Hi everyone,

First of all, it is the first time I am sending something to one of the 
kernel mail lists. So, if it is not the right place for that, if it is 
not the only place for that, or I am doing something wrong, or wherever, 
please, just let me know.

After a good time investigating why modprobe/rmmod pata_pdc2027x lots of 
times was driven to a kernel panic I found out that the problem was on 
scsi host layer (if I can call it like this).

In a brief explanation, every time a scsi host is allocated a shost 
structure get an host_no attribute assigned an as far as I can see it 
should be unique. The point is that this host_no value comes from a 
variable that is incremented every time a scsi host is allocated and in 
a first moment, we will not have two shost structs with the same 
host_no. But for instance, when this always incremented variable 
overflows, it does not work anymore and it can happen to have to 
different shost structures with the same host_no.

I made a patch that solves the problem in a very simple way, but I don't 
know how acceptable it is. I am sending it in attachment and any 
feedback will be welcome.

Thanks
Daniel Debonzi