From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail1.merlins.org (magic.merlins.org [209.81.13.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 942812580EE for ; Wed, 15 Apr 2026 05:22:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.81.13.136 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776230523; cv=none; b=UCeai/RwJXmiDhILDz3P2n1DJEUrG5zTLJkItUZPlsciLMMzsC6klPmrMt7x6Q0TjqiiWfE9RvvcLWbuHv5ZrRuaLk6w4kTJPL3QT3K5ZhCe9eTmGp1X3X4Gb7vY19ODWTdhHTk4adJMPaZIBK98zKcdgCsdNf7gLAJozgKfGXc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776230523; c=relaxed/simple; bh=u4fWu9e6XdoN+clsjh1xsYtjNivFPVeSIAaEb3tMmlg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=SB/5pbMKzwA4UF0PFs1/QaE+eu5ghE3AsJX02gPW/5SFXaHayQbwTOToWQiiZq7sGqDyWzeU1uaZDZyLX1vZ+UE47R0Ff6bUqRP3ya1AVHi5BLjfb6vk2NEZSDCI1s3JEa53oNBiX7PrMETLOt5z8/5OVAi3nyqVdYY1+EWS7Gc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=merlins.org; spf=pass smtp.mailfrom=merlins.org; dkim=pass (2048-bit key) header.d=merlins.org header.i=@merlins.org header.b=ft1jEfxT; arc=none smtp.client-ip=209.81.13.136 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=merlins.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=merlins.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=merlins.org header.i=@merlins.org header.b="ft1jEfxT" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=merlins.org ; s=20251023; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=rCFfaUI+nTHgQpm2VbtuShYYkf4EC252UQJoGqiYKQw=; b=ft1jEfxTAqf0yTQlf2fTPXGNqw sa9Uuc9xWMCLGa/B0ecgXIspAUbjwFXRlXf6hMXIHubGyO4C8hB3IaPf7FhvH+EWGHm8M0tJSC8LR 62L/ACN/lrOEc99ZaCChhg8MpfHHj0bp9T+eA1oMQHWFSN24/Z/8WJY/NsnAIdYKwFRBe4ZLm/nS6 OMx2K/pklZafrJYd3R69wEE0rvVCROnZ7yeSCmJOLNf/XGT9QGN42WPaTnZ+mQZ6J2ga+i9TeBWnN G5xsiNEiNAqMHrS8ZZ3BjTHU7gb7AiTrx8v5dlFiVoF8GBD6iFB1VGpmBInHms0/Sdt1fxvzGqbzg 5NfmlbEw==; Received: from [24.6.49.44] (port=50022 helo=sauron.svh.merlins.org) by mail1.merlins.org with esmtpsa (Cipher TLS1.3:ECDHE_SECP256R1__ECDSA_SECP256R1_SHA256__AES_256_GCM:256) (Exim 4.98.2 #2) id 1wCshJ-00000004DC2-1y5r by authid with srv_auth_plain; Tue, 14 Apr 2026 22:21:57 -0700 Received: from merlin by sauron.svh.merlins.org with local (Exim 4.96) (envelope-from ) id 1wCshH-006tBG-3C; Tue, 14 Apr 2026 22:21:56 -0700 Date: Tue, 14 Apr 2026 22:21:55 -0700 From: Marc MERLIN To: Boris Burkov Cc: linux-btrfs , Josef Bacik , QuWenruo , Qu Wenruo , Filipe Manana , Chris Murphy , Zygo Blaxell , Roman Mamedov , To: Su Yue , Su Yue ; Subject: Re: Simple quota unsafe? RIP: 0010:__btrfs_free_extent.isra.0+0xc41/0x1020 [btrfs] / do_free_extent_accounting:2999: errno=-2 No such entry Message-ID: References: <20260413184731.GA3448810@zen.localdomain> Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Sysadmin: BOFH X-URL: http://marc.merlins.org/ X-SA-Exim-Connect-IP: 24.6.49.44 X-SA-Exim-Mail-From: marc_btrfs@merlins.org If you don't mind my asking, and even if it's just a guess: 1) do you feel squotas are likely safe and I hit another bug? 2) any chance it can be block-group-tree instead? Are those considered reasonably safe? (I enabled due to the number of snapshots, 100+, and being told it's bad for perf to have that many, which block-group-tree is supposed to fix) 3) anyone still taking bugs for btrfs check --repair since it fixed nothing on an unmountable filesystem 4) anything useful to anyone in my broken filesystem which might be easy to fix but not by me before I give up, delete it all and do the multi week restore? Thanks, Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Home page: http://marc.merlins.org/ | PGP 7F55D5F27AAF9D08