I compile a custom kernel (currently 6.4 rc1), and I have CONFIG_PROC_SYSCTL=y set in the configuration. I run a program that gathers entropy from the atmosphere and feeds it into the kernel entropy pool via the public kernel interface. When I start the program, I want to change the thresholds for entropy because there is no longer any shortage of entropy, so I want it to be kept full (4096). I do that using /usr/bin/echo 3967 > /proc/sys/kernel/random/write_wakeup_threshold I haven't checked in a while using cat /proc/sys/kernel/random/entropy_avail It used to hover around 4030 or so. But now the write_wakeup_threshold is 256, and the amount of entropy is 256, and no changes are possible. Have there been recent changes to the kernel random generation process? Has this been deprecated or restricted? _______________________________________________ kernel mailing list -- kernel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to kernel-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/kernel@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
