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drphibes
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Joined: 30 Nov 2004
Posts: 432
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 Posted: Fri Jul 01, 2005 3:01 pm Post subject: udev [059-070] bug discussions |
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Looks like there were some very substantive changes for udev-059. I just emerged 059 and I notice that when I boot, the /etc/hotplug.d/default.hotplug script complains bitterly on any reference to /dev/null, e.g. line 26. Are there changes we need to make to hotplug to accommodate udev-059? Note that the /dev/null device is created by udev, but it seems it is now not there when hotplug wants it. Starting hotplug in either runlevel 'boot' or 'default' yields the same result. I normally start both hot/coldplug in the boot runlevel.
Looks like the default.hotplug script is now incompatibile with udev-059.
Last edited by drphibes on Thu Sep 15, 2005 5:54 pm; edited 8 times in total |
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chenxy
n00b
Joined: 10 May 2003
Posts: 13
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| Posted: Fri Jul 01, 2005 3:29 pm Post subject: |
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| same problem as you. |
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m0p
Apprentice
Joined: 20 Jun 2005
Posts: 205
Location: en_GB
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| Posted: Fri Jul 01, 2005 3:48 pm Post subject: |
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| Run etc-update (or dispatch-conf, either or) and see if that fixes the problem. Someone had a problem like this earlier on IRC. |
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drphibes
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Joined: 30 Nov 2004
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| Posted: Fri Jul 01, 2005 4:02 pm Post subject: |
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No it's not that simple. From what I am reading in the udev release-notes, the old hotplug agent is being supplanted by udev and udev rules. In other words, when you hotplug a device, the "new" way to do things is to use /sbin/udevsend as the hotplug agent instead of /sbin/hotplug, with udev now using rules to guide the loading of modules through this new agent.
Last edited by drphibes on Thu Jul 14, 2005 9:03 pm; edited 3 times in total |
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didl
Retired Dev
Joined: 09 Sep 2003
Posts: 1106
Location: Pittsburgh, PA
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| Posted: Fri Jul 01, 2005 5:27 pm Post subject: |
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You can try to completele remove hotplug (and with it the default.hotplug script)
from your install leaving only udev and hotplug-base. This works fine for me. |
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drphibes
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Joined: 30 Nov 2004
Posts: 432
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| Posted: Fri Jul 01, 2005 5:47 pm Post subject: |
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| didl wrote: | You can try to completele remove hotplug (and with it the default.hotplug script)
from your install leaving only udev and hotplug-base. This works fine for me. |
did you try hotplugging something afterwards? i would typically hotplug one or two usb devices, such as my memory stick reader....do i need to write udev rules to do what hotplug used to do? |
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didl
Retired Dev
Joined: 09 Sep 2003
Posts: 1106
Location: Pittsburgh, PA
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| Posted: Fri Jul 01, 2005 6:27 pm Post subject: |
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I tried my USB mouse - no problem. I didn't have to write any rules,
at least not for the mouse. |
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drphibes
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Joined: 30 Nov 2004
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| Posted: Fri Jul 01, 2005 9:22 pm Post subject: |
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| Well, my external usb dvd drive is not detected without hotplug and, worse, coldplug depends on hotplug, i.e. emerge -C hotplug && emerge coldplug will reinstall hotplug anyway. I am gonna mask off udev-059 and let the dust settle. I expect many posts and bug reports on related issues. Back to udev-058 for now. |
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Lawless
l33t
Joined: 03 Nov 2003
Posts: 638
Location: Germany
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| Posted: Sat Jul 02, 2005 11:28 am Post subject: |
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The new udev seems to ruin half of my system...
First here I posted that my udev script stopped working
https://forums.gentoo.org/viewtopic-t-355137.html
Now I've noticed that when I plug in my wlan usb stick the whole system suddenly gets very slow - ifconfig does not work at all and after a while the system crashes completly...
I downgraded to udev-058 but no change.
udev was the _only_ thing I had changed on the system - so it has to be related to udev....
I'm trying now a backup of my system 
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Kernel panic: I have no root and I want to scream |
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Matteo Azzali
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Joined: 23 Sep 2004
Posts: 1133
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| Posted: Sat Jul 02, 2005 11:50 am Post subject: |
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Same issue here (hotplug line 26) and some maybe related issues with mouse....
I'll downgrade to udev-0.58 , when I'll remember where the file for masking is located 
_________________
Every day a new distro comes to birth. Every day a distro "eats" another.
If you're born distro, no matter what, start to run.
