[Bug 223950] lower default kern.cam.da.X.delete_max to avoid ZFS TRIM timeouts

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Thu Feb 7 07:51:25 UTC 2019


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=223950

Poul-Henning Kamp <phk at FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |phk at FreeBSD.org

--- Comment #1 from Poul-Henning Kamp <phk at FreeBSD.org> ---
Seconded.

I just triggered a driver panic because zpool create BIO_DELETED entire 2TB SSD
drives.

There is no relevant performance loss in clamping delete_max to something in
the MB-GB range.

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