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Date:      Mon, 01 Aug 2016 16:50:33 +0200
From:      Benny Goemans <benny.goemans@belgacom.net>
To:        Luiz Otavio O Souza <lists.br@gmail.com>
Cc:        freebsd-arm@freebsd.org
Subject:   Re: 11.0-BETA2: PWM on Beagle Bone Black kernel panic?
Message-ID:  <24212ba41752cf3b8fa4e5da01b4a7d5@roundcube.malavon.com>
In-Reply-To: <CAB=2f8ySb-Hpuz=6RHrfz%2BFiJtwMa-FWMpb4qvjaJg7apkp-0g@mail.gmail.com>
References:  <8564a38f541adda22c9aaafa8ed856f0@roundcube.malavon.com> <dc27ec83-b982-b33d-1c47-c008106a4764@belgacom.net> <CAB=2f8ySb-Hpuz=6RHrfz%2BFiJtwMa-FWMpb4qvjaJg7apkp-0g@mail.gmail.com>

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Luiz Otavio O Souza schreef op 2016-07-31 21:57:
> On 31 July 2016 at 08:55, Benny Goemans wrote:
>> On 31-07-2016 13:17, Benny Goemans wrote:
>>> All,
>>> 
>>> I've tried enabling PWM on a Beagle Bone Black (tried both PWM 1 & 2)
>>> by modifying the DTS. Once I reboot the boot ends with a kernel 
>>> panic.
>>> Now, I might simply be doing something wrong which is why I haven't
>>> created a bug for this yet. I haven't used PWM with FreeBSD in quite 
>>> a
>>> long time.
>>> Kernel output is attached below. No other changes were made to the
>>> default BETA2 image, downloaded from
>>> ftp://ftp.freebsd.org/pub/FreeBSD/releases/arm/armv6/ISO-IMAGES/11.0/FreeBSD-11.0-BETA2-arm-armv6-BEAGLEBONE.img.xz).
>>> 
> [...]
>> Another thing I just noticed, this does seem to be working correctly
>> when I disable devd. The clue came from the "Starting devd." right
>> before the crash of course. I suppose this isn't intented, but at 
>> least
>> there's a possible workaround.
> 
> This issue was fixed by r302988.  I'll ask re@ about the MFC.
> 
> Luiz

Good to know. If I find the time to do a full rebuild I'll test that 
patch as well.

Aside from that everything seems to be working correctly on the BBB, at 
least the parts that I tested during the weekend.

Benny



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