On Tue, Oct 13, 2020 at 4:24 PM David S. <dazo@xxxxxxxxxxxx> wrote: > > > Hi, > > I just spotted that there is a difference in the default log levels on > Fedora and RHEL-8 vs RHEL-7. > > Fedora/RHEL-8 uses: > > # cat /proc/sys/kernel/printk > 7 4 1 7 > > while RHEL-7 uses: > > # cat /proc/sys/kernel/printk > 2 4 1 7 > > I also see that this seems to have been changed in the the packaging > > > commit 4778b265ca87608cf8dcbcec31c0230555d98784 > Author: Justin M. Forbes <jforbes@xxxxxxxxxx> > Date: Tue Dec 13 16:26:04 2016 -0600 > > Linux v4.9-2682-ge7aa8c2 (missing secure boot as that is being > rebased to the new upstream tree > > This is quite a while ago, but my googlefoo wasn't strong enough to find > a reason why. > > I am not saying this necessarily it is wrong, it just makes the dmesg > contain more data. So I am primarily curious why Fedora and RHEL-8 has > this high debug level as the default. > > We're working on an OpenVPN Data Channel Offload kernel module where we > used this debug level to give more details for debugging .... so a > default debug level of 7 prints out a lot more details which normal > production environments do not really need. If this was a deliberate > change for a reason, we will reconsider how to enable debug logging > differently than using the printk debug levels. > Which kernel are you working with? Rawhide kernels by default are typically debug kernels and will behave much differently in this regard. Stable kernel releases are defaulting to 3 4 1 7 Justin _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx
