Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 1/6] serial8250: Mark console as CON_ANYTIME | Date | Thu, 2 Dec 2010 13:08:18 -0800 |
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From: Peter Zijlstra <peterz@infradead.org>
While trying to debug a cpu-hotplug issue I noticed printk() stopped working once the cpu got marked offline, since the 8250 serial console doesn't have any per-cpu resources the CON_ANYTIME bit is the safe and documented way to make it work again.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> --- drivers/serial/8250.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c index 4d8e14b..09a5508 100644 --- a/drivers/serial/8250.c +++ b/drivers/serial/8250.c @@ -2872,7 +2872,7 @@ static struct console serial8250_console = { .device = uart_console_device, .setup = serial8250_console_setup, .early_setup = serial8250_console_early_setup, - .flags = CON_PRINTBUFFER, + .flags = CON_PRINTBUFFER | CON_ANYTIME, .index = -1, .data = &serial8250_reg, }; -- 1.7.1
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