[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