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rm
Tux's lil' helper
Joined: 25 Oct 2004
Posts: 87
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| Posted: Sat Jul 02, 2005 12:17 pm Post subject: |
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@Matteo Azzali: that would be /etc/portage/package.mask
I'm in the process of reinstalling my system on a separate partition,
should I consider using 059 or better back off and install 058 or lower?
thx,
roel |
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Lawless
l33t
Joined: 03 Nov 2003
Posts: 638
Location: Germany
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| Posted: Sat Jul 02, 2005 12:30 pm Post subject: |
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From the changelog
| Code: |
01 Jul 2005; Greg Kroah-Hartman <gregkh@gentoo.org> +udev-059.ebuild:
059 release
Note this is _very_ experimental still. Not quite sure if /etc/dev.d/
rules still run properly, but booting should still work just fine (as
long as your boot partitions aren't under some crazy-whack rule...)
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Headrush
Watchman
Joined: 06 Nov 2003
Posts: 5597
Location: Bizarro World
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| Posted: Sat Jul 02, 2005 12:53 pm Post subject: |
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| Lawless wrote: | From the changelog
| Code: |
01 Jul 2005; Greg Kroah-Hartman <gregkh@gentoo.org> +udev-059.ebuild:
059 release
Note this is _very_ experimental still. Not quite sure if /etc/dev.d/
rules still run properly, but booting should still work just fine (as
long as your boot partitions aren't under some crazy-whack rule...)
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Another case of people being ~x86 emerge happy without reading the changelog. |
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rm
Tux's lil' helper
Joined: 25 Oct 2004
Posts: 87
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| Posted: Sat Jul 02, 2005 1:43 pm Post subject: |
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in the ebuild it talking about "custom rules",
I don't have any, my new system is clean as a whistle,
I just tarred the partition, and will try 059, can easily untar
and go on with my life 
roel |
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drphibes
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Joined: 30 Nov 2004
Posts: 432
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| Posted: Sat Jul 02, 2005 7:05 pm Post subject: |
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| Headrush wrote: | | Another case of people being ~x86 emerge happy without reading the changelog. |
Actually I had a legitimate reason to ~ unmask udev, related to the fbsplash and 2.6.12 problems. I run a x86 system with ~x86 packages used only for good reason. Now if I stopped to read the package's changelog everytime a package presents itself on my emerge -Dup world list, I'd get nothing done. My feeling is the package ought to have been hard-masked, not arch-masked if it's so experimental. That said, there is a problem with udev-059 in so far as it interacts with the hotplug script bundle. It's coming up in other distros. The default.hotplug script is trying to close all the file descriptors using references to /dev/null which isn't yet available at the time the script fires.
to close stdin? How about just: etc. |
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Headrush
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Joined: 06 Nov 2003
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| Posted: Sat Jul 02, 2005 7:13 pm Post subject: |
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| drphibes wrote: | | Actually I had a legitimate reason to ~ unmask udev, related to the fbsplash and 2.6.12 problems. I run a x86 system with ~x86 packages used only for good reason. Now if I stopped to read the package's changelog everytime a package presents itself on my emerge -Dup world list, I'd get nothing done. |
I use ~amd64 packages myself but you shouldn't need to run a totally ~x86 system.
You shouldn't need ~x86 for every new version of an ebuild either. (udev)
If you have a problem with fbsplash and need udev-058 for example, you should just unmask that package needed to fix your problem.
No need to accept every new unstable udev ebuild from then on.
I just think for a "core" package that is foolish and just asking for problems  |
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drphibes
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Joined: 30 Nov 2004
Posts: 432
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| Posted: Sat Jul 02, 2005 7:29 pm Post subject: |
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| So your contribution, then, is solely to tell me that my actions were foolish for installing it in the first place? Okay.... thanks much. |
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Headrush
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Joined: 06 Nov 2003
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Location: Bizarro World
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| Posted: Sat Jul 02, 2005 7:35 pm Post subject: |
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| drphibes wrote: | | So your contribution, then, is solely to tell me that my actions were foolish for installing it in the first place? Okay.... thanks much. |
Easy. I'm trying to help you so you don't run into problems when you don't need to.
Take the foolish to mean it's a bad thing to do, nothing personal. |
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Lawless
l33t
Joined: 03 Nov 2003
Posts: 638
Location: Germany
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| Posted: Sat Jul 02, 2005 7:47 pm Post subject: |
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Saying 'it had been better not to do it' doesn't help cause it is already done...
As I said downgrading to the stable udev didn't solved the problem - my system is messed up - kernel panics when plugging in wlan stick, no recognition of other usb devices, udev needs nearly a minute to start (58 as well as 59...).
This is _not_ worth calling a 'testing' package.
I'm currently bootstrapping.....
