{
   generic libunwind suppression
   Memcheck:Param
   msync(start)
   ...
   obj:*libunwind*
   ...
}
{
   generic libunwind suppression
   Memcheck:Param
   rt_sigprocmask(set)
   ...
   obj:*libunwind*
   ...
}
{
   generic libunwind suppression
   Memcheck:Addr8
   ...
   obj:*libunwind*
   ...
}
{
   libunwind exception suppresion
   Memcheck:Param
   write(buf)
   ...
   obj:*libunwind*
   ...
}
{
   libunwind calls glibc's setcontext on some architectures, e.g. ppc
   Memcheck:Addr8
   fun:setcontext*
   ...
}
