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-rw-r--r--runtime/task_finder.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/runtime/task_finder.c b/runtime/task_finder.c
index db7a8f38..25fad1a4 100644
--- a/runtime/task_finder.c
+++ b/runtime/task_finder.c
@@ -825,7 +825,10 @@ __stp_utrace_task_finder_target_quiesce(enum utrace_resume_action action,
}
}
- if (tgt->vm_callback != NULL) {
+ /* If this is just a thread other than the thread group leader,
+ don't bother inform vm_callback clients about its memory map,
+ since they will simply duplicate each other. */
+ if (tgt->vm_callback != NULL && (tsk->tgid == tsk->pid)) {
struct mm_struct *mm;
char *mmpath_buf;
char *mmpath;