Re: 100% CPU time for sysctl command, not killable

From: Alexander Leidinger <Alexander_at_Leidinger.net>
Date: Thu, 07 Sep 2023 07:02:13 UTC 
Am 2023-09-03 21:22, schrieb Alexander Leidinger:
> Am 2023-09-02 16:56, schrieb Mateusz Guzik:
>> On 8/20/23, Alexander Leidinger <Alexander@leidinger.net> wrote:
>>> Hi,
>>> 
>>> sysctl kern.maxvnodes=1048576000 results in 100% CPU and a 
>>> non-killable
>>> sysctl program. This is somewhat unexpected...
>>> 
>> 
>> fixed here 
>> https://cgit.freebsd.org/src/commit/?id=32988c1499f8698b41e15ed40a46d271e757bba3
> 
> I confirm.

There may be dragons...:
kern.maxvnodes: 1048576000
vfs.wantfreevnodes: 262144000
vfs.freevnodes: 0              <-----------------------
vfs.vnodes_created: 11832359
vfs.numvnodes: 146699
vfs.recycles_free: 4700765
vfs.recycles: 0
vfs.vnode_alloc_sleeps: 0

Another time I got an insanely huge amount of free vnodes (more than 
maxvnodes).

Bye,
Alexander.

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