I was curious why sys_kcmp wasn't working, which led me to the testcase.
It turned out I hadn't enabled CHECKPOINT_RESTORE in the kernel I was
testing. Add a decoding of errno to the testcase to make that obvious.
Signed-off-by: Dave Jones <davej@redhat.com>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
/* This one should return same fd */
ret = sys_kcmp(pid1, pid2, KCMP_FILE, fd1, fd1);
if (ret) {
/* This one should return same fd */
ret = sys_kcmp(pid1, pid2, KCMP_FILE, fd1, fd1);
if (ret) {
- printf("FAIL: 0 expected but %d returned\n", ret);
+ printf("FAIL: 0 expected but %d returned (%s)\n",
+ ret, strerror(errno));
ret = -1;
} else
printf("PASS: 0 returned as expected\n");
ret = -1;
} else
printf("PASS: 0 returned as expected\n");
/* Compare with self */
ret = sys_kcmp(pid1, pid1, KCMP_VM, 0, 0);
if (ret) {
/* Compare with self */
ret = sys_kcmp(pid1, pid1, KCMP_VM, 0, 0);
if (ret) {
- printf("FAIL: 0 expected but %li returned\n", ret);
+ printf("FAIL: 0 expected but %li returned (%s)\n",
+ ret, strerror(errno));
ret = -1;
} else
printf("PASS: 0 returned as expected\n");
ret = -1;
} else
printf("PASS: 0 returned as expected\n");