On Mon, 23 Nov 2020 13:13:59 +0000 Xu Qiang <[email protected]> wrote:
> when hardlockup_all_cpu_backtrace is on, and there are > a large number of cores in the system, it takes > a long time to output the hard deadlock logs of all cores > to the serial port. When the console_flush_on_panic function > in panic is executed, console_locked is still held. > As a result, garbled characters are displayed in the serial port log. > > To solve this problem, wait for a maximum of 10s for the serial port > to be released before console_flush_on_panic. Wouldn't it be better to wait until all the printing of all those backtraces has completed?
