Wandboard-Quad crashes

[Ulrich Grey]

On Thu, 13 Nov 2014 08:37:13 -0800
Rui Paulo <rpaulo at me.com> wrote:

> On Nov 13, 2014, at 03:52, Ulrich Grey <usenet at 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 at 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?
> 
----------------------
Now I have a coredump:

root at quad:/usr/obj/usr/local/DEVEL/SRC/head/sys/WANDBOARD-QUAD # kgdb
kernel.debug /var/crash/vmcore.0 


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This GDB was configured as "armv6-marcel-freebsd"...Dwarf Error: wrong
version in compilation unit header (is 0, should be 2) [in
module /usr/local/DEVEL/obj/usr/local/DEVEL/SRC/head/sys/WANDBOARD-QUAD/kernel.debug]

No symbol table is loaded.  Use the "file" command.

No symbol table is loaded.  Use the "file" command.

No symbol table is loaded.  Use the "file" command.

#0  0x00000000 in ?? ()

(kgdb)

#0  0x00000000 in ?? ()

Cannot access memory at address 0x0

(kgdb) list

No symbol table is loaded.  Use the "file" command.

(kgdb) file

No executable file now.

No symbol file now.

(kgdb) 

(kgdb) file kernel.symbols

Reading symbols from kernel.symbols...Dwarf Error: wrong version in
compilation unit header (is 0, should be 2) [in
module /usr/local/DEVEL/obj/usr/local/DEVEL/SRC/head/sys/WANDBOARD-QUAD/kernel.symbols]

(kgdb) Quit

(kgdb) quit

root at quad:/usr/obj/usr/local/DEVEL/SRC/head/sys/WANDBOARD-QUAD #
^Dexit

What is wrong?