Re: random wedges with 2.6.25-rc*

2008-02-19 Thread David Rees
On Feb 19, 2008 10:10 AM, Pierre Ossman <[EMAIL PROTECTED]> wrote:
> Somewhere post 2.6.24, the kernel started getting very
> temperamentful. I experience random hangs and wedges very often.

FWIW, on my Fedora 8 Dell Vostro 1000 notebook, ever since updating to
kernel 2.6.23.15-137 I am getting frequent udev startup lockups on
boot.  Resetting and rebooting will get things past udev startup some
of the time, so it doesn't always hang. I'd guess it hangs about half
the time. Once past udev startup, everything works fine, no hangs. I
haven't seen this on a half dozen other desktops/servers running
Fedora 8.

Aside from that, everything else works fine. The previous kernel was
2.6.23.14-115, so I suspect that if these were related, the changes
were backported into the 2.6.23 stable tree in 2.6.23.15?

You can view the reported list of differences between the two kernels
in the package announcement:
https://www.redhat.com/archives/fedora-package-announce/2008-February/msg00255.html

-Dave
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Re: random wedges with 2.6.25-rc*

2008-02-19 Thread Alistair John Strachan
On Tuesday 19 February 2008 18:10:35 Pierre Ossman wrote:
> Primarily, the udev startup locks up. If I abort it, it just locks up on
> more or less every action after that. Some quick debugging showed that I
> had a whole bunch of modprobe processes sitting around. The new
> CONFIG_USB_ANNOUNCE_NEW_DEVICES setting makes every startup of udev lock up
> consistently on at least two machines. It does not seem to be the root of
> the problem as disabling the option just makes the bug very unlikely.

You're not alone, I'm seeing these intermittent hangs at init time on Debian 
unstable at:

"Waiting for /dev to be fully populated" (udevsettle)

"Loading kernel modules" (which I assume is modprobe)

But, I'm not seeing any hangs in X11 (yet).

-- 
Cheers,
Alistair.

137/1 Warrender Park Road, Edinburgh, UK.
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Re: random wedges with 2.6.25-rc*

2008-02-19 Thread Pierre Ossman
On Tue, 19 Feb 2008 12:55:13 -0500
Jeff Garzik <[EMAIL PROTECTED]> wrote:

> Pierre Ossman wrote:
> > 
> > Anyone else seeing these problems? Someone should as I've seen the problem 
> > on both a Lenovo and a HP laptop here.
> 
> 
> I'm definitely seeing lockups here too.  2.6.24 is fine, 2.6.24-rc1 or 
> -rc2 locks up a minute or so after a successful boot (either to console 
> or to X).
> 
> Does the following shed any light?
> 
> http://lkml.org/lkml/2008/2/17/78
> 

That would explain the lockups in X as the network has been active at those 
times. But it would be odd if it affects the startup of udev (most likely 
module loading).

Rgds
-- 
 -- Pierre Ossman

  Linux kernel, MMC maintainerhttp://www.kernel.org
  PulseAudio, core developer  http://pulseaudio.org
  rdesktop, core developer  http://www.rdesktop.org
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Re: random wedges with 2.6.25-rc*

2008-02-19 Thread Jeff Garzik

Pierre Ossman wrote:

Somewhere post 2.6.24, the kernel started getting very temperamentful. I 
experience random hangs and wedges very often.

Primarily, the udev startup locks up. If I abort it, it just locks up on more 
or less every action after that. Some quick debugging showed that I had a whole 
bunch of modprobe processes sitting around. The new 
CONFIG_USB_ANNOUNCE_NEW_DEVICES setting makes every startup of udev lock up 
consistently on at least two machines. It does not seem to be the root of the 
problem as disabling the option just makes the bug very unlikely.

I've also seen a couple of lockups in X. Might be a different expression of the 
same bug, but the effect here is a complete wedge of the user interface. It 
seems the rest of the machine also locks up, but I haven't confirmed this.

Anyone else seeing these problems? Someone should as I've seen the problem on 
both a Lenovo and a HP laptop here.



I'm definitely seeing lockups here too.  2.6.24 is fine, 2.6.24-rc1 or 
-rc2 locks up a minute or so after a successful boot (either to console 
or to X).


