Re: RFC: Removing hpt* drivers from GENERIC

From: Warner Losh <>
Date: Wed, 25 Oct 2017 16:29:59 -0600
On Wed, Oct 25, 2017 at 3:43 PM, Colin Percival <>

> Hi developers,
> I'd like to remove the hpt* drivers from GENERIC.  These are the drivers
> for the HighPoint storage hardware -- SATA (hptnr) and RAID (hpt27xx,
> hptiop,
> hptmv, hptrr).
> My reason for wanting to remove them is that the hpt27xx and hptnr drivers
> spend ~150 ms in their DEVICE_PROBE routines every time the system boots.
> Since they are roughly 1000x slower than the median driver, this is clearly
> excessive; unfortunately the time is being spent inside a binary blob, so
> there is no apparent way to fix the drivers.  (The other three drives from
> the same vendor -- hptiop, hptmv, and hptrr -- don't exhibit this
> particular
> bug, but I don't see any strong argument in favour of not removing them
> along
> with the two problem drivers.)
> All of these are available via kernel modules, so the impact upon users
> should be minimal.  Obviously I would not plan on MFCing this change.
> Any objections?

Works for me. Given that the user can load the modules by hand, it should
be minimal impact. It needs to be in the release notes. And we should make
sure that the installer copes if the user starts a shell and loads it after
the installer has started...  Though that's not a gating issue.

Received on Wed Oct 25 2017 - 20:30:01 UTC

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