Re: ext4_alloc_context occupies 150 GiB of memory and makes the system unusable

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On 11/22/10 9:37 AM, Christoph Bartoschek wrote:

...

> I see the problem for the first time and I do not know whether it is 
> reproducable. We have several similar machines with similar workloads but none 
> has shown such a problem till now.
> 
> I'm going to reboot the machine. If it shows the problem again I will try a 
> newer kernel and then the patch.
> 
> Some workload will be lost, but the machine did not do anything useful for 
> three days now :)

at some point somebody needs to look at the slab cache management, I think;
even if ext4 is (ab)using this cache, having that much memory unreclaimable
in inactive caches is clearly a bug somewhere...!

-Eric
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