On Tue, 2009-05-12 at 12:43 +0100, James Courtier-Dutton wrote: > Hi, > > I have a system where "kill -9 pid" as root, is not working. > As a result, even the reboot command also does nothing. > > Does anyone know why this might happen?
If a program gets caught in uninterruptible sleep, it cannot be killed. I believe that this usually happens when the process is in kernel mode doing waiting on some I/O and killing it at that point would result in an inconsistency. Generally D-sleep shouldn't last long... > renice seems to work, in that reading the new priority shows that the > priority has changed. > > I can remotely connect to the system so it is functioning quite well > up to a point. > "sync" also just hangs. This should not happen. Perhaps some part of the kernel is deadlocked?! If you find out what's gone wrong, you should probably report a kernel bug. Is any part of the filesystem remote? James -- The Holy ettlz theholyet...@googlemail.com PGP key ID: 03F94B5D -----------------------------------------------------------------------
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