svn commit: r341337 - head/share/man/man4

Edward Tomasz Napierala trasz at FreeBSD.org
Fri Nov 30 11:42:20 UTC 2018


Author: trasz
Date: Fri Nov 30 11:42:19 2018
New Revision: 341337
URL: https://svnweb.freebsd.org/changeset/base/341337

Log:
  Remove the hint for ISA buses; we don't support them anymore.
  
  MFC after:	2 weeks
  Sponsored by:	DARPA, AFRL

Modified:
  head/share/man/man4/ddb.4

Modified: head/share/man/man4/ddb.4
==============================================================================
--- head/share/man/man4/ddb.4	Fri Nov 30 11:19:04 2018	(r341336)
+++ head/share/man/man4/ddb.4	Fri Nov 30 11:42:19 2018	(r341337)
@@ -60,7 +60,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd November 10, 2018
+.Dd November 30, 2018
 .Dt DDB 4
 .Os
 .Sh NAME
@@ -1491,17 +1491,8 @@ might be defined to have special handling, and
 might be defined to simply panic and reboot.
 .El
 .Sh HINTS
-On machines with an ISA expansion bus, a simple NMI generation card can be
-constructed by connecting a push button between the A01 and B01 (CHCHK# and
-GND) card fingers.
-Momentarily shorting these two fingers together may cause the bridge chipset to
-generate an NMI, which causes the kernel to pass control to
-.Nm .
-Some bridge chipsets do not generate a NMI on CHCHK#, so your mileage may vary.
 The NMI allows one to break into the debugger on a wedged machine to
 diagnose problems.
-Other bus' bridge chipsets may be able to generate NMI using bus specific
-methods.
 There are many PCI and PCIe add-in cards which can generate NMI for
 debugging.
 Modern server systems typically use IPMI to generate signals to enter the


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