kmalloc(,GFP_NOIO) failure. i.e. transient out-of-phyical-memory
condition.
I suspect that kmalloc tends to fail only occasionally as the failure
will then to slow allocation requests down, and give the VM system a
bit of time to write more stuff out to disc and so free up memory.
I am fairly sure that without the patch it will happen again, but
maybe not straight away.
NeilBrown
>
> Running out of memory is quite common with the kernel always filling up
> buffers and cache, but running out of memory+swap is not common (and I know
> I didn't hit that in my setup!)
>
> Thanks for your help,
>
> -Dave
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