1 files changed, 32 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/direct_io_1.f90 b/gcc/testsuite/gfortran.dg/direct_io_1.f90
new file mode 100644
index 000000000..96ae49035
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/direct_io_1.f90
@@ -0,0 +1,32 @@
+! { dg-do run }
+! PR 16908
+! Segfaulted on second set of writes.  We weren't handling partial records
+! properly when calculating the file position.
+program direct_io_1
+  implicit none
+
+  integer n, nt, mt, m
+  real dt, tm, w
+  real, allocatable :: p(:)
+
+  nt =  2049 ! if nt < 2049, then everything works.
+
+  allocate(p(nt))
+  p  = 0.e0
+
+  inquire(iolength=mt) (p(m), m=1, nt)
+
+  open(unit=12, file='syn.sax', access='direct', recl=mt)
+  n = 1
+  write(12, rec=n) mt, nt
+  write(12, rec=n+1) (p(m), m=1, nt)
+  close(12)
+
+  inquire(iolength=mt) (p(m), m=1, nt)
+
+  open(unit=12, file='syn.sax', access='direct', recl=mt)
+  n = 1
+  write(12, rec=n) mt, nt
+  write(12, rec=n+1) (p(m), m=1, nt)
+  close(12, status='delete')
+end program