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From: John Baldwin <jhb@freebsd.org>
To: "Intron is my alias on the Internet" <mag@intron.ac>
Date: Mon, 11 Sep 2006 15:28:48 -0400
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Cc: freebsd-hackers@freebsd.org, Alexander Leidinger <netchild@freebsd.org>
Subject: Re: PERFORCE change 105930 for review
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On Monday 11 September 2006 14:51, Intron is my alias on the Internet wrote:
> Alexander Leidinger wrote:
> 
> > Quoting John Baldwin <jhb@freebsd.org> (Mon, 11 Sep 2006 11:45:52 -0400):
> > 
> >> On Sunday 10 September 2006 05:56, Alexander Leidinger wrote:
> >> > 	PROBLEMS:
> >> > 	
> >> > 	1. Why does uma_zdestroy(9) print message like:
> >> > 	
> >> > 	      Freed UMA keg was not empty (100 items).  Lost 2 pages of 
memory.
> >> > 	
> >> > 	   Does it represent any problems?
> >> 
> >> It means a memory leak.
> > 
> > Because this is verbatim from the submitter and I don't know if he is
> > subscribed to perforce@, we should tell him about it... CCed. :-)
> > 
> > Bye,
> > Alexander.
> > 
> 
> But I have ensure that calling to uma_zalloc() and calling to uma_zfree()
> appear strictly in pair in my code. Even the simplest testing program
> can still lead to this kind of warning message (uma_zfree() is just next
> to uma_zalloc()):
> 
> uma_zalloc(...);
> uma_zfree(...);

I've only gotten this message when I've leaked memory in a zone.  Do you have 
an example self-contained kernel module that produces this?

-- 
John Baldwin