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busybox-syslog.default: When systemd is enabled don't use circular buffer 

Busybox syslog uses a shmmem circular buffer [1][2] when launch with -C option
when systemd (is enabled) takes the control of syslog messages and then forward
the messages to busybox syslog daemon, systemd journald don't usage of shmmem
circular buffer.

If -C is specified busybox-syslog never be able to read the forwarded
messages from systemd journald and don't wrote it to /var/log/messages.

This file is only installed when systemd is enabled [3].

[1] https://git.busybox.net/busybox/tree/sysklogd/syslogd.c?h=1_24_stable#n464
[2] https://git.busybox.net/busybox/tree/sysklogd/logread.c?h=1_24_stable#n82
[3] http://git.yoctoproject.org/cgit/cgit.cgi/poky/tree/meta/recipes-core/busybox/busybox.inc#n295

(From OE-Core rev: 07ea6b5fb1eae175e18ecdab3ca37304215cd428)

Signed-off-by: Aníbal Limón <anibal.limon@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Aníbal Limón 2016-07-27 17:40:39 -05:00 committed by Richard Purdie
parent b4ba36a9d7
commit 140f6c7308
1 changed files with 1 additions and 1 deletions
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meta/recipes-core/busybox/files/busybox-syslog.default
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@ -1,4 +1,4 @@
OPTIONS="-C"
#OPTIONS="-C"
# The above option means syslogd will log to 16K shm circular buffer.
# You could use `logread' to read it.