You'll see these on some applications.  Add these to /etc/sysctl.conf
and run sysctl -f /etc/sysctl.conf or switch to single user mode and 
back.

machdep.unaligned_print=1
machdep.unaligned_fix=1
machdep.unaligned_sigbus=0

> pid 507 (mysqld): unaligned access: va=0x12053fda3 pc=0x12035c6d0
> ra=0x12035c7f8 sp=0x1fffff450 op=ldl
>
> [...]
>
> a lot more of them