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Message #03988
[Bug 1208978] Re: Empty tmpfs mount reported as full
Hmmm...
I just released the aufs mount and the tmpfs is correctly showing as
empty again.
$ sudo umount ~/.wine
$ df
Filesystem Size Used Avail Use% Mounted on
<snip>
none 1003M 0 1003M 0% /tmp/test
Maybe aufs is messing something up?
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https://bugs.launchpad.net/bugs/1208978
Title:
Empty tmpfs mount reported as full
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
After using a tmpfs mount for a while it starts reporting that it is
almost full and become unusable.
$ mount ; df ; sudo ls -alR /tmp/test/
<snip>
none on /tmp/test type tmpfs (rw,uid=1000,gid=1000)
none on /home/ken/.wine type aufs (rw,br:/tmp/test:/home/ken/.wine.dotnet20)
Filesystem Size Used Avail Use% Mounted on
<snip>
none 1003M 881M 122M 88% /tmp/test
none 1003M 881M 122M 88% /home/ken/.wine
/tmp/test/:
total 12
drwxrwxrwt 4 ken ken 100 Aug 6 20:35 .
drwxrwxrwt 10 root root 12288 Aug 6 20:38 ..
-r--r--r-- 1 root root 0 Aug 6 19:08 .wh..wh.aufs
drwx------ 2 root root 40 Aug 6 19:08 .wh..wh.orph
drwx------ 2 root root 40 Aug 6 19:08 .wh..wh.plnk
/tmp/test/.wh..wh.orph:
total 0
drwx------ 2 root root 40 Aug 6 19:08 .
drwxrwxrwt 4 ken ken 100 Aug 6 20:35 ..
/tmp/test/.wh..wh.plnk:
total 0
drwx------ 2 root root 40 Aug 6 19:08 .
drwxrwxrwt 4 ken ken 100 Aug 6 20:35 ..
As you should be able to see the tmpfs mount on /tmp/test claims to be
using ~900 MB but it's really only using a few bytes. It works
perfectly for a while but then does this.
I have been using the mount with aufs and the copy-on-write files are
stored here. Since starting this report the "used" amount has dropped
around 20 MB but there's no reason for this. There is no longer
anything running that would use this directory.
Nothing seems relevant in dmesg or the syslog.
I don't know how to debug further.
I will check the upstream kernel, but this is likely to cause other
problems and will probably be difficult to recreate. I will report
back once I know.
Note to self: While testing
http://bugs.winehq.org/show_bug.cgi?id=34217
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-51-generic-pae 3.2.0-51.77
ProcVersionSignature: Ubuntu 3.2.0-51.77-generic-pae 3.2.48
Uname: Linux 3.2.0-51-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices: aplay: device_list:252: no soundcards found...
ApportVersion: 2.0.1-0ubuntu17.3
Architecture: i386
ArecordDevices: arecord: device_list:252: no soundcards found...
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/hwC0D1', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory
Date: Tue Aug 6 20:38:16 2013
HibernationDevice: RESUME=UUID=113e73a6-3c10-4fbc-a9a4-5160e676d325
InstallationMedia: Ubuntu-Server 12.04.1 LTS "Precise Pangolin" - Release i386 (20120817.3)
Lsusb:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: Dell Inc. MM061
MarkForUpload: True
ProcEnviron:
LANGUAGE=en_GB:en
TERM=xterm
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-51-generic-pae root=UUID=0c3228e5-3952-43c1-b666-1c790f791025 ro persistent zcache
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-3.2.0-51-generic-pae N/A
linux-backports-modules-3.2.0-51-generic-pae N/A
linux-firmware 1.79.6
RfKill: Error: [Errno 2] No such file or directory
SourcePackage: linux
StagingDrivers: zram
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/13/2007
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A17
dmi.board.name: 0KD882
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA17:bd06/13/2007:svnDellInc.:pnMM061:pvr:rvnDellInc.:rn0KD882:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: MM061
dmi.sys.vendor: Dell Inc.
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