From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sebastian Herbszt Subject: Re: NMI watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [kworker/1:1:29] Date: Sun, 3 Jan 2016 19:03:41 +0100 Message-ID: <20160103190341.0000387b@localhost> References: <20151217222737.00000ab6@localhost> <20151231180415.00000bfc@localhost> <20160103114628.GA10582@lst.de> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from mout.gmx.net ([212.227.15.15]:63994 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752092AbcACSDt (ORCPT ); Sun, 3 Jan 2016 13:03:49 -0500 In-Reply-To: <20160103114628.GA10582@lst.de> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Christoph Hellwig Cc: linux-scsi@vger.kernel.org, Bart Van Assche , Sebastian Herbszt Christoph Hellwig wrote: > On Thu, Dec 31, 2015 at 06:04:15PM +0100, Sebastian Herbszt wrote: > > I still get this on 4.4.0-rc7-1.g276c9f4-default. Since this did not > > happen on 4.3 I checked the scsi changes and found the following commit: > > > > scsi: restart list search after unlock in scsi_remove_target > > > > Christoph, can it cause this issue? > > Apparently yes. Bad hard a patch to avoid this when he resubmitted > my patch, which for some reason didn't get apply. Can you grab it > from the list archives and give it a try? Do you mean the following patch? "[PATCH v2] Separate target visibility from reaped state information" [1] I can give it a try but it will likely take a few days. [1] http://marc.info/?l=linux-scsi&m=144771953020415&w=2 Sebastian