Date: Fri, 12 Jun 2009 20:29:55 +0000 (UTC) From: Ed Schouten <ed@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/kern tty.c Message-ID: <200906122030.n5CKUH04038228@repoman.freebsd.org>
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ed 2009-06-12 20:29:55 UTC
FreeBSD src repository
Modified files:
sys/kern tty.c
Log:
SVN rev 194074 on 2009-06-12 20:29:55Z by ed
Prevent yet another staircase effect bug in the console device.
Even though I thought I fixed the staircase issue (and I was no longer
able to reproduce it), I got some reports of the issue still being
there. It turns out the staircase effect still occurred when
/dev/console was kept open while killing the getty on the same TTY
(ttyv0).
For some reason I can't figure out how the old TTY code dealt with that,
so I assume the issue has always been there. I only exposed it more by
merging consolectl with ttyv0, which means that the issue was present,
even on systems without a serial console.
I'm now marking the console device as being closed when closing the
regular TTY device node. This means that when the getty shuts down,
init(8) will open /dev/console, which means the termios attributes will
always be reset in this case.
Revision Changes Path
1.320 +7 -7 src/sys/kern/tty.c
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