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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E2A84C43334 for ; Mon, 6 Jun 2022 14:05:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239513AbiFFOFM (ORCPT ); Mon, 6 Jun 2022 10:05:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34904 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239499AbiFFOFH (ORCPT ); Mon, 6 Jun 2022 10:05:07 -0400 X-Greylist: delayed 91 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Mon, 06 Jun 2022 07:05:05 PDT Received: from ts201-smtpout71.ddc.teliasonera.net (ts201-smtpout71.ddc.teliasonera.net [81.236.60.178]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 7161731CC88 for ; Mon, 6 Jun 2022 07:05:03 -0700 (PDT) X-RG-Rigid: 626BF3990169006B X-Originating-IP: [81.226.241.77] X-RazorGate-Vade: gggruggvucftvghtrhhoucdtuddrgedvfedruddtvddgjeduucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuvffgnffktefuhgdpggftfghnshhusghstghrihgsvgdpqfgfvfenuceurghilhhouhhtmecufedttdenucenucfjughrpefkffggfgfvhffutgfgsehtjeertddtfeejnecuhfhrohhmpefvohhrsghjnphrnhgplfgrnhhsshhonhcuoehtohhrsghjohhrnhesjhgrnhhsshhonhdrthgvtghhqeenucggtffrrghtthgvrhhnpedutedvhedvfeejkedvteeugeekgfekudeliefhjefhteekgffftdfgleefffdtleenucfkphepkedurddvvdeirddvgedurdejjeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhephhgvlhhopehgrghmmhgurghtrghnrdhhohhmvgdrlhgrnhdpihhnvghtpeekuddrvddviedrvdeguddrjeejpdhmrghilhhfrhhomhepthhorhgsjhhorhhnsehjrghnshhsohhnrdhtvggthhdpnhgspghrtghpthhtohepuddprhgtphhtthhopehlihhnuhigqdgsthhrfhhssehvghgvrhdrkhgvrhhnvghlrdhorhhg X-RazorGate-Vade-Verdict: clean 0 X-RazorGate-Vade-Classification: clean Received: from gammdatan.home.lan (81.226.241.77) by ts201-smtpout71.ddc.teliasonera.net (5.8.716) id 626BF3990169006B for linux-btrfs@vger.kernel.org; Mon, 6 Jun 2022 16:03:30 +0200 Received: from [192.168.9.3] (tobbe.home.lan [192.168.9.3]) by gammdatan.home.lan (8.17.1/8.16.1) with ESMTP id 256E3ULM751480 for ; Mon, 6 Jun 2022 16:03:30 +0200 Message-ID: <023b5ca9-0610-231b-fc4e-a72fe1377a5a@jansson.tech> Date: Mon, 6 Jun 2022 16:03:33 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.10.0 Content-Language: en-US To: linux-btrfs@vger.kernel.org From: =?UTF-8?Q?Torbj=c3=b6rn_Jansson?= Subject: btrfs-convert aborts with an assert Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Hello i tried to do a btrfs-convert of a ext4 filesystem and after a short while after starting it i was greeted with: # btrfs-convert /dev/xxxx btrfs-convert from btrfs-progs v5.16.2 convert/main.c:1162: do_convert: Assertion `cctx.total_bytes != 0` failed, value 0 btrfs-convert(+0xffb0)[0x557defdabfb0] btrfs-convert(main+0x6c5)[0x557defdaa125] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xea)[0x7f66e1f8bd0a] btrfs-convert(_start+0x2a)[0x557defdab52a] Aborted Any idea whats going on? Is it a known bug? Is the btrfs-progs that come with my dist too old? FYI the ext4 filesystem is a bit large ~10tb of used data on it. I assume the convert didn't even start in this case and nothing was modified on the ext4 filesystem, correct? or?