Re: RELENG_7 amd64; memory and vm.kmem_size



Jeremy Chadwick wrote:
[...]
vm.kmem_size="3584M"
vm.kmem_size_max="3584M"

Upon reboot, the kernel immediately panic'd with the following message:

kmem_suballoc(): bad status return of 3.

I then chose smaller values (going with 2048M); same panic.

I remember someone on the -fs list explained that there's
currently a hard limit for kmem at 2 GB minus epsilon.
So I suggest trying to set it to slightly less than 2 GB.

And yes, I agree that is unfortunate, because there are
high ZFS workloads where more than 2 GB kmem would be
useful. I hope this design limitation can be alleviated
somehow in the future.

Best regards
Oliver

--
Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M.
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-- Erwin Dieterich
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