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SubjectRe: bug in kernel
I ran the little test program on my 2.4.26  Knoppix system, and got the 
following two results:

strace a.out < /dev/tty
...
read(0, NULL, 6) = 1
...

strace a.out < /dev/zero
...
read(0, 0, 6) = -1 EFAULT (Bad address)
...

The first case looks broken.

Pat
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