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Date:      Thu, 9 Oct 1997 23:44:08 -0500 (EST)
From:      "John S. Dyson" <toor@dyson.iquest.net>
To:        mike@smith.net.au (Mike Smith)
Cc:        mdean@best.com, freebsd-hackers@FreeBSD.ORG
Subject:   Re: free() in device drivers
Message-ID:  <199710100444.XAA16818@dyson.iquest.net>
In-Reply-To: <199710100347.NAA00721@word.smith.net.au> from Mike Smith at "Oct 10, 97 01:17:04 pm"

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Mike Smith said:
> > 
> > If I do a malloc (p, M_DEVBUF, M_NOWAIT);
> > 
> > then find a problem in my attach routine, can I do a free(p, M_DEVBUF) to
> > recover that memory?
> 
> No.  In fact, the memory will remain allocated over even cold 
> reboots, and you will have to open the system, identify which SIMM the 
> memory was allocated on, remove it and wrap it in aluminium foil for 
> half an hour to discharge the DRAM capacitors and clear the allocation.
> 
Ahhh... That is where one of my memory leaks is...  (:-)).  I suggest that
a smiley have been used in the previous response :-).

-- 
John
dyson@freebsd.org
jdyson@nc.com



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