Date: Tue, 21 Jun 2016 17:13:50 -0600 From: Ian Lepore <ian@freebsd.org> To: Mark Millard <markmi@dsl-only.net>, freebsd-arm <freebsd-arm@freebsd.org>, FreeBSD Current <freebsd-current@freebsd.org> Cc: FreeBSD Toolchain <freebsd-toolchain@freebsd.org> Subject: Re: (beagleboneblack/urtwn) Kernel page fault with the following non-sleepable locks held [ssh on rpi2 comparison] Message-ID: <1466550830.34556.73.camel@freebsd.org> In-Reply-To: <C7EFF9F0-7BA3-4E95-9CCF-5805295F76B3@dsl-only.net> References: <C7EFF9F0-7BA3-4E95-9CCF-5805295F76B3@dsl-only.net>
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On Tue, 2016-06-21 at 15:30 -0700, Mark Millard wrote: > Ian Lepore ian at freebsd.org wrote on Tue Jun 21 17:55:28 UTC 2016 > : > > > On Tue, 2016-06-21 at 08:11 -0300, Otacílio wrote: > > > Em 21/06/2016 07:33, Keith White escreveu: > > > > In an earlier message Ian said that he thought he knew what the > > > > problem was... > > > > > > Here the problem occurs when using wifi. I do not have tested > > > wired > > > because I don't have a cable here. > > > > > > > > > []'s > > > > > > -Otacilio > > > > The wifi alignment fault should be fixed as of r302064. Sorry it > > took > > so long. > > > > -- Ian > > > > FYI: I've not had any -r301975 problems with WiFi on my rpi2. > > But I cross build for TARGET_ARCH=armv6 with: > > > XCFLAGS+= -march=armv7-a -mcpu=cortex-a7 > > XCXXFLAGS+= -march=armv7-a -mcpu=cortex-a7 > > (And similarly for self-hosted.) It may be that the -march and/or > -mcpu matter to the code generation and explain my lack of problems. > > The builds also have INVARIANTS and WITNESS off. > > === > Mark Millard > markmi at dsl-only.net INVARIANTS being on was one of the things required to trigger the alignment fault. -- Ian
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