Hi, * Nick Bowler <nbowler@xxxxxxxxxx> [240322 04:29]: > I bisected to this commit: > > commit 45a3a8ef81291b63a2b50a1a145857dd9fc05e89 > Author: Tony Lindgren <tony@xxxxxxxxxxx> > Date: Mon Nov 13 10:07:53 2023 +0200 > > serial: core: Revert checks for tx runtime PM state > > Reverting this commit on top of Linux 6.8 is sufficient to get the > system booting again. Thanks a lot for bisecting and reporting the issue. Can you please test if the following change to add back the check for !pm_runtime_active() is enough to fix the issue? Regards, Tony 8< ----------------------- diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -156,7 +156,7 @@ static void __uart_start(struct uart_state *state) * enabled, serial_port_runtime_resume() calls start_tx() again * after enabling the device. */ - if (pm_runtime_active(&port_dev->dev)) + if (!pm_runtime_enabled(&port_dev->dev) || pm_runtime_active(&port_dev->dev)) port->ops->start_tx(port); pm_runtime_mark_last_busy(&port_dev->dev); pm_runtime_put_autosuspend(&port_dev->dev); -- 2.44.0
