diff -up wrk/ode-initval2/msbdf.c.wrk wrk/ode-initval2/msbdf.c
--- wrk/ode-initval2/msbdf.c.wrk	2013-01-09 10:35:45.259960403 +0100
+++ wrk/ode-initval2/msbdf.c	2013-01-17 16:52:13.135771518 +0100
@@ -43,6 +43,8 @@
    framework.
 */
 
+#define PD(fl) printf("%lu\n", *((unsigned long *)&(fl)))
+
 #include <config.h>
 #include <stdlib.h>
 #include <string.h>
@@ -116,7 +118,6 @@ static void *
 msbdf_alloc (size_t dim)
 {
   msbdf_state_t *state = (msbdf_state_t *) malloc (sizeof (msbdf_state_t));
-
   if (state == 0)
     {
       GSL_ERROR_NULL ("failed to allocate space for msbdf_state", GSL_ENOMEM);
@@ -611,6 +612,15 @@ msbdf_calccoeffs (const size_t ord, cons
   printf ("errcoeff=%.5e\n", *errcoeff);
 #endif
 
+/*PD(l[0]);
+PD(l[1]);
+PD(*errcoeff);
+PD(*ordm1coeff);
+PD(*ordp1coeff);
+PD(*ordp2coeff);
+PD(*gamma);
+printf("\n");
+*/
   return GSL_SUCCESS;
 }
 
@@ -1082,7 +1092,7 @@ msbdf_apply (void *vstate, size_t dim, d
              const gsl_odeiv2_system * sys)
 {
   /* Carries out a step by BDF linear multistep methods. */
-
+PD(h);
   msbdf_state_t *state = (msbdf_state_t *) vstate;
 
   double *const z = state->z;
@@ -1466,7 +1476,10 @@ msbdf_apply (void *vstate, size_t dim, d
   /* Calculate polynomial coefficients (l), error coefficient and
      auxiliary coefficients
    */
-
+/*printf("%d\n", ord);
+printf("%lu\n", state->ordwait);
+PD(h);
+PD(hprev[0]);*/
   msbdf_calccoeffs (ord, state->ordwait, h, hprev, l, &errcoeff,
                     &ordm1coeff, &ordp1coeff, &ordp2coeff, &gamma);
 
diff -up wrk/ode-initval2/test.c.wrk wrk/ode-initval2/test.c
--- wrk/ode-initval2/test.c.wrk	2013-01-09 10:48:22.051415928 +0100
+++ wrk/ode-initval2/test.c	2013-01-17 15:18:46.759826995 +0100
@@ -923,6 +923,18 @@ rhs_ringmod (double t, const double y[],
   f[13] = (-y[0] + uin1 - (ri + rg1) * y[13]) / ls1;
   f[14] = (-y[1] - (rc + rg1) * y[14]) / ls1;
 
+  /*int i;
+  printf("temp states\n");
+  for (i=0; i<15; ++i) {
+  
+	  printf("%lu\n", *((unsigned long *)(&(y[i]))));
+  }
+
+	  printf("%lu\n", *((unsigned long *)(&(rg2))));
+	  printf("%lu\n", *((unsigned long *)(&(ls2))));
+	  printf("%lu\n", *((unsigned long *)(&(rg3))));
+	  printf("%lu\n", *((unsigned long *)(&(ls3))));
+*/
   return GSL_SUCCESS;
 }
 
@@ -1264,10 +1276,19 @@ sys_driver (const gsl_odeiv2_step_type *
   nfe = 0;
   nje = 0;
   
+  int poc=0;
   while (t < t1)
     {
       s = gsl_odeiv2_evolve_apply (d->e, d->c, d->s, sys, &t, t1, &h, y);
 
+      printf("\nkrok %d\n", ++poc);
+/*      int k;
+      for (k=0; k<15; ++k) {
+	printf(" %lu\n",(*(unsigned long int *)(&(y[k]))));
+      }
+      printf(" %lu\n",(*(unsigned long int *)(&t)));
+*/
+      //printf("\n");
 #ifdef DEBUG
       printf ("%.5e %.5e %.5e %d\n", t, y[0], y[1],
               gsl_odeiv2_step_order (d->s));
@@ -1959,7 +1980,7 @@ test_extreme_problems (void)
 
   /* Loop over problems */
 
-  for (p = 0; p < CONST_EXTREME_NPROB; p++)
+  for (p = 2; p < CONST_EXTREME_NPROB; p++)
     {
       /* Initialize */
 
@@ -2001,12 +2022,13 @@ test_extreme_problems (void)
 
       /* Call each solver for the problem */
 
-      for (i = 0; steppers[i] != 0; i++)
+      for (i = 1; steppers[i] != 0; i++)
         {
+	  printf("spustam driver p=%ld i=%ld\n", p, i);
           int s = sys_driver (steppers[i], prob[p], start[p], end[p],
                               initstepsize[p], &y[sd[p] * i],
                               epsabs[p], epsrel[p], probname[p]);
-
+	  printf("koniec drivera\n");
           if (s != GSL_SUCCESS)
             {
               printf ("start=%.5e, initstepsize=%.5e\n", start[p],
@@ -2450,7 +2472,7 @@ main (void)
 
   /* Basic tests for all steppers */
 
-  for (i = 0; p[i].type != 0; i++)
+  /*for (i = 0; p[i].type != 0; i++)
     {
       test_stepper (p[i].type);
     }
@@ -2469,9 +2491,9 @@ main (void)
       test_stepsize_fail (p[i].type, p[i].h);
       test_user_break (p[i].type, p[i].h);
     }
-
+*/
   /* Derivative test for explicit steppers */
-
+/*
   explicit_stepper[0].type = gsl_odeiv2_step_rk4;
   explicit_stepper[0].h = 1.0e-3;
   explicit_stepper[1].type = gsl_odeiv2_step_rk2;
@@ -2491,16 +2513,16 @@ main (void)
       test_stepfn (explicit_stepper[i].type);
       test_stepfn2 (explicit_stepper[i].type);
     }
-
+*/
   /* Special tests */
   
-  test_nonstiff_problems ();
+ // test_nonstiff_problems ();
 
-  test_stiff_problems ();
+ // test_stiff_problems ();
 
   test_extreme_problems ();
 
-  test_driver ();
+  //test_driver ();
   
   exit (gsl_test_summary ());
 }