On Sun, 2014-05-25 at 05:12 -0400, Robert P. J. Day wrote: > On Sun, 25 May 2014, Robert P. J. Day wrote: > > > > > (while this is probably not technically a fedora rawhide issue, > > since i'm trying this on rawhide, i figure this would be the best > > place to ask about it.) > > > > i really should know how to do this, but i'm confused about what > > happens when i try to configure which "kernel" messages i generate > > actually go to the console. > > > > on my rawhide system, my current log level settings are: > > > > # cat /proc/sys/kernel/printk > > 8 4 1 7 > > # > > > > for which my long-time understanding is that the first value > > represents the value less than which messages of that loglevel will > > appear on the system console -- and a value of 8 means all of them. > > > > so having earlier set that first value manually with: > > > > # echo 8 > /proc/sys/kernel/printk > > > > i can now experiment by generating messages in userspace with > > variations like: > > > > # echo "<0> level 0" > /dev/kmsg > > # echo "<1> level 1" > /dev/kmsg > > # echo "<7> level 7" > /dev/kmsg > > > > and so on. now if i follow the contents of dmesg in real time with: > > > > $ dmesg -w > > > > i can indeed see all of these messages adding their brief contents to > > the dmesg buffer as i generate them. > > > > *however*, only messages with log level 0 are immediately dumped to > > all of the open xterm windows in my graphical session, which i equate > > with the system console. any messages with log levels 1 through 7 do > > *not* show up that way. > > never mind, i think i can see what's happening ... what gets printed > to the console is controlled by rsyslog which is loading the "imklog" > module, which i'm going to assume is what i would configure to change > what log level messages go to the console, yes? so i guess i better do > some reading up on rsyslog and, in particular, that module. > > does that sound about right? well, in a typical modern Fedora config, journald gets its shot before rsyslog, so it could also be interfering. check that out too. -- Adam Williamson Fedora QA Community Monkey IRC: adamw | Twitter: AdamW_Fedora | XMPP: adamw AT happyassassin . net http://www.happyassassin.net -- test mailing list test@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe: https://admin.fedoraproject.org/mailman/listinfo/test
