Passing through the 'chiral limit' in quenched QCD with Wilson fermions

We investigate the limit of vanishing quark mass in quenched lattice QCD wi th unimproved Wilson fermions at beta = 6.0. Exploiting the correlations of propagators at different time slices we extract pion masses extremely clos e to the 'chiral limit', despite the presence of 'exceptional configuration s'. With this at hand, the existence of quenched chiral logarithms can be d emonstrated, provided, finite size effects are small. With reference to the phase diagram proposed by Aoki [1] also the range kappa > kappa(c); is inv estigated. The width of a potential parity-flavor violating phase can, if a t all, hardly be resolved.