For current RHEL7 and RHEL8 kernel (3.10.0 and 4.18.0), we use "tracing_on" to control tracing disable/enable. The "tracing_enabled" is not the current value. For RHEL bug: https://bugzilla.redhat.com/show_bug.cgi?id=1731336 E.g: # # svsematest -a -b 20us -f -i 100 -l 100 -S ... Could not access /sys/kernel/debug/tracing/tracing_enabled Sanity test passed. No this error msg when patched. Signed-off-by: Qiao Zhao <qzhao@xxxxxxxxxx> --- src/pmqtest/pmqtest.c | 2 +- src/ptsematest/ptsematest.c | 2 +- src/sigwaittest/sigwaittest.c | 2 +- src/svsematest/svsematest.c | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/src/pmqtest/pmqtest.c b/src/pmqtest/pmqtest.c index 2191710..a04fc49 100644 --- a/src/pmqtest/pmqtest.c +++ b/src/pmqtest/pmqtest.c @@ -204,7 +204,7 @@ void *pmqthread(void *param) char tracing_enabled_file[MAX_PATH]; strcpy(tracing_enabled_file, get_debugfileprefix()); - strcat(tracing_enabled_file, "tracing_enabled"); + strcat(tracing_enabled_file, "tracing_on"); int tracing_enabled = open(tracing_enabled_file, O_WRONLY); if (tracing_enabled >= 0) { diff --git a/src/ptsematest/ptsematest.c b/src/ptsematest/ptsematest.c index e8a3177..5537592 100644 --- a/src/ptsematest/ptsematest.c +++ b/src/ptsematest/ptsematest.c @@ -131,7 +131,7 @@ void *semathread(void *param) char tracing_enabled_file[MAX_PATH]; strcpy(tracing_enabled_file, get_debugfileprefix()); - strcat(tracing_enabled_file, "tracing_enabled"); + strcat(tracing_enabled_file, "tracing_on"); int tracing_enabled = open(tracing_enabled_file, O_WRONLY); if (tracing_enabled >= 0) { diff --git a/src/sigwaittest/sigwaittest.c b/src/sigwaittest/sigwaittest.c index 4579f90..59f28a5 100644 --- a/src/sigwaittest/sigwaittest.c +++ b/src/sigwaittest/sigwaittest.c @@ -179,7 +179,7 @@ void *semathread(void *param) char tracing_enabled_file[MAX_PATH]; strcpy(tracing_enabled_file, get_debugfileprefix()); - strcat(tracing_enabled_file, "tracing_enabled"); + strcat(tracing_enabled_file, "tracing_on"); int tracing_enabled = open(tracing_enabled_file, O_WRONLY); if (tracing_enabled >= 0) { diff --git a/src/svsematest/svsematest.c b/src/svsematest/svsematest.c index 01083d1..8f88078 100644 --- a/src/svsematest/svsematest.c +++ b/src/svsematest/svsematest.c @@ -185,7 +185,7 @@ void *semathread(void *param) char tracing_enabled_file[MAX_PATH]; strcpy(tracing_enabled_file, get_debugfileprefix()); - strcat(tracing_enabled_file, "tracing_enabled"); + strcat(tracing_enabled_file, "tracing_on"); int tracing_enabled = open(tracing_enabled_file, O_WRONLY); if (tracing_enabled >= 0) { -- 2.20.1
