From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 02243C433F5 for ; Mon, 4 Oct 2021 10:08:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D8D1F6126A for ; Mon, 4 Oct 2021 10:08:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231381AbhJDKKX (ORCPT ); Mon, 4 Oct 2021 06:10:23 -0400 Received: from smtp-out1.suse.de ([195.135.220.28]:53468 "EHLO smtp-out1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229825AbhJDKKU (ORCPT ); Mon, 4 Oct 2021 06:10:20 -0400 Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 42CF722231; Mon, 4 Oct 2021 10:08:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1633342111; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=0TxQkd6vV7r/WB28zs7RTMNtmDg/cjijQ4Z/1i1OoHw=; b=bAMSTs2oVZTU2Cy80VQTXiz32FrS6Q60ONXvX3/GYxts1uUCAYgs0uuOQi/R2oZWsasCB7 xCo2e6vca8KuscZU7fG2eaE+K999uxShM15E3BjZZk/RF8eVzplgtbZ6fTqsZydtDXOSsy bCkWStbqnq8Lt4EkywHJEbSFRb7m0Nw= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1633342111; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=0TxQkd6vV7r/WB28zs7RTMNtmDg/cjijQ4Z/1i1OoHw=; b=ehfXWAvfmIVKQeDmjI3i2f6QVuU/wc2Al6tUZIFICZbAWLlkjfA+4WCzq/lj7N09x96qUk fKhaHqyvUiYNi1DA== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id D149113A13; Mon, 4 Oct 2021 10:08:30 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id v6qIL57SWmG4UwAAMHmgww (envelope-from ); Mon, 04 Oct 2021 10:08:30 +0000 Received: from localhost (brahms [local]) by brahms (OpenSMTPD) with ESMTPA id 84ec3842; Mon, 4 Oct 2021 10:08:29 +0000 (UTC) Date: Mon, 4 Oct 2021 11:08:29 +0100 From: Luis Henriques To: Jens Axboe Cc: Theodore Ts'o , fstests@vger.kernel.org, fio@vger.kernel.org Subject: Re: generic/095 failing in ext4 and xfs Message-ID: References: <882f4c20-2e21-219b-0ca3-7e215e2d7cfa@kernel.dk> <86ee93vijj.fsf@orpheus.olymp> <6f867fa0-c3e9-6f65-d97f-4779c029ef81@kernel.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <6f867fa0-c3e9-6f65-d97f-4779c029ef81@kernel.dk> Precedence: bulk List-ID: X-Mailing-List: fstests@vger.kernel.org On Sat, Oct 02, 2021 at 08:59:57AM -0600, Jens Axboe wrote: > On 10/2/21 4:16 AM, Luis Henriques wrote: > > "Theodore Ts'o" writes: > > > >> On Fri, Oct 01, 2021 at 02:46:09PM -0600, Jens Axboe wrote: > >>> > >>> Hmm, do older versions fail? I see Ted suggested that 3.27 doesn't, can > >>> you give that a go? If that does work, would be great if you could try > >>> and bisect it. > >> > >> I just tried fio 3.28, and it worked for me. So I don't think it's > >> fio. > > > > Awesome, thank you both for checking it out. So, it's definitely > > something in my test environment. > > > >> Luis, could it be related to a kernel config option? > > > > Yeah, it could be. I've tested this on a rolling release (openSUSE TW), > > so it's definitely quite different from Debian 10. It may take me a bit > > to figure out what's going on, but I'll start with this kernel config and > > report back any finding. > > > > Again, thank you both for confirming it's working on your side. > > Do you have a core file from fio? Would be interesting to get a > backtrace from it. Ok, not a lot of progress from my end yet, but here's some info gathered with gdb from the core file: #0 0x000056505966b361 in io_completed (td=0x7f2b0c5437a0, io_u_ptr=0x7ffec2403e48, icd=0x7ffec2403e60) at /usr/src/debug/fio-3.28-1.1.x86_64/io_u.c:2012 #1 0x000056505966b922 in ios_completed (icd=0x7ffec2403e60, td=0x7f2b0c5437a0) at /usr/src/debug/fio-3.28-1.1.x86_64/io_u.c:2086 #2 io_u_queued_complete (td=0x7f2b0c5437a0, min_evts=) at /usr/src/debug/fio-3.28-1.1.x86_64/io_u.c:2145 #3 0x0000565059680e88 in do_io (td=0x7f2b0c5437a0, bytes_done=0x7ffec2404070) at /usr/src/debug/fio-3.28-1.1.x86_64/backend.c:1176 #4 0x000056505968a8ee in thread_main (data=data@entry=0x56505ae43510) at /usr/src/debug/fio-3.28-1.1.x86_64/backend.c:1870 #5 0x000056505968ca48 in run_threads (sk_out=0x0) at /usr/src/debug/fio-3.28-1.1.x86_64/backend.c:2460 #6 0x000056505968cb55 in fio_backend (sk_out=0x0) at /usr/src/debug/fio-3.28-1.1.x86_64/backend.c:2597 #7 fio_backend (sk_out=0x0) at /usr/src/debug/fio-3.28-1.1.x86_64/backend.c:2558 #8 0x000056505962fd97 in main (argc=4, argv=0x7ffec240c448, envp=) at /usr/src/debug/fio-3.28-1.1.x86_64/fio.c:60 And here's the io_completed() code where the crash occurs: 2007 if (io_u->resid) { 2008 io_u->xfer_buflen = io_u->resid; 2009 io_u->xfer_buf += bytes; 2010 io_u->offset += bytes; 2011 td->ts.short_io_u[io_u->ddir]++; 2012 if (io_u->offset < io_u->file->real_file_size) { 2013 requeue_io_u(td, io_u_ptr); 2014 return; 2015 } 2016 } > In terms of why it's failing, a guess would be that your device is using 4k > sectors and the test is trying to do 1k aligned dio. That would fail, but > it should not cause fio to crash... > > -- > Jens Axboe > Cheers, -- Luís