On Mon, May 16, 2011 at 14:27, Lennart Poettering <[email protected]> wrote: > On Mon, 16.05.11 13:44, Kay Sievers ([email protected]) wrote: > >> On Mon, May 16, 2011 at 13:39, Daniel Drake <[email protected]> wrote: >> > On 15 May 2011 15:16, Kay Sievers <[email protected]> wrote: >> >> Just a first quick check of an issue we ran into with ATA disks: >> >> what's in /proc/sys/kernel/hotplug before you shut down? Or what's >> >> CONFIG_UEVENT_HELPER in your kernel setup, it must be ="" on modern >> >> systems, otherwise the kernel will they to exec() binaries all the >> >> time and keep the system's rootfs busy. >> > >> > I'm also having trouble shutting down with systemd, and I have >> > CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" >> > So I'll try this solution. Thanks. >> > >> > Just a quick question: is the same also true for Fedora 14 >> > (upstart-1.2, udev-161)? i.e. can and should that config option be >> > cleared under that setup too? I guess so, given that /sbin/hotplug >> > doesn't even exist. >> >> Yeah, /sbin/hotplug is ancient history or (broken) embedded-like >> setups, it should always be disabled. In earlier udev/init setups we >> used to do: echo > /proc/sys/kernel/hotplug, but we don't do it in >> systemd setups, that's why it pops up now. > > I could add a taint check for this? Shall I?
Not sure, probably not. The next kernel will be fixed to disable all usermode_helper on shutdown: http://git.kernel.org/?p=linux/kernel/git/gregkh/driver-core-2.6.git;a=commit;h=b50fa7c8077c625919b1e0a75fc37b825f024518 I guess, we have no real business in checking kernel config for stuff that we don't depend on. if people want to use /sbin/hotplug, they should be able to do it. It will slow down things, but it will not cause any real problems after the kernel fix. Kay _______________________________________________ systemd-devel mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/systemd-devel