Does the following shed any light?

http://lkml.org/lkml/2008/2/17/78

Jeff



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Re: random wedges with 2.6.25-rc*

2008-02-19 Thread Jeff Garzik

Pierre Ossman wrote:

Somewhere post 2.6.24, the kernel started getting very temperamentful. I 
experience random hangs and wedges very often.

Primarily, the udev startup locks up. If I abort it, it just locks up on more 
or less every action after that. Some quick debugging showed that I had a whole 
bunch of modprobe processes sitting around. The new 
CONFIG_USB_ANNOUNCE_NEW_DEVICES setting makes every startup of udev lock up 
consistently on at least two machines. It does not seem to be the root of the 
problem as disabling the option just makes the bug very unlikely.

I've also seen a couple of lockups in X. Might be a different expression of the 
same bug, but the effect here is a complete wedge of the user interface. It 
seems the rest of the machine also locks up, but I haven't confirmed this.

Anyone else seeing these problems? Someone should as I've seen the problem on 
both a Lenovo and a HP laptop here.



I'm definitely seeing lockups here too.  2.6.24 is fine, 2.6.24-rc1 or 
-rc2 locks up a minute or so after a successful boot (either to console 
or to X).


Does the following shed any light?

http://lkml.org/lkml/2008/2/17/78

Jeff



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Re: random wedges with 2.6.25-rc*

2008-02-19 Thread Pierre Ossman
On Tue, 19 Feb 2008 12:55:13 -0500
Jeff Garzik [EMAIL PROTECTED] wrote:

 Pierre Ossman wrote:
  
  Anyone else seeing these problems? Someone should as I've seen the problem 
  on both a Lenovo and a HP laptop here.
 
 
 I'm definitely seeing lockups here too.  2.6.24 is fine, 2.6.24-rc1 or 
 -rc2 locks up a minute or so after a successful boot (either to console 
 or to X).
 
 Does the following shed any light?
 
 http://lkml.org/lkml/2008/2/17/78
 

That would explain the lockups in X as the network has been active at those 
times. But it would be odd if it affects the startup of udev (most likely 
module loading).

Rgds
-- 
 -- Pierre Ossman

  Linux kernel, MMC maintainerhttp://www.kernel.org
  PulseAudio, core developer  http://pulseaudio.org
  rdesktop, core developer  http://www.rdesktop.org
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
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Please read the FAQ at  http://www.tux.org/lkml/


Re: random wedges with 2.6.25-rc*

2008-02-19 Thread Alistair John Strachan
On Tuesday 19 February 2008 18:10:35 Pierre Ossman wrote:
 Primarily, the udev startup locks up. If I abort it, it just locks up on
 more or less every action after that. Some quick debugging showed that I
 had a whole bunch of modprobe processes sitting around. The new
 CONFIG_USB_ANNOUNCE_NEW_DEVICES setting makes every startup of udev lock up
 consistently on at least two machines. It does not seem to be the root of
 the problem as disabling the option just makes the bug very unlikely.

You're not alone, I'm seeing these intermittent hangs at init time on Debian 
unstable at:

Waiting for /dev to be fully populated (udevsettle)

Loading kernel modules (which I assume is modprobe)

But, I'm not seeing any hangs in X11 (yet).

-- 
Cheers,
Alistair.

137/1 Warrender Park Road, Edinburgh, UK.
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


Re: random wedges with 2.6.25-rc*

2008-02-19 Thread David Rees
On Feb 19, 2008 10:10 AM, Pierre Ossman [EMAIL PROTECTED] wrote:
 Somewhere post 2.6.24, the kernel started getting very
 temperamentful. I experience random hangs and wedges very often.

FWIW, on my Fedora 8 Dell Vostro 1000 notebook, ever since updating to
kernel 2.6.23.15-137 I am getting frequent udev startup lockups on
boot.  Resetting and rebooting will get things past udev startup some
of the time, so it doesn't always hang. I'd guess it hangs about half
the time. Once past udev startup, everything works fine, no hangs. I
haven't seen this on a half dozen other desktops/servers running
Fedora 8.

Aside from that, everything else works fine. The previous kernel was
2.6.23.14-115, so I suspect that if these were related, the changes
were backported into the 2.6.23 stable tree in 2.6.23.15?

You can view the reported list of differences between the two kernels
in the package announcement:
https://www.redhat.com/archives/fedora-package-announce/2008-February/msg00255.html

-Dave
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
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Please read the FAQ at  http://www.tux.org/lkml/