[Bug 234906] kernel panic: softdep_setup_inomapdep: dependency 0xfffff80107d15c00 for newinode already exists

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=234906

--- Comment #19 from johan van Zanten <johanvz816 at giantfoo.org> ---
This is mostly an insubstantial update:

I've not seen either file system related panic since 12 Jan (the ones already
documented here).  I have tried recompiling kernels a few times, to no effect.

FWiW, most of the I/O in these situations is with the HD (not the SSD) as i've
deliberately kept things off of the SSD that "change a lot" in order to prolong
the life of the SSD.  So while the OS and installed packages are on the SSD, my
homedir and /usr/src are on the HD. I do this with nullfs mounts and symlinks.

This might be significant because my web browser's cache is on the HD, and
there's a certain about of randomish churn that takes place.  Perhaps the
combination of the browser I/O and a 4-job build (with ccache) that sometimes
produces the panic.

If i can isolate something that seems to cause the panics, i'll try disabling
TRIM and see if the panics go away.

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