Date: Sun, 30 Jul 1995 06:52:58 -0700 From: Bruce Evans <bde> To: CVS-commiters, cvs-sys Subject: cvs commit: src/sys/kern tty.c Message-ID: <199507301352.GAA08918@freefall.cdrom.com>
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bde 95/07/30 06:52:57 Modified: sys/kern tty.c Log: Don't swap the queue headers to implement concatenation of the queues for TIOCSETA[W]. Swapping an even number of times broke the queue resource limits. This would have broken CRTSCTS flow control if the clist slush list was used up. Don'concatenate the queues for TIOCSETA[W] if one of the queues has a resource limit of 0. Concatenation would cause a panic if one of the queues is nonempty and the other is limited to length 0. This may have caused panics in PPPDISC. Wake up readers after all transitions of ICANON. When ICANON is turned off it is quite likely that characters will become available to be read. Reduce indentation near these changes.
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