Re: Strange Error in 2.0.33 w/ RH5.0

Theodore Y. Ts'o (tytso@MIT.EDU)
Wed, 18 Feb 1998 00:03:51 -0500


Date: Tue, 17 Feb 1998 15:45:28 -0600 (CST)
From: Tom Tom Tom <dumbkid@wt.net>

Warning: dev (02:01) tty->count(1) != #fd's(2) in tty_open
Warning: dev (03:01) tty->count(2) != #fd's(3) in tty_open
Warning: dev (03:01) tty->count(3) != #fd's(5) in tty_open
Warning: dev (03:01) tty->count(3) != #fd's(6) in release_dev

Are you using PPP or SLIP by any chance? Alexey Kuznetsov has recently
pointed out a race condition in the tty hangup processing which hits if
you are using PPP or SLIP line discplines. I'm currently considering
how to fix this....

Most of the time the messages seem to be harmless, and the kernel will
recover, but it is a problem.

- Ted

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