Public bug reported:
g_udev_client_query_by_device_number works on files that are on regular
filesystems but fails on btrfs volumes.
To replicate, download the attached source file.
Compile it: gcc -Wall -o idnum idnum.c `pkg-config --cflags --libs
glib-2.0 gio-2.0 gudev-1.0`
This happens on ext4:
./idnum
Device id is 2065.
This happens on btrfs:
./idnum
Device id is 25.
Could not get device from num.
The file layout is the default as provided by the ubuntu installer. That
is, the volume has two subvolumes called @ and @home.
Filed against systemd package, because that's where ubuntu-bug forwarded
me.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: libgudev-1.0-0 1:198-0ubuntu11.1
ProcVersionSignature: Ubuntu 3.8.0-26.38-generic 3.8.13.2
Uname: Linux 3.8.0-26-generic x86_64
ApportVersion: 2.9.2-0ubuntu8.2
Architecture: amd64
Date: Thu Jul 4 15:34:20 2013
InstallationDate: Installed on 2013-05-20 (45 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
SourcePackage: systemd
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug raring
** Attachment added: "idnum.c"
https://bugs.launchpad.net/bugs/1197796/+attachment/3724322/+files/idnum.c
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https://bugs.launchpad.net/bugs/1197796
Title:
g_udev_client_query_by_device_number fails on btrfs disks
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