Re: killing a process
On Fri, 22 Aug 1997, Oliver Elphick wrote:
> In message <[🔎] 873eo25ehh.fsf@tiamat.datasync.com>, writes:
>
> According to Maurice J. Bach in "Design of the Unix Operating System": `The
> kernel checks for receipt of a signal when a process is about to return
> from kernel mode to user mode and when it enters or leaves the sleep state
> at a suitably low scheduling priority. The kernel handles signals only
> when a process returns from kernel mode to user mode. Thus, a signal does
> not have an instant effect on a process running in kernel mode.' (p. 201)
Oops, yeah this is a very likely cause of his problem, however I don't
think it's good kernel behaviour to have any kind of kernel call that can
never return in some cases. Everything should have a timeout of some
sorts, even if it is hours.
Jason
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