[Bug 204741] [patch] [feature-request] syslogd(8) should be able to protect itself from OOM killer

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Sun Nov 22 13:49:54 UTC 2015


            Bug ID: 204741
           Summary: [patch] [feature-request] syslogd(8) should be able to
                    protect itself from OOM killer
           Product: Base System
           Version: 10.2-STABLE
          Hardware: Any
                OS: Any
            Status: New
          Keywords: patch
          Severity: Affects Some People
          Priority: ---
         Component: bin
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: eugen at grosbein.net
          Keywords: patch

Created attachment 163419
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=163419&action=edit

If the system exhausts available memory and swap, it starts to kill processes
and report killed processes with syslog facility. syslogd(8) should not be
killed or else system administrator has not complete information about the
case. Practice shows that syslogd may be killed like any other process.

Let's teach syslogd to protect itself from OOM killer. The following patch
introduces new command line option "-O" and system administrator is allowed to
have a line in its /etc/rc.conf:


In this case, syslogd became protected.

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