[Disksim-users] Crash at ioqueue_remove_from_subqueue

[Yinliang Yue]

Hi Bhushan,

I don't know the specific runtime environment of your testing, so I can't
give you the accurate suggestion.

I think you'd better add a new request via addintq() function.

Also, you'd better check the complete of every subrequest in
iodriver_access_complete(),  and the complete of every logical request in
logorg_mapcomplete().

Furthermore, you'd better check the .parv file you used and adjust the queue
parameters.


I hope you find these suggestions useful.


Yinliang Yue
HUST, China



On 2/23/09, Bhushan <mohan at cs.virginia.edu> wrote:
>
> Hi,
> Disksim crashes at ioqueue_remove_from_subqueue() when used along with ssd
> add-on. This function removes tmp from the queue and resets the pointer in
> the double linked list. But tmp->prev is NULL because of which disksim
> crashes at tmp->prev->next. while accessing tmp->prev. Also, tmp->prev is
> NULL for the entire tmp list.
>
> Can someone provide the guidelines as to when we should be calling
> ioqueue_insert_new_request() and when we should be calling
> ioqueue_remove_from_subqueue() assuming that the requests are serviced in
> FCFS. In this way, I can find out if I am incorrectly calling any of the two
> functions mentioned above.
>
> Thanks!
>
> --
> Regards,
> Bhushan.
>
> _______________________________________________
> Disksim-users mailing list
> Disksim-users at ece.cmu.edu
> https://sos.ece.cmu.edu/mailman/listinfo/disksim-users
>
>


-- 
Best regards!

Yinliang Yue
HUST, Wuhan, China
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.andrew.cmu.edu/pipermail/disksim-users/attachments/20090223/f99e9453/attachment.html>