svn commit: r362700 - head/share/man/man4
Michael Gmelin
grembo at FreeBSD.org
Sat Jun 27 16:31:05 UTC 2020
Author: grembo (ports committer)
Date: Sat Jun 27 16:31:04 2020
New Revision: 362700
URL: https://svnweb.freebsd.org/changeset/base/362700
Log:
Document new kern.tty_info_kstacks tunable.
Reviewed by: manpages (imp), 0mp
Differential Revision: https://reviews.freebsd.org/D25488
Modified:
head/share/man/man4/termios.4
Modified: head/share/man/man4/termios.4
==============================================================================
--- head/share/man/man4/termios.4 Sat Jun 27 15:50:35 2020 (r362699)
+++ head/share/man/man4/termios.4 Sat Jun 27 16:31:04 2020 (r362700)
@@ -28,7 +28,7 @@
.\" @(#)termios.4 8.4 (Berkeley) 4/19/94
.\" $FreeBSD$
.\"
-.Dd December 26, 2009
+.Dd June 27, 2020
.Dt TERMIOS 4
.Os
.Sh NAME
@@ -761,6 +761,13 @@ command in the foreground, its process ID, the symboli
wait channel, the number of user and system seconds used,
the percentage of cpu the process is getting, and the resident
set size of the process.
+.Pp
+In case the
+.Xr sysctl 8
+variable
+.Va kern.tty_info_kstacks
+is set to a non-zero value, the running thread's stack is
+written to the terminal (e.g., for debugging purposes).
.El
.Pp
The
@@ -1586,4 +1593,5 @@ the values in the header
.Xr tcsendbreak 3 ,
.Xr tcsetattr 3 ,
.Xr tcsetsid 3 ,
-.Xr tty 4
+.Xr tty 4 ,
+.Xr stack 9
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