On Wed, Oct 7, 2009 at 1:24 PM, Alex Schuster <wo...@wonkology.org> wrote: > Mark Knecht writes: > >> On Wed, Oct 7, 2009 at 12:48 PM, Neil Bothwick <n...@digimed.co.uk> wrote: >> > On Wed, 7 Oct 2009 18:39:45 +0200, Alex Schuster wrote: >> >> Others allow to kill processes, sync the filesystem, and such. The >> >> combination Alt-SysRq-R-E-I-S-U-B reboots a hanging PC without file >> >> system corruption. >> > >> > Usually! Sometimes a system can be locked up to badly that there's not >> > enough resources left to sync the filesystems. Most of the time though >> > Alt-SysRq-Reboot-Even-If-System-Utterly-Broken works. > > Right, I was a little too enthusiastic here. > >> I've seen you guys talk about this and I've never had to use it. > > Oh. I used it very often. > >> I'm curious about the actual key strokes. Is it >> >> Alt-SysRq and then REISUB >> >> or >> >> Alt-SysRq followed by Atl-R, Atl-E, etc.. ? > > It's Alt-SysRq-R, Alt-SysRq-E, and so on. With little pauses between, to > give the action some time to work. Like, wait a little with the U (Unmount) > after the S (Sync). Or after the E (kill all processes) in order to give the > processes some time to save data, so the I (kill -9 all processes) does not > interrupt this. > > Wonko > >
thanks Wonko!
