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--create is not a valid option.
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kmod is unecessary if loadable module support is disabled in the kernel,
so make the dependency optional.
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It's not configuration, so it doesn't belong in udev.
Also, remove the catalog when uninstalling udev.
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If firmware file is not found in the file system, udev
terminates firmware loading. This is not the case if
firmware file exists in the file system but doesn't have
any data in it.
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I'm building systemd for an embedded system and we would prefer not having
to include the entire util-linux package just to get a libblkid whose
functionality we don't need.
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On Thu, Nov 15, 2012 at 5:05 PM, Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> wrote:
> Something like this appeared with latest git:
>
> Nov 15 16:55:46 fedora-15 systemd-udevd[334]: worker [364] terminated by signal 11 (Segmentation fault)
> Nov 15 16:55:46 fedora-15 [387]: Process 364 (systemd-udevd) dumped core.
> Nov 15 16:55:46 fedora-15 systemd-udevd[334]: worker [364] failed while handling '/devices/virtual/net/lo'
> Nov 15 16:55:46 fedora-15 systemd-udevd[334]: worker [360] terminated by signal 11 (Segmentation fault)
> Nov 15 16:55:46 fedora-15 systemd-udevd[334]: worker [360] failed while handling '/devices/pci0000:00/0000:00:03.0/virtio0/net
> Nov 15 16:55:46 fedora-15 [389]: Process 360 (systemd-udevd) dumped core.
>
> Core was generated by usr/lib/systemd/systemd-udevd'.
> Program terminated with signal 11, Segmentation fault.
> #0 0x0000000000423c87 in udev_hwdb_get_properties_list_entry (hwdb=0x0, modalias=0x7fffbcd155f0
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If a 'change' event is supposed to remove created symlinks, we create
a new device structure from the sysfs device and fill it with the list
of links, to compute the delta of the old and new list of links to apply.
If the device is already 'remove'd by the kernel though, udev fails to
create the device structure, so the links are not removed properly.
> From: Neil Brown <nfbrown@suse.com>
> Date: Thu, 8 Nov 2012 10:39:06 +0100
> Subject: [PATCH] If a 'change' event does not get handled by udev until
> after the device has subsequently disappeared, udev mis-handles
> it. This can happen with 'md' devices which emit a change
> event and then a remove event when they are stopped. It is
> normally only noticed if udev is very busy (lots of arrays
> being stopped at once) or the machine is otherwise loaded
> and reponding slowly.
>
> There are two problems.
>
> 1/ udev_device_new_from_syspath() will refuse to create the device
> structure if the device does not exist in /sys, and particularly if
> the uevent file does not exist.
> If a 'db' file does exist, that is sufficient evidence that the device
> is genuine and should be created. Equally if we have just received an
> event from the kernel about the device, it must be real.
>
> This patch just disabled the test for the 'uevent' file, it doesn't
> try imposing any other tests - it isn't clear that they are really
> needed.
>
> 2/ udev_event_execute_rules() calls udev_device_read_db() on a 'device'
> structure that is largely uninitialised and in particular does not
> have the 'subsystem' set. udev_device_read_db() needs the subsystem
> so it tries to read the 'subsystem' symlink out of sysfs. If the
> device is already deleted, this naturally fails.
> udev_event_execute_rules() knows the subsystem (as it was in the
> event message) so this patch simply sets the subsystem for the device
> structure to be loaded to match the subsystem of the device structure
> that is handling the event.
>
> With these two changes, deleted handling of change events will still
> correctly remove any symlinks that are not needed any more.
Use udev_device_new() instead of allowing udev_device_new_from_syspath()
to proceed without a sysfs device.
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Thanks to Glen Ditchfield <gjditchfield@acm.org>!
https://launchpad.net/bugs/1071579
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error
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Some keymaps apply to a large range of computer models, not all of which have
all of the scan codes in the maps. If a single scan code is invalid, do not
abort but continue with the next entry in the map. Instead just show the error
message for that particular scan code, to help with debugging.
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Commit b1f87c76b1 changed sscanf from %i to %u, as scan codes are unsigned
numbers which can be > 0x7FFFFFFF. However, sscanf doesn't accept hexadecimal
numbers for %u. It works fine with %i, so revert this back.
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This was removed ages ago.
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Add support for scm block devices. Introduced here:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=f30664e2
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
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According to Linux drivers/input/evdev.c, scan codes are unsigned, not int nor
uint32_t.
Thanks to Dejan Tosovic <dejan@post.com> for reporting this!
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The removal of the TIMEOUT= handling in udevd put firmware requests into the
devpath parent/child dependency tracking. Drivers which block in module_init()
asking userspace for firmware ran into a 30 sec device timeout.
The whole firmware loading willl hopefully move into the kernel and
the fragile-since-day-one fake async driver-core device dance involving
udev can be retired:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=abb139e75c2cdbb955e840d6331cb5863e409d0e
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Returns from no memory checks updated with log_oom call
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All "btrfs" file systems will be registered with the kernel when they
show up.
Incomplete multi-device volumes will set SYSTEMD_READY=0, to prevent
access until the volume is complete and fully registered.
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https://bugs.freedesktop.org/show_bug.cgi?id=54501
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With this adjustment, we can reuse this code elsewhere, such as in
nspawn.
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