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[87.8.168.238]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-427f00ce178sm5593196f8f.46.2025.10.18.10.07.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 18 Oct 2025 10:07:39 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Sat, 18 Oct 2025 19:07:38 +0200 Message-Id: Subject: Re: high space usage after ext3 btrfs-convert From: "koraynilay" To: "koraynilay" , X-Mailer: aerc 0.21.0-0-g5549850facc2 References: In-Reply-To: Update on this issue: > which should've been fixed by the defrag After asking on #btrfs on irc I found the solution, which was actually to use defrag, but with -t 4G and forcing compression/no compression by using -czstd/--nocomp. By running a defrag on the full fs and on some folders/files that still appeared as , I was able to get the space to ~4 GiB (and hopefully it will go to 0 after defragging those remaining folders/files). Thanks to Forza for telling me the solution and for multicore and eyeoh for taking some of their time to help me. P.S. > that I had 488 GiB free, but when I deleted ~215 GiB, the free space=20 This was actually ~86 GiB, but irrelevant I think.