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Date:      Thu, 19 Feb 1998 15:34:31 -0800 (PST)
From:      Doug White <dwhite@gdi.uoregon.edu>
To:        Aleksey Zvyagin <zal@rest.ru>
Cc:        freebsd-hardware@FreeBSD.ORG, freebsd-bugs@FreeBSD.ORG, freebsd-questions@FreeBSD.ORG
Subject:   Re: Help! Memory leak in FreeBSD 2.2.5-RELEASE?! 
Message-ID:  <Pine.BSF.3.96.980219153238.658P-100000@gdi.uoregon.edu>
In-Reply-To: <34EBE609.5B32E7C2@rest.ru>

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On Thu, 19 Feb 1998, Aleksey Zvyagin wrote:

> Memory in 1:59:00 (1:59am)
> -----------------
> last pid:  4764;  load averages:  0.00,  0.00,  0.00    01:59:00
> 27 processes:  1 running, 26 sleeping
> 
> Mem: 6788K Active, 2840K Inact, 9164K Wired, 4877K Buf, 43M Free
>           ^^^^^^ Memory is OK
> Swap: 120M Total, 64K Used, 120M Free
> -----------------
> 
> Memory in 2:00:00
> -----------------
> last pid:  4781;  load averages:  0.00,  0.00,  0.00    02:00:00
> 31 processes:  3 running, 28 sleeping
> 
> Mem: 7136K Active, 2840K Inact, 9308K Wired, 4926K Buf, 43M Free
> Swap: 120M Total, 64K Used, 120M Free
> -----------------

At 2AM, the system runs some maintenance that includes some big find
operations.  The system's memory and disk usage will be pretty inflated
for the next or 10 minutes, until 2:10am or so.

> Mem: 13M Active, 3156K Inact, 12M Wired, 7158K Buf, 33M Free
>           ^^^^
> Swap: 120M Total, 64K Used, 120M Free

If you were having leak problems, your swap would start growing.  You're
not using any swap through all of this, and you have 33MB of memory that
isn't even being used for disk buffering!  

I wouldn't be worried.

> I did not find a processes those were using a more memory!
> I made the conclusion that a memory leak is in kernel!
> I tried with other mainboard (Chipset Inte 437VX, SIMM 16 Mb) this hard
> with FreeBSD but memory was stable on 7-8Mb against the 17M at 11:23
> (see above)

Did you check the system log to see if any messages were present before
the hang?

Can you characterize the hang better?  can you change consoles? Login?
Ping the machine?  

Doug White                              | University of Oregon  
Internet:  dwhite@resnet.uoregon.edu    | Residence Networking Assistant
http://gladstone.uoregon.edu/~dwhite    | Computer Science Major



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