Re: Gigantic memory leak in linux-2.6.[789]!

[Chris Friesen]

Gene Heskett wrote:

> Stable, yes.  But only after about 3 or 4 iterations.  The first 3 
> rather handily used 500+ megs of memory that I did not get back when 
> I stopped it and cleaned up the mess.

Did you run a memory hog to put memory pressure on the system?

The following is with 2.6.9-rc4

-bash-2.05b$ while true ; do tar -xjf linux-2.6.7.tar.bz2 ; rm -rf linux-2.6.7 ; 
vmstat ; done
procs                      memory      swap          io     system         cpu
 r  b   swpd   free   buff  cache   si   so    bi    bo   in    cs us sy wa id
 1  0      0 1675768 104004 112576    0    0     0     1   11     2  0  0  0 10
procs                      memory      swap          io     system         cpu
 r  b   swpd   free   buff  cache   si   so    bi    bo   in    cs us sy wa id
 1  1      0 1649032 110792 112724    0    0     0     1   11     3  0  0  0 10
procs                      memory      swap          io     system         cpu
 r  b   swpd   free   buff  cache   si   so    bi    bo   in    cs us sy wa id
 1  0      0 1630472 118580 112620    0    0     0     2   11     3  0  0  0 10
procs                      memory      swap          io     system         cpu
 r  b   swpd   free   buff  cache   si   so    bi    bo   in    cs us sy wa id
 1  0      0 1607560 125500 112636    0    0     0     2   11     3  0  0  0 10


After running a memory hog,

-bash-2.05b$ vmstat
procs                      memory      swap          io     system         cpu
 r  b   swpd   free   buff  cache   si   so    bi    bo   in    cs us sy wa id
 0  0      0 1890248    672   4836    0    0     0     3   11     3  0  0  0 10


Looks like the cached memory all got freed, which is exactly as expected.

Chris
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/