The following commit has been merged into the core/rcu branch of tip: Commit-ID: 7831b391fbf86d19ae92e2984a9274b1d2b4eb06 Gitweb: https://git.kernel.org/tip/7831b391fbf86d19ae92e2984a9274b1d2b4eb06 Author: Paul E. McKenney <paulmck@xxxxxxxxxx> AuthorDate: Tue, 16 Feb 2021 15:32:23 -08:00 Committer: Paul E. McKenney <paulmck@xxxxxxxxxx> CommitterDate: Mon, 22 Mar 2021 08:29:16 -07:00 torture: Record jitter start/stop commands Distributed runs of rcutorture will need to start and stop jittering on the remote hosts, which means that the commands must be communicated to those hosts. The commit therefore causes kvm.sh to place these commands in new TORTURE_JITTER_START and TORTURE_JITTER_STOP environment variables to communicate them to the scripts that will set this up. In addition, this commit causes kvm-test-1-run.sh to append these commands to each generated qemu-cmd file, which allows any remotely executing script to extract the needed commands from this file. Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx> --- tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh | 2 +- tools/testing/selftests/rcutorture/bin/kvm.sh | 24 ++++--- 2 files changed, 16 insertions(+), 10 deletions(-) diff --git a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh index f3d2ded..a69f8ae 100755 --- a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh +++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh @@ -202,6 +202,8 @@ echo $QEMU $qemu_args -m $TORTURE_QEMU_MEM -kernel $KERNEL -append \"$qemu_appen echo "# TORTURE_SHUTDOWN_GRACE=$TORTURE_SHUTDOWN_GRACE" >> $resdir/qemu-cmd echo "# seconds=$seconds" >> $resdir/qemu-cmd echo "# TORTURE_KCONFIG_GDB_ARG=\"$TORTURE_KCONFIG_GDB_ARG\"" >> $resdir/qemu-cmd +echo "# TORTURE_JITTER_START=\"$TORTURE_JITTER_START\"" >> $resdir/qemu-cmd +echo "# TORTURE_JITTER_STOP=\"$TORTURE_JITTER_STOP\"" >> $resdir/qemu-cmd if test -n "$TORTURE_BUILDONLY" then diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh index d6973e4..efcbd12 100755 --- a/tools/testing/selftests/rcutorture/bin/kvm.sh +++ b/tools/testing/selftests/rcutorture/bin/kvm.sh @@ -35,6 +35,8 @@ TORTURE_KCONFIG_ARG="" TORTURE_KCONFIG_GDB_ARG="" TORTURE_BOOT_GDB_ARG="" TORTURE_QEMU_GDB_ARG="" +TORTURE_JITTER_START="" +TORTURE_JITTER_STOP="" TORTURE_KCONFIG_KASAN_ARG="" TORTURE_KCONFIG_KCSAN_ARG="" TORTURE_KMAKE_ARG="" @@ -443,6 +445,16 @@ function dump(first, pastlast, batchnum) print "echo ----Start batch " batchnum ": `date` | tee -a " rd "log"; print "needqemurun=" jn=1 + njitter = 0; + split(jitter, ja); + if (ja[1] == -1 && ncpus == 0) + njitter = 1; + else if (ja[1] == -1) + njitter = ncpus; + else + njitter = ja[1]; + print "TORTURE_JITTER_START=\". jitterstart.sh " njitter " " rd " " dur " " ja[2] " " ja[3] "\"; export TORTURE_JITTER_START"; + print "TORTURE_JITTER_STOP=\". jitterstop.sh " rd " \"; export TORTURE_JITTER_STOP" for (j = first; j < pastlast; j++) { cpusr[jn] = cpus[j]; if (cfrep[cf[j]] == "") { @@ -484,14 +496,6 @@ function dump(first, pastlast, batchnum) print "\tneedqemurun=1" print "fi" } - njitter = 0; - split(jitter, ja); - if (ja[1] == -1 && ncpus == 0) - njitter = 1; - else if (ja[1] == -1) - njitter = ncpus; - else - njitter = ja[1]; if (TORTURE_BUILDONLY && njitter != 0) { njitter = 0; print "echo Build-only run, so suppressing jitter | tee -a " rd "log" @@ -502,12 +506,12 @@ function dump(first, pastlast, batchnum) print "if test -n \"$needqemurun\"" print "then" print "\techo ---- Starting kernels. `date` | tee -a " rd "log"; - print "\t. jitterstart.sh " njitter " " rd " " dur " " ja[2] " " ja[3] + print "\t$TORTURE_JITTER_START"; print "\twhile ls $runfiles > /dev/null 2>&1" print "\tdo" print "\t\t:" print "\tdone" - print "\t. jitterstop.sh " rd + print "\t$TORTURE_JITTER_STOP"; print "\techo ---- All kernel runs complete. `date` | tee -a " rd "log"; print "else" print "\twait"
![]() |