Date: Thu, 12 Oct 2000 13:16:06 -0400 From: Alan Clegg <abc@bsdi.com> To: Micke Josefsson <mj@isy.liu.se> Cc: Daniel Bye <Daniel.Bye@uk.uu.net>, freebsd-questions@FreeBSD.ORG Subject: Re: How do I kill this 'unkillable' process? Message-ID: <20001012131606.L37507@diskfarm.firehouse.net> In-Reply-To: <XFMail.001012155857.mj@isy.liu.se>; from mj@isy.liu.se on Thu, Oct 12, 2000 at 03:58:57PM %2B0200 References: <FB7CAC781DB6D311BEE800805FE6FADA2F4C8F@camexch4.cam.uk.internal> <XFMail.001012155857.mj@isy.liu.se>
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Unless the network is lying to me again, Micke Josefsson said: > That was what I first tried, you now! But it doesn't budge. I recall McKusick > calling -9 a 'sure kill', but apparently not for me. The problem is that the program is not going to return to user-space (when the kill signal will be handled). You have just found out how to create an unkillable (without hardware intervention [perhaps applying CD to the serial line?]) process. Other ways to create processes like this are: 1) remove scsi drive (pull the cable/power) while disk is being accessed (application in IO wait). 2) have a tape drive fail during a 'rewind' operation. AlanC To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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