Description of problem: I was looking at dmesg just after boot and saw the message below. Version-Release number of selected component (if applicable): 4.12.0-0.rc3.git0.2.fc27.x86_64 How reproducible: always Steps to Reproduce: 1.after reboot issue dmesg | less 2. 3. Actual results: see below Expected results: no message Additional info: [ 0.000000] ********************************************************** [ 0.000000] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 0.000000] ** ** [ 0.000000] ** trace_printk() being used. Allocating extra memory. ** [ 0.000000] ** ** [ 0.000000] ** This means that this is a DEBUG kernel and it is ** [ 0.000000] ** unsafe for production use. ** [ 0.000000] ** ** [ 0.000000] ** If you see this message and you are not debugging ** [ 0.000000] ** the kernel, report this immediately to your vendor! ** [ 0.000000] ** ** [ 0.000000] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 0.000000] **********************************************************
Same problem with kernel 4.12.0-1.fc27.x86_64.
Also seen in kernel-4.12.4-300.fc26.x86_64, the current F26 updates-testing kernel.
Also seen in kernel-4.12.4-300.fc26.x86_64, the current F26 NON testing kernel
Rawhide kernels are supposed to have debug options enabled most of the time. Stable kernel, not so much.
Debug options are not turned on actually via the config, but a driver is calling trace_printk which is what causes this. The solution is to turn off that driver. Despite the scary warning, these are not full debug kernels.
Hi, The message isn't all that scary... The kernel's name doesn't have "debug" in it so the assumption is that it's not a debug kernel. I saw the msgs and wrote this bug for that reason... in an attempt to be helpful. George...
This message is a reminder that Fedora 26 is nearing its end of life. Approximately 4 (four) weeks from now Fedora will stop maintaining and issuing updates for Fedora 26. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as EOL if it remains open with a Fedora 'version' of '26'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version. Thank you for reporting this issue and we are sorry that we were not able to fix it before Fedora 26 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora, you are encouraged change the 'version' to a later Fedora version prior this bug is closed as described in the policy above. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete.
Fedora 26 changed to end-of-life (EOL) status on 2018-05-29. Fedora 26 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.