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-rw-r--r--gdb/thread-db.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/gdb/thread-db.c b/gdb/thread-db.c
index 70283d07963..956d0d813b7 100644
--- a/gdb/thread-db.c
+++ b/gdb/thread-db.c
@@ -697,10 +697,11 @@ check_event (int pid)
error ("Thread creation event doesn't match breakpoint.");
#endif
- if (in_thread_list (pid))
- error ("Spurious thread creation event.");
-
- attach_thread (pid, msg.th_p, &ti, 1);
+ /* We may already know about this thread, for instance when the
+ user has issued the `info threads' command before the SIGTRAP
+ for hitting the thread creation breakpoint was reported. */
+ if (! in_thread_list (pid))
+ attach_thread (pid, msg.th_p, &ti, 1);
return;
case TD_DEATH: