fault-injection-developer

[Fault-injection-developer] RE: IRQ interceptor

[Wang, S. <sta...@in...>]

Hi, Arun
It is a little bit complex to use irq interceptor :(
The ficl doesn't support irq interceptor right now. Hence you must 
the fault set by hands. Following is a simple example, you can learn
how to use it by read fi_irq.c. (Kevin will add irq interceptor support
ASAP.)
 
example:
add fault set
$ cat "add $irq_num $dev_name $spurious_hertz $delay_hertz $delay_time" > /sys/fi/interceptors/irq/ctl
del fault set
$ cat "del" > /sys/fi/interceptors/irq/ctl
 
Hope it clarifies.
 
Stan
 

-----Original Message-----
From: arun [mailto:ar...@np...]
Sent: 2003-04-16 13:51
To: Wang, Stanley
Cc: SourceforgeFI mail list (E-mail); Gao, Kevin
Subject: IRQ interceptor


Hi Stanley/Kevin,
    The fith_utility/ficl_cmd.c  doesnt seems to handle IRQ interceptor. It only handle the "Trigger"
and for the rest errors are popped up. 
I tried the below which was from the fith_manual from CVS directory (might be old and obselete)

irq.fsml:
<?xml version="1.0" encoding="UTF-8" ?> 
<!-- $Id: fith.texi,v 1.12 2002/06/03 07:45:22 stanley Exp $ --> 
<!-- irq is the interrupt vector you want to intercept            --> 
 
<!-- devname is the device's name that be used in request_irq()   --> 
 
<!-- spurious_hertz="10" means one spurious IRQ is generated --> 
<!-- per 10 timer clicks                                          --> 
<!-- delay_hertz="10" means delay one IRQ per 10 times            --> 
<!-- delay_time="3" means the IRQ will be delayed 3 timer clicks  --> 
<fake_irq irq="4" 
           modname=”fith_dummy” 
    devname="dummy" 
    spurious_hertz="10" 
    delay_hertz="10" 
    delay_time="3" 
/>  

[root@xcast1hclt-ntl test]# ficl -i irq1.fsml 
Inserting irq1.fsml into fi_dm...
Document of the wrong type, FSML Namespace not found!
Can not parser out faultset from this file.


But this fsml file could be inserted using ficl  command.

I guess the IRQ interceptor should be given inside the TRIGGER tag... I tried 
that, but in vain (The ficl_cmd.c handles only the parameters for the PF interceptor)

I tried to "bk pull" to get the latest "fith tool", but there was no updation.... I just
want to clarify whether there is a workaround for this or I should update the ficl_cmd.c to
handle the IRQ interceptor parsing... Please pass on any document (if available) about 
this...

Thanks
-arun

[Fault-injection-developer] Re: IRQ interceptor

[arun <ar...@np...>]

Hi Stan,
Thanks a bunch , I could generate interrupts with the help of workaround
sent by you ( There's a
typo in the commands u sent, "cat" should be replaced with "echo").


Thanks
-arun

Wang, Stanley wrote:

> Hi, Arun
> It is a little bit complex to use irq interceptor :(
> The ficl doesn't support irq interceptor right now. Hence you must
> the fault set by hands. Following is a simple example, you can learn
> how to use it by read fi_irq.c. (Kevin will add irq interceptor support
> ASAP.)
> example:
> add fault set
> $ cat "add $irq_num $dev_name $spurious_hertz $delay_hertz $delay_time" > /sys/fi/interceptors/irq/ctl
> del fault set
> $ cat "del" > /sys/fi/interceptors/irq/ctl
> Hope it clarifies.
> Stan
>
>     -----Original Message-----
>     From: arun [mailto:ar...@np...]
>     Sent: 2003-04-16 13:51
>     To: Wang, Stanley
>     Cc: SourceforgeFI mail list (E-mail); Gao, Kevin
>     Subject: IRQ interceptor
>
>     Hi Stanley/Kevin,
>     The fith_utility/ficl_cmd.c doesnt seems to handle IRQ
>     interceptor. It only handle the "Trigger"
>     and for the rest errors are popped up.
>     I tried the below which was from the fith_manual from CVS
>     directory (might be old and obselete)
>
>     irq.fsml:
>     <?xml version="1.0" encoding="UTF-8" ?>
>     <!-- $Id: fith.texi,v 1.12 2002/06/03 07:45:22 stanley Exp $ -->
>     <!-- irq is the interrupt vector you want to intercept -->
>
>     <!-- devname is the device's name that be used in request_irq() -->
>
>     <!-- spurious_hertz="10" means one spurious IRQ is generated -->
>     <!-- per 10 timer clicks -->
>     <!-- delay_hertz="10" means delay one IRQ per 10 times -->
>     <!-- delay_time="3" means the IRQ will be delayed 3 timer clicks -->
>     <fake_irq irq="4"
>     modname=”fith_dummy”
>     devname="dummy"
>     spurious_hertz="10"
>     delay_hertz="10"
>     delay_time="3"
>     />
>
>     [root@xcast1hclt-ntl test]# ficl -i irq1.fsml
>     Inserting irq1.fsml into fi_dm...
>     Document of the wrong type, FSML Namespace not found!
>     Can not parser out faultset from this file.
>
>
>     But this fsml file could be inserted using ficl command.
>
>     I guess the IRQ interceptor should be given inside the TRIGGER
>     tag... I tried
>     that, but in vain (The ficl_cmd.c handles only the parameters for
>     the PF interceptor)
>
>     I tried to "bk pull" to get the latest "fith tool", but there was
>     no updation.... I just
>     want to clarify whether there is a workaround for this or I should
>     update the ficl_cmd.c to
>     handle the IRQ interceptor parsing... Please pass on any document
>     (if available) about
>     this...
>
>     Thanks
>     -arun
>