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unz
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Joined: 28 Jul 2004
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| Posted: Sat Jul 02, 2005 7:50 pm Post subject: |
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hey man ... if no-one tryes ~x86 packages, we were still stucked @ vanilla-sources-0.5-r2 ...
... we got problems to solve ... let's brainstorming alltogether ... IMHO 
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Lawless
l33t
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Location: Germany
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| Posted: Sat Jul 02, 2005 7:57 pm Post subject: |
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My system is ~x86 cause I'm happy testing new packages (my home server which has the mentioned problems will now become a x86 system) but when somebody writes:
"Not quite sure if /etc/dev.d/ rules still run properly"
that sounds not like a testing package to me - not in the case of a package like udev on which the whole system depends on.
For me there is still a difference between testing and unstable at least with vital packages.
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Headrush
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Joined: 06 Nov 2003
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Location: Bizarro World
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| Posted: Sat Jul 02, 2005 7:59 pm Post subject: |
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| unz wrote: | hey man ... if no-one tryes ~x86 packages, we were still stucked @ vanilla-sources-0.5-r2 ...
... we got problems to solve ... let's brainstorming alltogether ... IMHO |
No one is saying not to run ~x86 packages. But if as you said: let's brainstorming alltogether, you need to read the changelog then if you're trying to help. I suspect several of the users aren't using this package to help test it. (Easy people, don't view everything as absolutes, this doesn't mean everyone!)
My point is not towards people that know how to test, but more towards noobies who are blindly unmasking all versions of packages and then wondering why it stops working.
I've wasted too many comments on this , back to helping in other threads.  |
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rm
Tux's lil' helper
Joined: 25 Oct 2004
Posts: 87
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| Posted: Sat Jul 02, 2005 9:30 pm Post subject: |
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so I did that foolish thing, ppl are talking 'bout
no problems so far - but it's a test installation, not my "normal" environment.
The whole thing is at the edge.
Udev/hotplug just "pauzes" for 3-4 secs when doing it's thing, then everything goes on.
I'll see the next few days - if I have time - what gives.
bye,
roel |
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drphibes
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Joined: 30 Nov 2004
Posts: 432
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| Posted: Sat Jul 02, 2005 11:26 pm Post subject: |
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They are thrashing out the bug upstream: | Quote: |
On Sat, Jul 02, 2005 at 12:06:46PM -0700, Greg KH wrote:
> On Sat, Jul 02, 2005 at 08:55:42AM -0700, Greg KH wrote:
> > On Fri, Jul 01, 2005 at 07:46:48PM -0700, Greg KH wrote:
> > > On Fri, Jul 01, 2005 at 06:28:16PM -0700, Phil K wrote:
> > > > Gentoo here, udev-059 causes the
> > > > /etc/hotplug.d/default/default.hotplug script to
> > > > complain bitterly at boot on all references to the
> > > > /dev/null device. I am using the hotplug 2004-09-23
> > > > script set.
> > >
> > > This is a gentoo specific issue, stick with bugs.gentoo.org for now.
> >
> > Hm, no, this might be a udev specific issue. I'm also now seeing this,
> > and in fact, can't get 2.6.12 to work at all with the latest udev (059).
> > Will debug more tonight...
>
> Kay, this seems to be caused by udevstart running the
> /etc/hotplug.d/defalt/default.hotplug link (points to the "load a
> module" hotplug stuff) before we've created anything in /dev. This is
> because of the udev_run_hotplugd program rule. But for udevstart, we
> don't want to run any hotplug stuff 
Sure, that's wrong.
> Hm, any hints on how to fix this loop?
I hope so:
ENV{UDEVD_EVENT}=="1", RUN+="/sbin/udev_run_hotplugd"
should prevent the hotplug stuff run, if it's not from the kernel.
Cheers,
Kay |
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arunarunarun
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Joined: 23 Dec 2004
Posts: 18
Location: India
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| Posted: Sun Jul 03, 2005 3:13 am Post subject: |
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| Quote: | Now I've noticed that when I plug in my wlan usb stick the whole system suddenly gets very slow - ifconfig does not work at all and after a while the system crashes completly...
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Lawless, this might be one thing that's making things slow - from the Changelog...
| Code: | o kernel 2.6.12 has the "detached_state" attribute removed from
sysfs, which was used to recognize sysfs population. We switched that
to wait for the "bus" link, which is only available in kernels after 2.6.11.
Running this udev version on older kernels may cause a short delay for
some events. |
Also, https://forums.gentoo.org/viewtopic-t-355137.html and https://bugs.gentoo.org/show_bug.cgi?id=97667 might shed some more light. |
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