Messages in this thread | | | Date | Fri, 3 Oct 2008 00:06:13 +0530 | From | "Aneesh Kumar K.V" <> | Subject | Re: possible (ext4 related?) memory leak in kernel 2.6.26 |
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On Tue, Sep 30, 2008 at 10:27:29PM +0200, Quentin Godfroy wrote: > Hi lists, > > I'd like to report the following problem : after ~ 10 days' uptime on a > Debian 2.6.26-1-686 kernel, my system becomes extremely sluggish and > unresponsive and the OOM-killer starts targeting even innocent processes like > identd or rsync (when the swap is disabled). The machine is low on RAM (192 > MB) but this has never been a problem before. As for the slowness, strace > shows that the brk() syscall takes ages to complete; the blocking processes > are in the D state (and for some reason the kernel gives no wchan info). > > Free reports a large and constantly growing 'buffers' figure (more than > 50% of the available memory). No userland processes seems to be consuming > lare amounts of memory (sum of RSS in 'ps aux' is about 30 megs), and the > overall system is mostly idle. >
We actually fixed one in 6be2ded1d7c51b39144b9f07d2c839e1bd8707f1. It is not really a memory leak. But yes it was not releasing some the prealloc space memory.
-aneesh
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