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Hi all,
Porting the kernel 2.4.1 to my MIPS
embedded board,
i encountered a TTY
problem.
When the printf is putted in a
large loop, such as a 100 times loop,
the kernel error message "Warning: null
TTY for (ff:ff) in tty_write" appears.
However, if just one or two printf are
used, everything is fine.
Does this problem concern with my
serial driver?
I wrote my serial driver based on
driver/char/serial.c.
Can someone give me a hint that where
should be checked over?
Thanks.
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