* call_usermodehelper returns a negative value during boot up
@ 2007-02-15 13:53 Babu, Narendra (GE Healthcare)
2007-02-15 19:39 ` Greg KH
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: Babu, Narendra (GE Healthcare) @ 2007-02-15 13:53 UTC (permalink / raw)
To: linux-hotplug
Hi List,
I am trying to use the hotplug on my system running kernel version 2.4
Hotplug works fine once the system boot up.
But if we attach a USB device and boot the system , the
call_usermodehelper() returns a negative value.
Please let me know the possible reasons and if there are any solutions
for the same.
Thanks,
Narendra Babu H.C.
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: call_usermodehelper returns a negative value during boot up
2007-02-15 13:53 call_usermodehelper returns a negative value during boot up Babu, Narendra (GE Healthcare)
@ 2007-02-15 19:39 ` Greg KH
2007-02-16 6:24 ` Babu, Narendra (GE Healthcare)
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: Greg KH @ 2007-02-15 19:39 UTC (permalink / raw)
To: linux-hotplug
On Thu, Feb 15, 2007 at 07:21:06PM +0530, Babu, Narendra (GE Healthcare) wrote:
> Hi List,
>
>
> I am trying to use the hotplug on my system running kernel version 2.4
> Hotplug works fine once the system boot up.
>
> But if we attach a USB device and boot the system , the
> call_usermodehelper() returns a negative value.
When does this happen? Before userspace starts up?
And what is the value returned?
And what exact kernel version are you using?
thanks,
greg k-h
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^ permalink raw reply [flat|nested] 8+ messages in thread
* RE: call_usermodehelper returns a negative value during boot up
2007-02-15 13:53 call_usermodehelper returns a negative value during boot up Babu, Narendra (GE Healthcare)
2007-02-15 19:39 ` Greg KH
@ 2007-02-16 6:24 ` Babu, Narendra (GE Healthcare)
2007-02-16 7:03 ` Greg KH
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: Babu, Narendra (GE Healthcare) @ 2007-02-16 6:24 UTC (permalink / raw)
To: linux-hotplug
When does this happen? Before userspace starts up?
>>> This happens before the userspace starts up means prior to INIT:
Entering runlevel....
>>> So I feel it is not getting the hotplug script.
>>> Is there any way to detect USB devices only after user space starts
(during boot process)
And what is the value returned?
>>> The value it returns is 0xfffffffe
And what exact kernel version are you using?
>>> The kernel version is 2.4.20.
Thanks,
Narendra
-----Original Message-----
From: Greg KH [mailto:greg@kroah.com]
Sent: Friday, February 16, 2007 1:09 AM
To: Babu, Narendra (GE Healthcare)
Cc: linux-hotplug-devel@lists.sourceforge.net
Subject: Re: call_usermodehelper returns a negative value during boot up
On Thu, Feb 15, 2007 at 07:21:06PM +0530, Babu, Narendra (GE Healthcare)
wrote:
> Hi List,
>
>
> I am trying to use the hotplug on my system running kernel version 2.4
> Hotplug works fine once the system boot up.
>
> But if we attach a USB device and boot the system , the
> call_usermodehelper() returns a negative value.
When does this happen? Before userspace starts up?
And what is the value returned?
And what exact kernel version are you using?
thanks,
greg k-h
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: call_usermodehelper returns a negative value during boot up
2007-02-15 13:53 call_usermodehelper returns a negative value during boot up Babu, Narendra (GE Healthcare)
2007-02-15 19:39 ` Greg KH
2007-02-16 6:24 ` Babu, Narendra (GE Healthcare)
@ 2007-02-16 7:03 ` Greg KH
2007-02-16 7:46 ` Babu, Narendra (GE Healthcare)
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: Greg KH @ 2007-02-16 7:03 UTC (permalink / raw)
To: linux-hotplug
On Fri, Feb 16, 2007 at 11:42:49AM +0530, Babu, Narendra (GE Healthcare) wrote:
>
> When does this happen? Before userspace starts up?
>
> >>> This happens before the userspace starts up means prior to INIT:
> Entering runlevel....
> >>> So I feel it is not getting the hotplug script.
That's because there is no userspace program to run at that time :)
> >>> Is there any way to detect USB devices only after user space starts
> (during boot process)
>
> And what is the value returned?
>
> >>> The value it returns is 0xfffffffe
Which is -2, or -ENOENT which means there is no file found to run.
> And what exact kernel version are you using?
>
> >>> The kernel version is 2.4.20.
What happens if you use the latest 2.6 kernel version? No one except a
few companies supports 2.4.20 anymore. You are on your own if you use
that kernel version.
good luck,
greg k-h
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^ permalink raw reply [flat|nested] 8+ messages in thread
* RE: call_usermodehelper returns a negative value during boot up
2007-02-15 13:53 call_usermodehelper returns a negative value during boot up Babu, Narendra (GE Healthcare)
` (2 preceding siblings ...)
2007-02-16 7:03 ` Greg KH
@ 2007-02-16 7:46 ` Babu, Narendra (GE Healthcare)
2007-02-17 2:06 ` Greg KH
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: Babu, Narendra (GE Healthcare) @ 2007-02-16 7:46 UTC (permalink / raw)
To: linux-hotplug
Hi Greg,
Thanks for the reply.
We are not in a position to move immediately for Kernel version 2.6.
Is there any difference in boot process of version 2.6 and 2.4 ?
