https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=217606
Fabian Keil <f...@fabiankeil.de> changed:
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CC| |f...@fabiankeil.de
--- Comment #13 from Fabian Keil <f...@fabiankeil.de> ---
There's a uma-related regression in FreeBSD 11 that can result
in somewhat similar symptoms. For details see #209680.
You could check the vmstat -z output and try the patch:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=209680#c2
which reverts some of the problematic commits (only in the tcp code,
though).
Apparently some of the other uma-consumers are affected as well:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=209680#c10
and I'm wondering if if_bridge is one of them.
You could try if it makes a difference if you let if_bridge set the
UMA_ZONE_NOFREE flag and preallocate a couple of items.
>From your report it isn't obvious to me that your problem is
uma-related so if you have other leads you may want to investigate
them first.
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