On my stable amd64 system removable block devices (CD-ROM, SD card, et.c) don't appear for the kernel until I manually read data from the device node (e.g. by "cat /dev/sr0"). This means all automounting functions currently do not work for me. The reason seems to be a value if 0 for the /sys/module/block/parameters/events_dfl_poll_msecs parameter. This setting is coming from /lib/udev/rules.d/60-persistent-storage.rules. Setting the value of /sys/module/block/parameters/events_dfl_poll_msecs to e.g. 2000 fixes the problem and all removable media is recognized on insertion and the automounting mechanisms work again. Is there a reason for disabling in-kernel polling via udev config or is this considered a bug?
Good question. Let's find out. Which kind of automounting do you mean? Like with sys-fs/udisks? Or something like autofs? CONFIG_EPOLL=y missing from kernels config? emerge of sys-fs/udev complaining any other kernel setting is missing? I see both 0 and 2000 in my 60-persistent-storage.rules for ATTR{parameters/events_dfl_poll_msecs}=
Hi Samuli, thanks for your fast response. I use XFCE with thunar-volman for managing removable media. Technically it doesn't automount (all these options in thunar-volman are disabled), sorry for using this expression. The medium gets mounted when I click on the appropriate XFCE desktop icon for the SD card/CDROM/.... I have to admit I'm not sure how the full mechanism works, but I think it's udisks backed. To be more precise, the problem symptom is the missing media icon. When I insert a CD virtually nothing happens on the desktop, in either the kernel messages or the syslog. Then I run "fdisk -l", "cat /dev/sr0" or something udisks related, e.g. "udisks --enumerate" and ~3 seconds later the media icon appears on the XFCE desktop (no mounting occurs, but that is wanted, configured behaviour). CONFIG_EPOLL=y is set. udev emerge doesn't complain about my kernel config. If I can provide more details I'll gladly do.
Do you have cdrom in /etc/fstab? Is gnome-base/gvfs built with USE="gdu" or with USE="udisks"? If it's built with USE="udev gdu", then entries in /etc/fstab should conflict with sys-fs/udisks:0 but if it's built with USE="udev udisks", then entries in /etc/fstab shouldn't matter for sys-fs/udisks:2. In any case, if you have cdrom in fstab, remove it from there for a test. Just covering the basics before we dug into deeper.
Good morning. I'm using the default/linux/amd64/13.0/desktop profile and have no modifications regarding one of these three USE flags. This means gnome-base/gvfs-1.16.4 has USE="udisks udev -gdu" here. My fstab has no entries for removable media, just the normal fixed hard drive.
Can you pastebin the output of `udevadm test /sys/block/sr0` assuming sr0 is your cdrom? And `cat /sys/block/sr0/removable` is 0 or 1?
/dev/sr0 is indeed my optical drive. The output of `udevadm test /sys/block/sr0` is without inserted medium: http://pastebin.com/UdgN0ByF with inserted medium: http://pastebin.com/r62uB8z1 Again the icon for the inserted medium didn't turn up until I ran `udevadm test /sys/block/sr0`. cat /sys/block/sr0/removable is 1 in both conditions.
Is /usr/libexec/gvfs-udisks2-volume-monitor running? Is /usr/lib/udisks2/udisksd running? Like, ssuomin+ 8245 0.0 0.0 264300 4884 ? Sl Feb21 0:02 /usr/libexec/gvfs-udisks2-volume-monitor root 8248 0.0 0.0 417416 5376 ? Sl Feb21 2:10 /usr/lib/udisks2/udisksd --no-debug
They are both running. roland@olifant ~ $ ps aux | grep -E "udisksd|gvfs-udisks2-volume-monitor" roland 1386 0.0 0.0 207396 5416 ? Sl 15:12 0:00 /usr/libexec/gvfs-udisks2-volume-monitor root 1389 0.0 0.0 366204 7604 ? Sl 15:12 0:00 /usr/lib/udisks2/udisksd --no-debug
Today I updated to the new stable sys-fs/udisks-2.1.3 and sys-fs/udisks-1.0.5, but unfortunately nothing changed.
I wonder if this is related to bug 461828
I'm not using genkernel, but I checked CONFIG_UEVENT_HELPER nevertheless. It is set to an empty string. The software versions have updated with recent stabilizations, but the problem unfortunately persists. I'm now on sys-kernel/gentoo-sources-3.12.13:3.12.13 sys-fs/udisks-2.1.3:2 gnome-base/gvfs-1.18.3-r1
This looks somewhat related, http://permalink.gmane.org/gmane.comp.sysutils.systemd.devel/21181 However, http://permalink.gmane.org/gmane.comp.sysutils.systemd.devel/21195
Please file a new bug against sys-apps/systemd-utils if this is still an issue.
