Date: Fri, 14 Nov 2014 12:03:53 +0000 From: Andrew Turner <andrew@fubar.geek.nz> To: Ulrich Grey <usenet@ulrich-grey.de> Cc: freebsd-arm@freebsd.org, Rui Paulo <rpaulo@me.com> Subject: Re: Wandboard-Quad crashes Message-ID: <20141114120353.49988a3e@bender.lan> In-Reply-To: <20141114120521.06926bd12d6b2958c6f380dc@ulrich-grey.de> References: <20141113125236.b16cd4e5f0e339eac0494cd4@ulrich-grey.de> <C6FED1A5-490C-47BE-B071-484271ED370E@me.com> <20141114120521.06926bd12d6b2958c6f380dc@ulrich-grey.de>
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On Fri, 14 Nov 2014 12:05:21 +0100 Ulrich Grey <usenet@ulrich-grey.de> wrote: > On Thu, 13 Nov 2014 08:37:13 -0800 > Rui Paulo <rpaulo@me.com> wrote: > > > On Nov 13, 2014, at 03:52, Ulrich Grey <usenet@ulrich-grey.de> > > wrote: > > > > > > I am running FreeBSD on a Wandboard-Quad: > > > > > > FreeBSD 11.0-CURRENT #0 r274420M: Wed Nov 12 14:17:26 UTC 2014 > > > user@quad:/usr/local/DEVEL/obj/usr/local/DEVEL/SRC/head/sys/WANDBOARD-QUAD > > > arm FreeBSD clang version 3.4.1 (tags/RELEASE_34/dot1-final > > > 208032) 20140512 WARNING: WITNESS option enabled, expect reduced > > > performance. CPU: Cortex A9-r2 rev 10 (Cortex-A core) > > > Supported features: ARM_ISA THUMB2 JAZELLE THUMBEE ARMv4 > > > Security_Ext > > > > > > If I try to compile x11/libX11 the system frequently crashes: > > > > > > Fatal kernel mode data abort: 'Alignment Fault 1' > > > trapframe: 0xf72e0ae8 > > > FSR=00000001, FAR=000000a7, spsr=60000013 > > > r0 =00000004, r1 =00000000, r2 =c242b953, r3 =00000970 > > > r4 =c847fd80, r5 =c242b953, r6 =000000a7, r7 =c7df6810 > > > r8 =00000000, r9 =00000097, r10=00000970, r11=f72e0b68 > > > r12=000000c0, ssp=f72e0b38, slr=c220ebf4, pc =c214fbb4 > > > > > > [ thread pid 23015 tid 100147 ] > > > > > > Stopped at __mtx_lock_flags+0x50: ldr r0, [r6] > > > > > > What can I do? > > > > Can you send us the backtrace? > > > > -- > > Rui Paulo > > > -------------------------------------------------------- > > After some hours compiling, the Wandboard crashes again: This looks similar to the problem I have seen compiling ports on a Wandboard. It appears to be a bug in the pmap code but I never tracked it down, and in the end used the pmap implementation from Svatopluk Kraus and Michal Melound. Unfortunately I don't have the time to shepard this code into the tree at the moment. Andrew
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