Bug 234988

Summary:	Architecture Handbook: Comparison of message vs signal is incorrect
Product:	Documentation	Reporter:	Ernest Bruce <ebruce>
Component:	Books & Articles	Assignee:	freebsd-doc (Nobody) <doc>
Status:	Open ---
Severity:	Affects Some People	CC:	ebruce
Priority:	---	Keywords:	easy, needs-patch
Version:	Latest
Hardware:	Any
OS:	Any

Description Ernest Bruce 2019-01-16 02:50:09 UTC

the last sentence of the first paragraph of 4.2.1. SysV IPC says:

  The difference between a message and a signal is that the
  message only consists of the signal number.

i think the corrected sentence could read:

  The difference between a message and a signal is that
  a message contains a message id and a message pointer,
  whereas a signal contains only a signal id.

https://www.freebsd.org/doc/en/books/arch-handbook/jail-restrictions.html