[THIN] Re: Unable to kill hung process

Comments inline...

> -----Original Message-----
> From: thin-bounce@xxxxxxxxxxxxx 
> [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Timothy Mangan
> Sent: 12 March 2004 13:13
> To: thin@xxxxxxxxxxxxx
> Subject: [THIN] Re: Unable to kill hung process
> 
> Nah.  User mode goes into the kernel to actually do the kill 
> (for any of the suggested methods),

Accepted, else why else could it be done ;-)

> and permissions are 
> checked inside the kernel.  So the state of the target 
> process doesn't matter (it doesn't cooperate in its own 
> death),

Quite.

But if it were looping, or in a kernel wait state?

> so the problem had to be that inside the kernel there 
> was a corrupted table.  The only task that can't be killed by 
> the kernel is id=0, the "system idle" task.

In theory - no problems.

But say, for example, a thread is actually doing some real stuff, that
can't, nor shouldn't be interrupted - else if it did, the OS should be
unstable - you have to wait for that to complete.

Say the thread is (pretty much) always in that non-receptive state.

> -----Original Message-----
> From: thin-bounce@xxxxxxxxxxxxx 
> [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Braebaum, Neil
> Sent: Friday, March 12, 2004 8:01 AM
> To: thin@xxxxxxxxxxxxx
> Subject: [THIN] Re: Unable to kill hung process
> 
> Isn't there a possibility that simply the process isn't in a 
> state to receive a signal - and that the ring level of a user 
> Admin session, isn't sufficient to break in?
> 
> Neil
> 
> > -----Original Message-----
> > From: thin-bounce@xxxxxxxxxxxxx
> > [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Timothy Mangan
> > Sent: 12 March 2004 12:52
> > To: thin@xxxxxxxxxxxxx
> > Subject: [THIN] Re: Unable to kill hung process
> > 
> > If you couldn't kill it as admin, then the machine suffered a
> > kernel corruption and should be rebooted at earliest 
> > convenience (which is likely what you already did).  This is 
> > very unusual to happen, but once in a long while you see it happen.
> > 
> > tim

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