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Subject: Re: call_usermodehelper hang
From: Lee Revell <rlrevell@joe-job.com>
To: Payasam Manohar <pmanohar@lantana.cs.iitm.ernet.in>
Cc: linux-kernel@vger.kernel.org
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Date: Fri, 25 Feb 2005 13:06:08 -0500
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On Fri, 2005-02-25 at 22:47 +0530, Payasam Manohar wrote:
> hai all,
>     I want to call a user program(script) from linux kernel.
> I am using Redhat linux 9( kernel version 2.4.20-8). With the help of 
> call_usermodehelper I am calling the user level program from one of the 
> kernel driver. I am setting the parameters correctly.
>    int call_usermodehelper(char *path, char *argv, char *envp);
> 
>   The system is hanging after giving a call trace and the error
>     Code:
>    <0> Kernel Panic : Aiee,Killing interrupt handler
>          In interrupt handler- not syncing.
> 
> Any help is welcome.

I don't think you can do that from interrupt context.

Lee