Re: [PATCH] Negative (setpoint-dirty) in bdi_position_ratio()

From: paul . szabo
Date: Thu Jan 24 2013 - 20:47:55 EST

Dear Fengguang,

> There are 260MB reclaimable slab pages in the normal zone ...

Marked "all_unreclaimable? yes": is that wrong? Question asked also in:

> ... however we somehow failed to reclaim them. ...

I made a patch that would do a drop_caches at that point, please see:;filename=drop_caches.patch;att=1;bug=695182
and that successfully avoided OOM when writing files.
But, the drop_caches patch did not protect against the "sleep test".

> ... What's your filesystem and the content of /proc/slabinfo?

Filesystem is EXT3. See output of slabinfo in Debian bug above or in

Thanks, Paul

Paul Szabo psz@xxxxxxxxxxxxxxxxx
School of Mathematics and Statistics University of Sydney Australia
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