author: John Ogness <john.ogness@linutronix.de> 2021-03-19 14:57:31 +0100
committer: Minda Chen <minda.chen@starfivetech.com> 2023-11-06 19:24:37 +0800
commit: d485610e22d3db1cbd9c0391043a8fcfdbc3f945
parent: a7a8d5f575ac0a155729e9906ebe0235c593447a
Commit Summary:
Diffstat:
1 file changed, 5 insertions, 12 deletions
diff --git a/kernel/debug/kdb/kdb_io.c b/kernel/debug/kdb/kdb_io.c
index 6735ac36b718..539a2f0dc89d 100644
--- a/kernel/debug/kdb/kdb_io.c
+++ b/kernel/debug/kdb/kdb_io.c
@@ -559,23 +559,17 @@ static void kdb_msg_write(const char *msg, int msg_len)
cp++;
}
+ /* mirror output on atomic consoles */
for_each_console(c) {
if (!(c->flags & CON_ENABLED))
continue;
if (c == dbg_io_ops->cons)
continue;
- /*
- * Set oops_in_progress to encourage the console drivers to
- * disregard their internal spin locks: in the current calling
- * context the risk of deadlock is a bigger problem than risks
- * due to re-entering the console driver. We operate directly on
- * oops_in_progress rather than using bust_spinlocks() because
- * the calls bust_spinlocks() makes on exit are not appropriate
- * for this calling context.
- */
- ++oops_in_progress;
- c->write(c, msg, msg_len);
- --oops_in_progress;
+
+ if (!c->write_atomic)
+ continue;
+ c->write_atomic(c, msg, msg_len);
+
touch_nmi_watchdog();
}
}