Thats right. If the low level console driver is broken it will call
printk which could be using the broken driver :-(
> I only see this on one of my laptops, and even there it seems to be
> timing-dependent or something (I think it only happens when I press a key,
> and because the backtrace isn't trustworthy ..)
If it happens only when you press a key which is always true:
1) Its the same place on the screen or a different place every time?
2) Always the last line of the screen?
3) Always the last column?
If you don't mind me asking what is model of your laptop to see if someone
else is having the same exact problem.
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