[Bug 257314] FBSD 13 crash after some KDE parts crash supposing out of swap space

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 22 Jul 2021 00:08:06 UTC

--- Comment #4 from Mark Millard <marklmi26-fbsd@yahoo.com> ---
(In reply to Mark Millard from comment #3)

By the way, for reference:

# sysctl -d vm.pageout_oom_seq
vm.pageout_oom_seq: back-to-back calls to oom detector to start OOM

(As I remember teh default is 12 for the above.)

# sysctl -d vm.pfault_oom_attempts
vm.pfault_oom_attempts: Number of page allocation attempts in page fault
handler before it triggers OOM handling

(-1 for the above disables the pfault OOM handling.)

# sysctl -d vm.pfault_oom_wait
vm.pfault_oom_wait: Number of seconds to wait for free pages before retrying
the page fault handler

All 3 of those show up under both sysctl -T and sysctl -W .

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