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-rw-r--r--sys/src/cmd/gs/src/zcontext.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/src/cmd/gs/src/zcontext.c b/sys/src/cmd/gs/src/zcontext.c
index 6919f288c..c1ca1526f 100644
--- a/sys/src/cmd/gs/src/zcontext.c
+++ b/sys/src/cmd/gs/src/zcontext.c
@@ -953,6 +953,7 @@ zlock(i_ctx_t *i_ctx_p)
return_error(e_VMerror);
plock->holder_index = 0;
plock->waiting.head_index = plock->waiting.tail_index = 0;
+ plock->scheduler = NULL;
push(1);
make_istruct(op, a_all, plock);
return 0;