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Date:      Thu, 3 May 2018 19:27:43 -0500
From:      Tim Chase <freebsd@tim.thechases.com>
To:        Tim Chase <freebsd@tim.thechases.com>, "freebsd-wireless@freebsd.org" <freebsd-wireless@freebsd.org>
Subject:   Re: ath0: could not map interrupt (again?)
Message-ID:  <20180503192743.639240d0@bigbox.christie.dr>
In-Reply-To: <20180502211001.550d290c@bigbox.christie.dr>
References:  <20180502165745.59a5bfc4@bigbox.christie.dr> <CAJ-Vmo=uAB4Yv8fTu6yP5tDh82FtgFHQFDRWOGmNLYsABTvENw@mail.gmail.com> <20180502211001.550d290c@bigbox.christie.dr>

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On 2018-05-02 21:10, Tim Chase wrote:
> On 2018-05-02 23:21, Adrian Chadd wrote:
> > CAn you try booting freebsd-head and see if it's any better?  
> 
> At your advice, I created a boot image of 12.0-CURRENT r333017 but
> see the same  "could not map interrupt" in my dmesg that I got on
> 11.x

If it makes any difference, booting OpenBSD 6.3 on the machine says
they're both successfully on INT 17 (the ath0/athn0 works there)

ppb0 at pci0 dev 28 function 0 "Intel SCH PCIE" rev 0x07: apic 2 int 17
...
athn0 at pci2 dev 0 function 0 "Atheros AR9281" rev 0x01: apic 2 int 17
athn0: AR9280 rev 2 (2T2R), ROM rev 22, address 00:24:d2:b3:8c:b4

so it looks like the interrupt *can* be shared, it just appears that
FreeBSD is doing something peculiar with it.

-tim






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