Am 26.05.2014 20:50, schrieb Patrick Häcker: > I guess the value dirty_writeback_centisecs defaults to 500. Other values > defined via sysctl have their (suspected) default value, too, after boot and > only change to the desired value after restarting the service manually as > described. Thus, I guess that the sysctl service is not started correctly, > although I cannot explain why systemctl should state otherwise (active, > success) in this case.
I suspect that systemd-sysctl set's the value correctly during boot, but it is later reset by "some" other component. Could you try the following: (as root) mkdir /etc/systemd/system/systemd-sysctl.service.d/ echo -e "[Service]\nExecStartPost=/sbin/sysctl vm.dirty_writeback_centisecs" > /etc/systemd/system/systemd-sysctl.service.d/debug.conf Then reboot and check the journal. The ExecStartPost command will dump the sysctl value after it has been set by systemd-sysctl: journalctl -b | grep sysctl If that turns up the correct vm.dirty_writeback_centisecs value, you need to find the component which is responsible for changing it *after* systemd-sysctl.service has run. Cheers, Michael -- Why is it that all of the instruments seeking intelligent life in the universe are pointed away from Earth?
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