Messages in this thread | | | Date | Thu, 28 Sep 2017 14:18:23 +0200 | From | Peter Zijlstra <> | Subject | [PATCH 0/3] printk: Add force_early_printk boot param |
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Most all printk() bits are terminally broken because they rely on the scheduler and blocking locks to function, making them unsuitable for debugging the scheduler and NMI context things.
Luckily many early_printk implementations are relatively sane and don't rely on anything much at all; the x86 early_serial_console for example is pure bit-banging without anything.
So provide means to always use these and avoid the whole printk mess.
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