Date: Thu, 26 Oct 2017 09:26:39 +1030 From: "O'Connor, Daniel" <darius@dons.net.au> To: Colin Percival <cperciva@tarsnap.com> Cc: "freebsd-current@freebsd.org" <freebsd-current@freebsd.org> Subject: Re: RFC: Removing hpt* drivers from GENERIC Message-ID: <F3768FBF-A2DF-47CE-97E6-1646C7B6BE06@dons.net.au> In-Reply-To: <0100015f557d9cd2-098d2e99-d4c4-45ce-90bf-47b76455a6de-000000@email.amazonses.com> References: <0100015f557d9cd2-098d2e99-d4c4-45ce-90bf-47b76455a6de-000000@email.amazonses.com>
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> On 26 Oct 2017, at 08:13, Colin Percival <cperciva@tarsnap.com> wrote: > 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.) >=20 > 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. Seems sensible to me, but also worth contacting the blob authors if = possible and asking them what gives (and if they can fix it). -- Daniel O'Connor "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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