On Thursday, 27 December 2018 at 09:51, Mikhail Gavrilov wrote: > Hi folks. > Why I cannot read content of some debugfs files which are should be readable. > https://lists.freedesktop.org/archives/amd-gfx/2018-December/029918.html > > [mikhail@localhost ~]$ sudo bash > [sudo] password for mikhail: > [root@localhost mikhail]# cd /sys/kernel/debug/dri/0 > [root@localhost 0]# xxd -e amdgpu_gca_config > xxd: amdgpu_gca_config: Operation not permitted > [root@localhost 0]# getenforce > Enforcing > [root@localhost 0]# setenforce 0 > [root@localhost 0]# xxd -e amdgpu_gca_config > xxd: amdgpu_gca_config: Operation not permitted > [root@localhost 0]# Do you have SecureBoot enabled? Regards, Dominik -- Fedora https://getfedora.org | RPM Fusion http://rpmfusion.org There should be a science of discontent. People need hard times and oppression to develop psychic muscles. -- from "Collected Sayings of Muad'Dib" by the Princess Irulan _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx