/sbin/udevstart segfaults on an ATIIXP chipset which is not supported
well by the kernel yet. There, /proc/ide/hda/media can not be read
(EIO error) and udevstart seems to give a null-pointer to an SELinux
function checking the media-type.
[PATCH] udevd-test.pl: remove wrong date calculation
A hour wrap during the test run does not work :) Just remove
all the useless date conversions as we are only interested in the
seconds it takes to process.
[root@pim udevd-test]# ./udevd-test.pl 9
...
device: /class/tty/console, action: remove
forking udev time: Sat Dec 11 18:59:57 2004
the delay time is: 3 s
device: /class/tty/ptmx, action: remove
forking udev time: Sat Dec 11 19:00:07 2004
the delay time is: 4013 s
the delay time is: 4013
udevd doesn't act properly.
[PATCH] add -V option to udev to print the version number
On Sat, 2004-12-11 at 18:44 +0200, Martin Schlemmer [c] wrote:
>
> Any suggestions to determining the version of the installed udev?
> This is now during startup, to see if we can make use of using
> udevsend as hotplug agent. If the system was up, udevinfo could
> be used, but that is in /usr/bin that might be on a seperate /usr.
> I know we might move udevinfo to /bin, but that might be an issue
> for some, and adding a -V switch to /sbin/udev might be a better
> choice.
[PATCH] prevent udev node creatinon for "class" registration
I've found a /dev/video4linux node and just realized, that libsysfs
searches all subdirs for an attribute name.
So it found /class/video4linux/video0/dev for the videodev class
creation event /class/video4linux and created a node.
[PATCH] udevd: serialization of the event sequence of a chain of devices
Currently udevd delays only events for the same DEVPATH.
Example of an "add" event sequence:
/block/sda
/block/sda/sda1
With this change, we make sure, that the udev process handling
/block/sda has finished its work (waited for all attributes,
created the node) before we fork the udev event for /block/sda/sda1.
This way the event for sda1 can be sure, that the node for the
main device is already created (may be useful for disk labels).
It will not affect any parallel device handling, only the sequence
of the devices directory chain is serialized. The 10.000 disks
plugged in will still run as parallel events. :)
The main motivation to do this is the program execution of the
dev.d/ and hotplug.d/ directory. If we don't wait for the parent
event to exit, we can't be sure that the executed scripts are
run in the right order.
On Thu, Dec 09, 2004 at 09:18:28AM +0100, Kay Sievers wrote:
> On Wed, 2004-12-08 at 19:07 -0800, David Brownell wrote:
> > Could that argument apply to the underlying hardware, too?
> We now make sure that the sequence of events for a device
> is serialized for every device chain and the class/block
> devices which have a "device" link to a physical device are
> handled after the physical device is fully populated and
> notified to userspace. It will only work this way on kernels
> later than 2.6.10-rc1 cause it depends on the PHYSDEVPATH
> value in the hotplug environment.
[PATCH] Various typos and other litte errors in udev.8.in
Thanks-To: Tobias Klauser <tklauser@access.unizh.ch>
While crawling through the udev manpage I noticed some typos and other
grammatical errors. English is not my native language, so I'm not sure
if I fixed everything right. I would be glad if any English-speaking
person could check this patch before applying.
Initialize the defaults in udev_config.c instead of namedev.c.
Replace macro by expanded code. Switch to mode_t instead
of string value. Add and clarify some comments.
[PATCH] update the man pages and correct Usage: hints
Add UDEV_LOG to the man udev man page. Remove mention of specific
variables from the udevd/udevsend man page as we changed to pass
the whole environment.
Correct printed Usage: of udevtest and udevinfo.
Init the config in udevtest earlier to accept input with and without
the sysfs mount point.
[PATCH] don't call dev.d/ scripts twice, if directory = subsystem
The /etc/dev.d/input/input.dev was called twice for /dev/input/mouse.
Skip the execution if we get a directory named after the subsystem.
Move UDEV_NO_DEVD where it belongs.
I just noticed that the DEVNAME enviroment variable isn't being set anymore
in udev 0.046 on device removal, while it was being set in 0.042. We're using
the property tto do umount -l <devices> when a block device is removed. Afaik
there is no other way to associate a device with it's DEVNAME on removal ?
Also are there cases where doing umount -l on the removed devices is wrong?
I guess the device is gone, so there is no sense in keeping it mounted (it's
not like the filesystem is gonna come back in a sane state again)..
Attached (trivial) patch brings back the DEVNAME variable on device removal.
[PATCH] Patch from Alex Riesen <raa.lkml@gmail.com>
> I just put const's at some places. It cut down data segments, but
> increased code size.
> Overall still smaller:
>
> -rwxr-xr-x 1 user users 50420 Nov 19 10:53 ../udev-046/udev
> -rwxr-xr-x 1 user users 49556 Nov 19 10:53 udev
> text data bss dec hex filename
> 47245 968 22480 70693 11425 ../udev-046/udev
> 48089 104 22064 70257 11271 udev
>
> Also, the instance of utsname in udev_lib.c is used only once.
The slow logging facilites on some systems are a reason for
the reported slowness of udevstart. On one of my boxes udevstart
is down from 9 second to 0.3 seconds.
Some broken ide drivers are generating high event traffic, with
add/remove events. With this attribute, it can be specified,
that the node is always available. It may be used in conjunction
with the new DRIVER= match to catch specific kernel device drivers.
The option "-s" will get information about the major/minor,
the physical device, the bus value and the driver from sysfs for
all class and block devices:
Make _all_ hotplug variables available to the forked udev,
the udev callouts and the udev dev.d/ scripts. We put the
whole environment into a buffer and send it over the udevd
socket. udevd recreates *envp[] and passes it to the exec().