Date: Mon, 1 Jul 2013 11:26:41 -0600 From: Warner Losh <imp@bsdimp.com> To: Oleksandr Tymoshenko <gonzo@bluezbox.com> Cc: freebsd-arm@freebsd.org, Jordan Hubbard <jordan.hubbard@gmail.com> Subject: Re: Raspberry pi not ready to self-host yet? Message-ID: <3B13E6CD-0681-45F4-86AD-5B7E86A1750B@bsdimp.com> In-Reply-To: <489E95FC-AF71-483C-BA08-81276B850B7F@bluezbox.com> References: <800732D1-B06A-40AE-AE69-F6170662B2AA@turbofuzz.com> <20130626235542.27844683@ivory.wynn.com> <79CFABCE-156A-44B5-B989-A3607C47B2AF@mail.turbofuzz.com> <20130627013142.5fdb2544@ivory.wynn.com> <DC57FE36-8A1B-4372-A3E8-82CCB9730FDC@turbofuzz.com> <20130627111623.137ad2ca@ivory.wynn.com> <20130627215424.GA2441@night.db.net> <463D25BB-88D6-4B2E-A7F2-05A8B0525571@gmail.com> <489E95FC-AF71-483C-BA08-81276B850B7F@bluezbox.com>
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On Jul 1, 2013, at 2:33 AM, Oleksandr Tymoshenko wrote: >=20 > On 2013-07-01, at 1:14 AM, Jordan Hubbard <jordan.hubbard@gmail.com> = wrote: >=20 >> Well, I managed to build and install an RPI-B kernel on the PI itself = last night using gcc as the compiler, but it doesn't boot. I get the = dreaded "kernel boot args: (null)" and then a hang before even getting = into the device probes. >=20 > It crashes due to INVARIANTS options in kernel config. I'm going to > look into this problem some time next week unless someone beats me to = it.=20 > Just disable them for now.=20 >=20 > The issue with empty console is that if there is "device sc" in > kernel config syscons becomes default console. And if crash happens > before frame buffer driver is initialize no output from kernel appears > anywhere. Add set boot_multicons=3D"YES" to /boot/loader.rc or remove > syscons-related stuff from kernel config.=20 I've long wondered why we don't make this the default. The number of = systems with a free serial port is huge, and the number with some = hardware on it are small enough to be manageable by turning it off. If = not globally, at least for arm. Warner
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