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Alex Badea vamposdecampos at gmail.comHi list,
I'm running layer23 apps on the Application Processor of the OpenMoko
GTA02, which is also an ARM. I noticed that some parts of code try to
access words in memory which are not naturally aligned.
[ The first symptom was "Err from socket: Bad address" given by
osmocon. This is because a bogus length header read from the L2 unix
socket was overflowing a static 4K buffer. The bogus length was due
to an unaligned uint16_t write in osmo_send_l1() -- for an
L1CTL_DATA_REQ I think. ]
The easy and inefficient workaround for this is to ask the kernel[1]
to fix up these accesses:
echo 3 > /proc/cpu/alignment
Cheers,
Alex
[1] http://lxr.linux.no/#linux+v3.7.1/Documentation/arm/mem_alignment