Subject: Re: 'kill -9' not always working...
To: Steven M. Bellovin <email@example.com>
From: Herb Peyerl <firstname.lastname@example.org>
Date: 01/01/2006 12:43:24
On Jan 1, 2006, at 9:10 AM, Steven M. Bellovin wrote:
> If, in the root window that's running pppd, I do ^Z and 'kill -9
> nothing happens. Not good, but not a big surprise; we've all seen
> drivers that wedge in the kernel.
> If, however, I do the 'kill -9' from a second window, it works. That
> suggests some problem about killing a stopped process, especially if
> it's slightly stuck on something todo with a device driver.
When you do the SIGTSTP and then the SIGKILL, do a ps -axwl and see
what wchan the process is stuck in. What happens if you type 'fg'
after you SIGKILL?