[LTP] [PATCH] Fix sporadic pselect01 failure

[Craig M. <cr...@gh...>]

Every once in a while, pselect01 fails with the following output:

FAIL  :  Sleep time was incorrect:5 != 6

This is because we expect our sleeps of slightly more than 5 seconds to
last at most 5 seconds (if we're uninterrupted, integer truncation will
mean this only comes up about 1% of the time).  To fix this, we should
instead expect our sleeps to last between 5 and 6 seconds, as in the
patch inlined below.

Signed-off-by: Craig Meier <cr...@gh...>

svn diff -r 101920:110032 testcases/kernel/syscalls/pselect/pselect01.c
Index: testcases/kernel/syscalls/pselect/pselect01.c
===================================================================
--- testcases/kernel/syscalls/pselect/pselect01.c       (revision
101920)
+++ testcases/kernel/syscalls/pselect/pselect01.c       (revision
110032)
@@ -128,7 +128,7 @@

   /* Changed total_sec compare to an at least vs an exact compare */

-  if(total_sec >= (end - start))
+  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));