Hi,
This patch temporarily disables broken test cases,
nanosleep01
nanosleep02
pselect01
pselect01_64
because the ways to calculate the syscall execution time looks like
invalid. For example, in pselect01 test case,
start = time(&t);
retval = pselect(0, &readfds, NULL, NULL, (struct timespec *)&tv,NULL);
end = time(&t);
/* Changed total_sec compare to an at least vs an exact compare */
if(((end - start) >= total_sec) && ((end - start) <= total_sec + 1))
tst_resm(TPASS,"Sleep time was correct");
else
tst_resm(TFAIL,"Sleep time was incorrect:%d != %d",total_sec,(end - start));
}
The CPU scheduler can suspend the execution of the program just after
time(), but before pselect(). As the result, (end - start) is not the
actual syscall execution time, which introduces a false test failure
here. The same problem exists in nanosleep01 and nanosleep02 as well,
/* Note down the current time */
gettimeofday(&otime, 0);
/*
* Call nanosleep() to suspend child process
* for specified time.
*/
TEST(nanosleep(&timereq, NULL));
/* time after child resumes execution */
gettimeofday(&ntime, 0);
Signed-off-by: CAI Qian <[email protected]>
--- runtest/syscalls.orig 2009-03-09 00:04:17.000000000 +0800
+++ runtest/syscalls 2009-03-09 00:15:49.000000000 +0800
@@ -622,8 +622,10 @@
munmap02 munmap02
munmap03 munmap03
-nanosleep01 nanosleep01
-nanosleep02 nanosleep02
+# The following test cases are broken by design with the syscall time
+# calculations.
+#nanosleep01 nanosleep01
+#nanosleep02 nanosleep02
nanosleep03 nanosleep03
nanosleep04 nanosleep04
@@ -699,8 +701,10 @@
profil01 profil01
-pselect01 pselect01
-pselect01_64 pselect01_64
+# The following test cases are broken by design with the syscall time
+# calculations.
+#pselect01 pselect01
+#pselect01_64 pselect01_64
ptrace01 ptrace01
ptrace02 ptrace02
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