[Dovecot] unkillable imap process(es) with high CPU-usage

Edgar Fuß ef at math.uni-bonn.de
Fri Dec 12 00:08:25 EET 2008


> If you can't kill a process with -9, the bug is in the kernel and
> there's nothing Dovecot can do about it. User spaces processes can't
> create unkillable processes unless something's broken.
It just means the process is doing an uninterruptable sleep (in BSD notation, a tsleep() without PCATCH set). This may be an I/O operation, resource shortage etc. and needn't be a kernel bug.



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