From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.web.de ([212.227.15.4]:58158 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751454AbcHIJKC (ORCPT ); Tue, 9 Aug 2016 05:10:02 -0400 Received: from [192.168.1.48] ([5.56.189.241]) by smtp.web.de (mrweb002) with ESMTPSA (Nemesis) id 0Lz2zw-1bAztE3NFA-014Cb6 for ; Tue, 09 Aug 2016 11:09:24 +0200 From: Thomas Subject: Issue: errno:28 (No space left on device) To: linux-btrfs@vger.kernel.org Message-ID: Date: Tue, 9 Aug 2016 11:09:24 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Sender: linux-btrfs-owner@vger.kernel.org List-ID: Hello! I'm facing a severe issue with Debian installation using BTRFS: errno:28 (No space left on device) After a few minutes of system usage I get this error message for any action, means there's really no disk space left. However, the output of btrfs fi usage / reports that ~10% of disk space should be free. I have 2 questions: 1. Why is the OS reporting an error "Issue: errno:28 (No space left on device)" whereas "btrfs fi usage" reports free space? 2. How can I solve this issue w/o the possibility of extending the partition? THX --------------------------------------------------------------------------------------- thomas@pc8-nb:~$ uname -a Linux pc8-nb 4.6.1-towo.1-siduction-amd64 #1 SMP PREEMPT siduction 4.6-1 (2016-06-04) x86_64 GNU/Linux thomas@pc8-nb:~$ sudo btrfs --version btrfs-progs v4.5.2 thomas@pc8-nb:~$ sudo btrfs fi usage / Overall: Device size: 20.53GiB Device allocated: 20.53GiB Device unallocated: 0.00B Device missing: 0.00B Used: 18.25GiB Free (estimated): 1.96GiB (min: 1.96GiB) Data ratio: 1.00 Metadata ratio: 1.00 Global reserve: 160.00MiB (used: 400.00KiB) Data,single: Size:19.76GiB, Used:17.81GiB /dev/sda8 19.76GiB Metadata,single: Size:776.00MiB, Used:455.73MiB /dev/sda8 776.00MiB System,single: Size:4.00MiB, Used:16.00KiB /dev/sda8 4.00MiB Unallocated: /dev/sda8 0.00B thomas@pc8-nb:~$ sudo btrfs fi show Label: 'siduction' uuid: dbb9433e-a84f-4e84-9200-49350b31a3f6 Total devices 1 FS bytes used 18.25GiB devid 1 size 20.53GiB used 20.53GiB path /dev/sda8 thomas@pc8-nb:~$ sudo btrfs su li / ID 257 gen 5498245 top level 5 path @ ID 258 gen 5498245 top level 5 path @home ID 259 gen 5488356 top level 5 path @tmp ID 260 gen 2029641 top level 5 path @var_lib_lxc ID 261 gen 5480763 top level 5 path @var_log ID 262 gen 5467204 top level 5 path @var_spool ID 263 gen 5467205 top level 5 path @var_tmp ID 290 gen 5464299 top level 257 path .snapshots ID 291 gen 2026169 top level 258 path @home/.snapshots ID 293 gen 2029641 top level 260 path @var_lib_lxc/.snapshots ID 355 gen 163972 top level 290 path .snapshots/17/snapshot ID 356 gen 167205 top level 290 path .snapshots/18/snapshot ID 357 gen 5383634 top level 5 path @var_cache_apt_archives ID 358 gen 5464163 top level 290 path .snapshots/19/snapshot thomas@pc8-nb:~$ sudo journalctl | grep space [...] Jun 16 17:52:39 pc8-nb unattended-upgrade-shutdown[13530]: OSError: [Errno 28] No space left on device Jun 16 17:52:39 pc8-nb unattended-upgrade-shutdown[13530]: OSError: [Errno 28] No space left on device Jun 16 17:52:39 pc8-nb unattended-upgrade-shutdown[13530]: OSError: [Errno 28] No space left on device [...] Jul 17 04:43:02 pc8-nb cron-apt[2658]: E: Failed to fetch http://ftp.fau.de/debian/dists/stable/main/Contents-i386 Write error - write (28: No space left on device) Jul 17 04:43:02 pc8-nb cron-apt[2658]: E: Failed to fetch http://debian.mirror.lrz.de/debian/dists/stable/contrib/binary-i386/Packages.gz Write error - write (28: No space left on device) Jul 17 04:43:02 pc8-nb cron-apt[2658]: E: Failed to fetch http://debian.mirror.lrz.de/debian/dists/stable/contrib/i18n/Translation-en Write error - write (28: No space left on device) Jul 17 04:43:02 pc8-nb cron-apt[2658]: E: Failed to fetch http://debian.mirror.lrz.de/debian/dists/stable/contrib/Contents-amd64 Write error - write (28: No space left on device) Jul 17 04:43:02 pc8-nb cron-apt[2658]: E: Failed to fetch http://debian.mirror.lrz.de/debian/dists/stable/contrib/Contents-i386 Write error - write (28: No space left on device) Jul 17 04:43:02 pc8-nb cron-apt[2658]: E: Failed to fetch http://mirror.unitedcolo.de/debian/dists/stable/non-free/binary-amd64/Packages.gz Write error - write (28: No space left on device) Jul 17 04:43:02 pc8-nb cron-apt[2658]: E: Failed to fetch http://mirror.unitedcolo.de/debian/dists/stable/non-free/binary-i386/Packages.gz Write error - write (28: No space left on device) Jul 17 04:43:02 pc8-nb cron-apt[2658]: E: Failed to fetch http://debian.mirror.lrz.de/debian/dists/stable/non-free/i18n/Translation-en Write error - write (28: No space left on device) Jul 17 04:43:02 pc8-nb cron-apt[2658]: E: Failed to fetch http://mirror.unitedcolo.de/debian/dists/stable/non-free/Contents-amd64 Write error - write (28: No space left on device) Jul 17 04:43:02 pc8-nb cron-apt[2658]: E: Failed to fetch http://ftp.fau.de/debian/dists/stable/non-free/Contents-i386 Write error - write (28: No space left on device) [...]