Messages in this thread | | | Date | Wed, 18 Sep 2019 10:25:46 +0900 | From | Sergey Senozhatsky <> | Subject | Re: printk meeting at LPC |
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On (09/13/19 15:26), John Ogness wrote: > 2. A kernel thread will be created for each registered console, each > responsible for being the sole printers to their respective > consoles. With this, console printing is _fully_ decoupled from printk() > callers.
sysrq over serial?
What we currently have is hacky, but, as usual, is a "best effort":
>> serial driver IRQ
serial_handle_irq() [console driver] uart_handle_sysrq_char() handle_sysrq() printk() call_console_drivers() serial_write() [re-enter console driver]
offloading this to kthread may be unreliable.
-ss
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