[Bug 277389] Reproduceable low memory freeze on 14.0-RELEASE-p5

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=277389

--- Comment #17 from pascal.guitierrez@gmail.com ---
(In reply to Kurt Jaeger from comment #13)

hi kurt,

the issue is triggered upon the read tests and from your logs looks like the
iozone test did not conduct those tests (-i 1)?

from what i can tell it seems to have only done the WRITE tests (initial
writers and rewriters)?

i have a revised set of command line options:
iozone -i 0 -w -l 512 -+n -r 128k -s 1g # create the initial test files and
retain them
iozone -w -i 1 -l 512 -r 4k -s 1g # run read test that should trigger OOM
(within a few seconds on my nvme pool)

see how that goes?


hi mark,

before the test i set vm.pageout_oom_seq=1024, made no difference, system still
OOM and deadlocked on read tests

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