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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