From e2bf3b802a667c9b88d02143a2e9da4c5182a4c7 Mon Sep 17 00:00:00 2001 From: Gilles Peskine Date: Tue, 17 Oct 2017 19:39:04 +0200 Subject: [PATCH] Timing self test: increased tolerance mbedtls_timing_self_test fails annoyingly often when running on a busy machine such as can be expected of a continous integration system. Increase the tolerances in the delay test, to reduce the chance of failures that are only due to missing a deadline on a busy machine. --- library/timing.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/library/timing.c b/library/timing.c index 77e0147471..93e1826d9c 100644 --- a/library/timing.c +++ b/library/timing.c @@ -445,19 +445,19 @@ int mbedtls_timing_self_test( int verbose ) { mbedtls_timing_set_delay( &ctx, a, a + b ); - busy_msleep( a - a / 8 ); + busy_msleep( a - a / 4 ); if( mbedtls_timing_get_delay( &ctx ) != 0 ) FAIL; - busy_msleep( a / 4 ); + busy_msleep( a / 2 ); if( mbedtls_timing_get_delay( &ctx ) != 1 ) FAIL; - busy_msleep( b - a / 8 - b / 8 ); + busy_msleep( b - a / 4 - b / 4 ); if( mbedtls_timing_get_delay( &ctx ) != 1 ) FAIL; - busy_msleep( b / 4 ); + busy_msleep( b / 2 ); if( mbedtls_timing_get_delay( &ctx ) != 2 ) FAIL; }