From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 9 May 2002 13:43:02 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 9 May 2002 13:43:01 -0400 Received: from mg01.austin.ibm.com ([192.35.232.18]:25749 "EHLO mg01.austin.ibm.com") by vger.kernel.org with ESMTP id ; Thu, 9 May 2002 13:43:01 -0400 Message-ID: <3CDAB443.7F5E3B27@us.ibm.com> Date: Thu, 09 May 2002 12:39:15 -0500 From: Andrew Theurer X-Mailer: Mozilla 4.76 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: vda@port.imtp.ilyichevsk.odessa.ua CC: linux-kernel@vger.kernel.org Subject: Re: kill task in TASK_UNINTERRUPTIBLE In-Reply-To: <20020508140124.79124.qmail@web12408.mail.yahoo.com> <87znzawpk9.fsf@ceramic.fifi.org> <3CD9B44F.4A023A70@mvista.com> <200205091111.g49BBQX25905@Port.imtp.ilyichevsk.odessa.ua> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Denis Vlasenko wrote: > > On 8 May 2002 21:27, george anzinger wrote: > > > > > Is there any way i can kill a task in > > > > > TASK_UNINTERRUPTIBLE state ? > > > > No. Everytime you see hung task in this state > > > > you see kernel bug. > > > > Somebody correct me if I am wrong. > > > > > > Except for processes accessing NFS files while the NFS server is down: > > > they will be stuck in TASK_UNINTERRUPTIBLE until the NFS server comes > > > back up again. > > > > A REALLY good argument for puting timeouts on your NSF mounts! Don't > > leave home without them. > > Timeouts may be a bad idea: imagine large (LARGE) database > which you don't want to repair due to lost data over NFS. > Better let it hang in NFS i/o even for hours while you are > repairing your network. I'm not sure using an NFS mount for a big important DB would be prudent in the first place. I dunno, maybe there are situations where it's unavoidable. I just really cringe when hearing about DB volumes over NFS. -Andrew