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author | marcel <marcel@FreeBSD.org> | 2014-04-05 22:25:10 +0000 |
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committer | marcel <marcel@FreeBSD.org> | 2014-04-05 22:25:10 +0000 |
commit | 78021d485d243e09abae5cbcbe5d825dcdb6b0f3 (patch) | |
tree | f7906b3ce79fe51203b660931cd7c195b7ad27f7 /UPDATING | |
parent | d1d0c789012efc4677f6b17c22123297875113ff (diff) | |
download | FreeBSD-src-78021d485d243e09abae5cbcbe5d825dcdb6b0f3.zip FreeBSD-src-78021d485d243e09abae5cbcbe5d825dcdb6b0f3.tar.gz |
Do not prevent processes from making changes to the baudrate or the
CLOCAL and HUPCL control flags. There are legit reasons for allowing
those to be changed. When /etc/ttys has the "3wire" type (without a
baudrate) for the serial port that is the low-level console, then
this change has no effect.
Obtained from: Juniper Networks, Inc.
Diffstat (limited to 'UPDATING')
-rw-r--r-- | UPDATING | 14 |
1 files changed, 14 insertions, 0 deletions
@@ -31,6 +31,20 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 11.x IS SLOW: disable the most expensive debugging functionality run "ln -s 'abort:false,junk:false' /etc/malloc.conf".) +20140405: + The uart(4) driver has been changed with respect to its handling + of the low-level console. Previously the uart(4) driver prevented + any process from changing the baudrate or the CLOCAL and HUPCL + control flags. By removing the restrictions, operators can make + changes to the serial console port without having to reboot. + However, when getty(8) is started on the serial device that is + associated with the low-level console, a misconfigured terminal + line in /etc/ttys will now have a real impact. + Before upgrading the kernel, make sure that /etc/ttys has the + serial console device configured as 3wire without baudrate to + preserve teh previous behaviour. E.g: + ttyu0 "/usr/libexec/getty 3wire" vt100 on secure + 20140325: It is no longer necessary to include the dwarf version in your DEBUG options in your kernel config file. The bug that required it to be |