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Date:      Tue, 8 May 2018 16:37:52 -0700
From:      Matthew Macy <mmacy@freebsd.org>
To:        Mark Johnston <markj@freebsd.org>
Cc:        src-committers@freebsd.org, svn-src-all@freebsd.org,  svn-src-head@freebsd.org, Stephen Hurd <shurd@freebsd.org>
Subject:   Re: svn commit: r333345 - head/sys/dev/e1000
Message-ID:  <CAPrugNqveae2HLzfPSjZbD7yUwxxQSHjmtM2qGuH7%2B%2B-t%2BMnPg@mail.gmail.com>
In-Reply-To: <CAPrugNpu6XuR3sg3r1cjLGROmAh57%2BBmNVE0GkiG2Esk0rv_aA@mail.gmail.com>
References:  <201805080139.w481djMX062724@repo.freebsd.org> <20180508221025.GA4249@raichu> <CAPrugNpu6XuR3sg3r1cjLGROmAh57%2BBmNVE0GkiG2Esk0rv_aA@mail.gmail.com>

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Nix that. The panic is incorrect, we simply don't have anything to do
in the default case.

On Tue, May 8, 2018 at 4:31 PM, Matthew Macy <mmacy@freebsd.org> wrote:
> Can you please try the attached patch? (Note that gmail may insert
> carriage returns)
>
> -M
>
> On Tue, May 8, 2018 at 3:10 PM, Mark Johnston <markj@freebsd.org> wrote:
>> On Tue, May 08, 2018 at 01:39:45AM +0000, Matt Macy wrote:
>>> Author: mmacy
>>> Date: Tue May  8 01:39:45 2018
>>> New Revision: 333345
>>> URL: https://svnweb.freebsd.org/changeset/base/333345
>>>
>>> Log:
>>>   Sleep rather than spin in e1000 when doing long running config operations.
>>>
>>>   With r333218 it is now possible for drivers to use an sx lock and thus sleep while
>>>   waiting on long running operations rather than DELAY().
>>>
>>>   Reported by:        gallatin
>>>   Reviewed by:        sbruno
>>>   Approved by:        sbruno
>>>   MFC after:  1 month
>>>   Sponsored by:       Limelight Networks
>>>   Differential Revision:      https://reviews.freebsd.org/D14984
>>
>> I'm getting a panic during boot with this change: "unknown mac type d".
>>
>> It occurs while the driver is attaching to:
>>
>> em0@pci0:1:0:0: class=0x020000 card=0x7044103c chip=0x105e8086 rev=0x06 hdr=0x00
>>     vendor     = 'Intel Corporation'
>>     device     = '82571EB Gigabit Ethernet Controller'
>>     class      = network
>>     subclass   = ethernet

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