Date: Thu, 12 Sep 2002 16:31:15 +0930 From: Greg 'groggy' Lehey <grog@FreeBSD.org> To: Anthony Atkielski <anthony@atkielski.com> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: Stuck "mt status" command -- how do I kill it? Message-ID: <20020912070115.GF3181@wantadilla.lemis.com> In-Reply-To: <014d01c259c2$41992c00$0a00000a@atkielski.com> References: <014d01c259c2$41992c00$0a00000a@atkielski.com>
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On Wednesday, 11 September 2002 at 20:37:16 +0200, Anthony Atkielski wrote: > I gave a "mt status" command on a DAT drive that was still loading the tape. > For whatever reason--not sure if it was hardware or software--the command > hung, with the light flashing on the tape drive. Try as I might, I couldn't > get past this command, which I issued on the console. CTRL/C did no good. > I tried logging in as root from another terminal and killing the process for > the mt command with -9, but nothing happened. A ps command reported the > process as being in state D. I tried issuing the same command from another > terminal, and that hung too, but I was able to kill it just by disconnecting > (not an option on the console). I finally killed the calling shell on the > console, which logged it off. That didn't kill the process running mt, but > it did free the console. At that point I was out of ideas so I rebooted, > which made the problem go away. > > Was there any other option besides a reboot in this case? Possibly not. I'd guess that you've found a bug in the tape driver. A dump would have helped, but the output of 'ps la' for the mt process might have been enough. UNIX used to have a lot of these race conditions. Greg -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply or reply to the original recipients. For more information, see http://www.lemis.com/questions.html See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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