Make workspace larger in xbdsdc to avoid segfault when uplo='L'.

Author: andreasnoack

base/linalg/lapack.jl

@@ -2067,7 +2067,7 @@ for (bdsdc, elty) in
             validate(uplo)
             n, ldiq, ldq, ldu, ldvt = length(d), 1, 1, 1, 1
             if compq == 'N'
-                lwork = 4n
+                lwork = 6n
             elseif compq == 'P'
                 warn("COMPQ='P' is not tested")
                 #TODO turn this into an actual LAPACK call

test/linalg.jl

@@ -476,7 +476,7 @@ for elty in (Float32, Float64, Complex64, Complex128)
             #XXX If I run either of these tests separately, by themselves, things are OK.
             # Enabling BOTH tests results in segfault.
             # Where is the memory corruption???
-            #@test_approx_eq svdvals(full(T)) svdvals(T)
+            @test_approx_eq svdvals(full(T)) svdvals(T)
             u1, d1, v1 = svd(full(T))
             u2, d2, v2 = svd(T)
             @test_approx_eq d1 d2