I don't like kernel debugging in Solaris. Look at the following example:

> Spe_HQ::print
{
    sc_rwlock = {
        _opaque = [ 0 ]
    }
    sc_policies = 0xffffff01ee346880
}
> Spe_HQ.sc_policies::print
mdb: failed to dereference symbol: unknown symbol name

First of all, ::print is cumbersome. And to get at what I want to see:

> Spe_HQ::print struct spe_control sc_policies | ::print struct spe_policy
{
    sp_id = 0
    sp_stripe_count = 0
    sp_interlace = 0
    sp_attr_expr = 0
    sp_name = 0
    sp_guuids = [ 0, 0, 0, 0, 0, 0, 0, 0 ]
    next = 0
}