Date: Sat, 22 Nov 2014 22:31:55 +0100 From: Bernd Walter <ticso@cicely7.cicely.de> To: Warner Losh <imp@bsdimp.com> Cc: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org>, ticso@cicely.de, Ian Lepore <ian@freebsd.org> Subject: Re: new support for Raspberry Pi B+ Message-ID: <20141122213155.GB22446@cicely7.cicely.de> In-Reply-To: <FBF07CE7-2DF2-4A2A-9E90-61DFA0A1B829@bsdimp.com> References: <5470E81A.3070009@foxvalley.net> <20141122200952.GA22446@cicely7.cicely.de> <5470F87D.1040208@foxvalley.net> <1416690352.1147.333.camel@revolution.hippie.lan> <FBF07CE7-2DF2-4A2A-9E90-61DFA0A1B829@bsdimp.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Sat, Nov 22, 2014 at 02:20:02PM -0700, Warner Losh wrote: > > On Nov 22, 2014, at 2:05 PM, Ian Lepore <ian@FreeBSD.org> wrote: > > > On Sat, 2014-11-22 at 13:56 -0700, Dan Raymond wrote: > >> On 11/22/2014 1:09 PM, Bernd Walter wrote: > >>> On Sat, Nov 22, 2014 at 12:46:34PM -0700, Dan Raymond wrote: > >>>> Further testing with the 16GB Kingston reveals that it is unstable even > >>>> at low speed. I hit the following panic while executing "portsnap fetch > >>>> update" on a r274416 build: > >>>> > >>>> dev = mmcsd0s2a, ino = 155101, fs = /mnt/ufs > >>>> panic: ffs_freefile: freeing free inode > >>>> KDB: enter: panic > >>>> [ thread pid 8 tid 100056 ] > >>>> Stopped at $d: ldrb r15, [r15, r15, ror r15]! > >>>> db> > >>> Maybe you've received a counterfeit. > >>> Unfortunately there are a lot of them on the market. > >>> Some of them are technically smaller than they claim and overwrite > >>> other data if they run short. > >> > >> I considered that originally which is why I bought 4 different cards of > >> different brands for testing (Transcend, SanDisk, Samsung, Kingston): > >> > >> http://www.amazon.com/gp/product/B00CBD0XSI/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1 > >> http://www.amazon.com/gp/product/B00M55C0NS/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1 > >> http://www.amazon.com/gp/product/B00IVPU7DQ/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1 > >> http://www.amazon.com/gp/product/B003WIRFD2/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1 > >> > >> None of them will boot FreeBSD at high speed and I have seen SD related > >> panics with 3 of them (so far) at low speed. Well high speed seems to be a different issue. But if it happens on multiple different cards, then the corruption is unlikely card related. > > I would actually dispute that this one is an sd-related panic, unless > > you have messages about gvfs_iodone failures on the console before the > > panic. Otherwise this is more likely another memory corruption problem > > similar to the panics being reported on wandboard. > > The RPi is also sensitive to power. I?ve seen weird corruption like this when I tried to run > my RPi off a battery and the battery was getting weak... They completely redesigned the power design in the B+, including the use of decent switching regulators. Assuming the problem happens on a B+ as the subject claims. -- B.Walter <bernd@bwct.de> http://www.bwct.de Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20141122213155.GB22446>