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Date:      Sun, 20 Jan 2019 22:04:02 +0000
From:      bugzilla-noreply@freebsd.org
To:        fs@FreeBSD.org
Subject:   [Bug 234906] kernel panic: softdep_setup_inomapdep: dependency 0xfffff80107d15c00 for newinode already exists
Message-ID:  <bug-234906-3630-9OJXCpGPvZ@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-234906-3630@https.bugs.freebsd.org/bugzilla/>
References:  <bug-234906-3630@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D234906

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

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

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 pro=
long
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 symlin=
ks.

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 sometim=
es
produces the panic.

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

--=20
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