kgdb: timeout if secondary CPUs ignore the roundup

[firefly-linux-kernel-4.4.55.git] / kernel / debug / kdb / kdb_debugger.c

diff --git a/kernel/debug/kdb/kdb_debugger.c b/kernel/debug/kdb/kdb_debugger.c
index 8859ca34dcfe0a58dbd530b8668d8d88760a3eb4..15e1a7af5dd033f130ef2b4ed96cf1e2809442f5 100644 (file)
--- a/kernel/debug/kdb/kdb_debugger.c
+++ b/kernel/debug/kdb/kdb_debugger.c
@@ -129,6 +129,10 @@ int kdb_stub(struct kgdb_state *ks)
                ks->pass_exception = 1;
                KDB_FLAG_SET(CATASTROPHIC);
        }
+       /* set CATASTROPHIC if the system contains unresponsive processors */
+       for_each_online_cpu(i)
+               if (!kgdb_info[i].enter_kgdb)
+                       KDB_FLAG_SET(CATASTROPHIC);
        if (KDB_STATE(SSBPT) && reason == KDB_REASON_SSTEP) {
                KDB_STATE_CLEAR(SSBPT);
                KDB_STATE_CLEAR(DOING_SS);