Re: Can someone explain under what condition inode cache pages can be swapped out?

From: Al Boldi
Date: Fri Aug 04 2006 - 10:40:55 EST

Jan Engelhardt wrote:
> > If my understanding is right, inode cache shrinker only frees the
> > reclaimable inodes, which means, if a lot of files are opened when
> > shrinker is activated, the shrinker may not find sufficient
> > reclaimable inodes to free enough space. What will Linux do under such
> > condition?
> Userspace will start to be swapped out to make room for kernel memory.
> And if the swap is full, the OOM killer comes into action and will kill
> programs.

The OOM-killing spree starts way before swap is full :(
see "swapping and oom-killer: gfp_mask=0x201d2, order=0" thread.



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