Can you provide us some inputs on how it is handled in kernel version
2.6
Thanks,
Narendra
-----Original Message-----
From: Greg KH [mailto:greg@kroah.com]
Sent: Friday, February 16, 2007 12:34 PM
To: Babu, Narendra (GE Healthcare)
Cc: linux-hotplug-devel@lists.sourceforge.net
Subject: Re: call_usermodehelper returns a negative value during boot up
On Fri, Feb 16, 2007 at 11:42:49AM +0530, Babu, Narendra (GE Healthcare)
wrote:
>
> When does this happen? Before userspace starts up?
>
> >>> This happens before the userspace starts up means prior to INIT:
> Entering runlevel....
> >>> So I feel it is not getting the hotplug script.
That's because there is no userspace program to run at that time :)
> >>> Is there any way to detect USB devices only after user space
> >>> starts
> (during boot process)
>
> And what is the value returned?
>
> >>> The value it returns is 0xfffffffe
Which is -2, or -ENOENT which means there is no file found to run.
> And what exact kernel version are you using?
>
> >>> The kernel version is 2.4.20.
What happens if you use the latest 2.6 kernel version? No one except a
few companies supports 2.4.20 anymore. You are on your own if you use
that kernel version.
good luck,
greg k-h
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: call_usermodehelper returns a negative value during boot up
2007-02-15 13:53 call_usermodehelper returns a negative value during boot up Babu, Narendra (GE Healthcare)
` (3 preceding siblings ...)
2007-02-16 7:46 ` Babu, Narendra (GE Healthcare)
@ 2007-02-17 2:06 ` Greg KH
2007-02-23 19:37 ` Babu, Narendra (GE Healthcare)
2007-02-23 23:25 ` Greg KH
6 siblings, 0 replies; 8+ messages in thread
From: Greg KH @ 2007-02-17 2:06 UTC (permalink / raw)
To: linux-hotplug
On Fri, Feb 16, 2007 at 01:04:17PM +0530, Babu, Narendra (GE Healthcare) wrote:
> Hi Greg,
>
> Thanks for the reply.
> We are not in a position to move immediately for Kernel version 2.6.
>
> Is there any difference in boot process of version 2.6 and 2.4 ?
Oh yes, quite a bit.
> Can you provide us some inputs on how it is handled in kernel version
> 2.6
Taking a look at the code would be the best way to learn the
differences.
thanks,
greg k-h
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^ permalink raw reply [flat|nested] 8+ messages in thread
* RE: call_usermodehelper returns a negative value during boot up
2007-02-15 13:53 call_usermodehelper returns a negative value during boot up Babu, Narendra (GE Healthcare)
` (4 preceding siblings ...)
2007-02-17 2:06 ` Greg KH
@ 2007-02-23 19:37 ` Babu, Narendra (GE Healthcare)
2007-02-23 23:25 ` Greg KH
6 siblings, 0 replies; 8+ messages in thread
From: Babu, Narendra (GE Healthcare) @ 2007-02-23 19:37 UTC (permalink / raw)
To: linux-hotplug
Hi
Now I have seen a situation where call_usermodehelper returns a negative
value after the user space comes up.
Any Idea why it fails here......
Thanks,
Narendra
-----Original Message-----
From: Greg KH [mailto:greg@kroah.com]
Sent: Friday, February 16, 2007 12:34 PM
To: Babu, Narendra (GE Healthcare)
Cc: linux-hotplug-devel@lists.sourceforge.net
Subject: Re: call_usermodehelper returns a negative value during boot up
On Fri, Feb 16, 2007 at 11:42:49AM +0530, Babu, Narendra (GE Healthcare)
wrote:
>
> When does this happen? Before userspace starts up?
>
> >>> This happens before the userspace starts up means prior to INIT:
> Entering runlevel....
> >>> So I feel it is not getting the hotplug script.
That's because there is no userspace program to run at that time :)
> >>> Is there any way to detect USB devices only after user space
> >>> starts
> (during boot process)
>
> And what is the value returned?
>
> >>> The value it returns is 0xfffffffe
Which is -2, or -ENOENT which means there is no file found to run.
> And what exact kernel version are you using?
>
> >>> The kernel version is 2.4.20.
What happens if you use the latest 2.6 kernel version? No one except a
few companies supports 2.4.20 anymore. You are on your own if you use
that kernel version.
good luck,
greg k-h
-------------------------------------------------------------------------
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: call_usermodehelper returns a negative value during boot up
2007-02-15 13:53 call_usermodehelper returns a negative value during boot up Babu, Narendra (GE Healthcare)
` (5 preceding siblings ...)
2007-02-23 19:37 ` Babu, Narendra (GE Healthcare)
@ 2007-02-23 23:25 ` Greg KH
6 siblings, 0 replies; 8+ messages in thread
From: Greg KH @ 2007-02-23 23:25 UTC (permalink / raw)
To: linux-hotplug
On Sat, Feb 24, 2007 at 12:55:33AM +0530, Babu, Narendra (GE Healthcare) wrote:
> Hi
>
> Now I have seen a situation where call_usermodehelper returns a negative
> value after the user space comes up.
> Any Idea why it fails here......
You are going to have to provide a lot more information here.
Also remember, 2.4 really isn't supported anymore by the community. Try
asking the vendor who provided it to you.
good luck,
greg k-h
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^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2007-02-23 23:25 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2007-02-15 13:53 call_usermodehelper returns a negative value during boot up Babu, Narendra (GE Healthcare)
2007-02-15 19:39 ` Greg KH
2007-02-16 6:24 ` Babu, Narendra (GE Healthcare)
2007-02-16 7:03 ` Greg KH
2007-02-16 7:46 ` Babu, Narendra (GE Healthcare)
2007-02-17 2:06 ` Greg KH
2007-02-23 19:37 ` Babu, Narendra (GE Healthcare)
2007-02-23 23:25 ` Greg KH
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