From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751405AbcEKBMz (ORCPT ); Tue, 10 May 2016 21:12:55 -0400 Received: from [66.155.3.69] ([66.155.3.69]:57084 "EHLO mx.ewheeler.net" rhost-flags-FAIL-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1751063AbcEKBMy (ORCPT ); Tue, 10 May 2016 21:12:54 -0400 Date: Tue, 10 May 2016 18:13:02 -0700 (PDT) From: Eric Wheeler X-X-Sender: lists@mx.ewheeler.net To: Jiri Kosina cc: Kent Overstreet , linux-bcache@vger.kernel.org, linux-kernel@vger.kernel.org, Maciej Piechotka Subject: Re: [PATCH] bcache: bch_writeback_thread() is not freezable In-Reply-To: Message-ID: References: User-Agent: Alpine 2.11 (LRH 23 2013-08-11) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2 May 2016, Jiri Kosina wrote: > On Tue, 19 Apr 2016, Jiri Kosina wrote: > > > From: Jiri Kosina > > > > bch_writeback_thread() is calling try_to_freeze(), but that's just an > > expensive no-op given the fact that the thread is not marked freezable. > > > > I/O helper kthreads, exactly such as the bcache writeback thread, actually > > shouldn't be freezable, because they are potentially necessary for > > finalizing the image write-out. > > > > Signed-off-by: Jiri Kosina > > Let's send a friendly ping on these three patches after two weeks... Maciej, Were you able to get a backtrace? -- Eric Wheeler > > -- > Jiri Kosina > SUSE Labs > > -- > To unsubscribe from this list: send the line "unsubscribe linux-bcache" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >