@@ -44,7 +44,7 @@ fi
only_tests=""
list_tests=""
-args=$(getopt -u -o ag:htj:vl -l all,group:,help,tap13,parallel:,verbose,list -- $*)
+args=$(getopt -u -o ag:htj:vl -l all,group:,help,tap13,parallel:,verbose,list,probe-maxsmp -- $*)
[ $? -ne 0 ] && exit 2;
set -- $args;
while [ $# -gt 0 ]; do
@@ -78,6 +78,9 @@ while [ $# -gt 0 ]; do
-l | --list)
list_tests="yes"
;;
+ --probe-maxsmp)
+ probe_maxsmp
+ ;;
--)
;;
*)
@@ -200,12 +200,13 @@ function run()
#
# Probe for MAX_SMP, in case it's less than the number of host cpus.
#
-# This probing currently only works for ARM, as x86 bails on another
-# error first, so this check is only run for ARM and ARM64. The
-# parameter expansion takes the last number from the QEMU error
-# message, which gives the allowable MAX_SMP.
-if [[ $ARCH == 'arm' || $ARCH == 'arm64' ]] &&
- smp=$($RUNTIME_arch_run _NO_FILE_4Uhere_ -smp $MAX_SMP |& grep 'exceeds max CPUs'); then
- smp=${smp##*(}
- MAX_SMP=${smp:0:-1}
-fi
+function probe_maxsmp()
+{
+ local smp
+
+ if smp=$($RUNTIME_arch_run _NO_FILE_4Uhere_ -smp $MAX_SMP |& grep 'Invalid SMP CPUs'); then
+ smp=${smp##* }
+ echo "Restricting MAX_SMP from ($MAX_SMP) to the max supported ($smp)" >&2
+ MAX_SMP=$smp
+ fi
+}
Arm's MAX_SMP probing must have stopped working at some point due to QEMU's error message changing, but nobody noticed. Also, the probing should work for at least x86 now too, so the comment isn't correct anymore either. We could probably just delete this probe thing, but in case it could still serve some purpose we can also keep it, but updated for later QEMU, and only enabled when a new run_tests.sh command line option is provided. Signed-off-by: Andrew Jones <andrew.jones@linux.dev> --- run_tests.sh | 5 ++++- scripts/runtime.bash | 19 ++++++++++--------- 2 files changed, 14 insertions(+), 10 deletions(-)