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-rw-r--r--erts/emulator/beam/erl_process.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c
index 11a1ce625b..6b5b64993f 100644
--- a/erts/emulator/beam/erl_process.c
+++ b/erts/emulator/beam/erl_process.c
@@ -8531,8 +8531,9 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int normal
p->flags |= have_blckd_flg;
goto wait_until_msb;
}
- else if (msbp->blckrs) {
- ASSERT(msbp->ongoing);
+ else if (msbp->blckrs || (normal && erts_no_schedulers == 1)) {
+ ASSERT(!msbp->blckrs || msbp->ongoing);
+ msbp->ongoing = 1;
plp = proclist_create(p);
erts_proclist_store_last(&msbp->blckrs, plp);
p->flags |= have_blckd_flg;
@@ -8546,7 +8547,7 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int normal
else
res = ERTS_SCHDLR_SSPND_DONE_NMSCHED_BLOCKED;
}
- else {
+ else {
int online = (int) schdlr_sspnd_get_nscheds(&schdlr_sspnd.online,
ERTS_SCHED_NORMAL);
ASSERT(!msbp->ongoing);