gmail.com>



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