From owner-freebsd-current@FreeBSD.ORG Wed Sep 5 02:34:30 2007 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D8B6316A41A for ; Wed, 5 Sep 2007 02:34:30 +0000 (UTC) (envelope-from kip.macy@gmail.com) Received: from nf-out-0910.google.com (nf-out-0910.google.com [64.233.182.186]) by mx1.freebsd.org (Postfix) with ESMTP id 6D10113C461 for ; Wed, 5 Sep 2007 02:34:30 +0000 (UTC) (envelope-from kip.macy@gmail.com) Received: by nf-out-0910.google.com with SMTP id k4so1582472nfd for ; Tue, 04 Sep 2007 19:34:29 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=U+wtANiEl+G6Hz2fqGDDyl5b/e5HW9c0iYsTpqb999dszFjwHtrEIk69td/F6Em+mkUq0T7ecAkl1B57BtXzQby2FgBPYdmSQUQZNfhGfDFarGy+K7y5jDLIY1QiDndibV8Fjrzj+zAiFqkWsSLTd7AfPh2XByvsMF8jeM8CnQc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=czB4BQF4KMpuo2LNZh3BR3pAugug6hAhnBs++4m8hvDMJIIh4XLQ3YlXDGW75uJTahgaUu0N974h/EuwPhLJhCxp80MdlzIzeLxLYutccFGb4NL4Wr/255mwJk/GL3DPf7RKj1365wzJEKH1x3iYOleyzpXB0qcKMqZWTGvDKig= Received: by 10.78.180.16 with SMTP id c16mr4734242huf.1188959668822; Tue, 04 Sep 2007 19:34:28 -0700 (PDT) Received: by 10.78.162.18 with HTTP; Tue, 4 Sep 2007 19:34:28 -0700 (PDT) Message-ID: Date: Tue, 4 Sep 2007 19:34:28 -0700 From: "Kip Macy" To: "Kenneth Vestergaard Schmidt" In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: Cc: freebsd-current@freebsd.org Subject: Re: Unkillable and runaway processes X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Sep 2007 02:34:30 -0000 - re-compile the kernel with DDB - drop into DDB when the problem occurs ddb> ps ddb> show proc ddb> thread ddb> bt Send the backtrace to pjd. -Kip On 9/4/07, Kenneth Vestergaard Schmidt wrote: > Hello. > > Our ZFS testbed is experiencing some weird problems with rsync. We run a > nightly backup of about 1.6 TB data (that's how much is stored, not how > much is transferred), but after the initial sync I haven't been able to > get the machine through one full cycle. > > After many hours of rsyncing data from 50+ machines, suddenly one > rsync-process will hang, spinning on the CPU. > > It switches state between CPU0, CPU1, RUN and 'zfs:(&', but doesn't > really do anything. It can't be killed, and you can't reboot the machine > - it'll get past syncing disks, but won't shutdown or reboot. > > I can't do an 'ls' in the directory that rsync is running on - it'll > just hang, too. > > The machine is running current from August 29th. > > I could use some pointers on what to do - is there some way I can debug > this better, maybe give some better info? > > -- > Kenneth Schmidt > pil.dk > > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" >