I compiled my kernel then installed all drivers (ati,ipw2200... ) two days ago
from the day from yesterday i opened my computer 3 or 4 time there was noting wrong
but today it freezed at activating hotplug then i rebooted my machine and this time it opened
what do you think abaout my problem
(I dont login as root from the first day i did not change anything abaut the system!!)

You are not alone, hotplug completely locks my laptop at boot. I even passed "nohotplugd" to the kernel, but ended with a lock up too. I am back to reinstalling Slackware with 2.4 kernel and no hotplug till I have solved the problem.

But i have to use a 2.6 series kernel because of my wireless hardware
And i thing hotplug is a realy big problem that have to be solved

today i had a kernel panic error then rebooted my laptop then it booted normaly
what is the problem ?!!! iam really anxious about that

Finally, I'm not the only one who thinks hotplug is a problem. As far as I'm concerned, hotplug should be due for a major revamp, or I guess someone has to find a better way of implementing hardware detection under linux, but I suppose until that time, hotplug can always be disabled, as an alternative. In my case, I run a desktop, so I never had hotplug freeze on me, however it takes almost a minute or so just for it to finish, and thats why I decided to just turn it off. Sure, after doing that, much of my devices did not work, but that was easily remedied in uncommenting a few things in rc.modules, and re-running alsaconf. Sure, if you want to add a new piece of hardware, this also might be a setback, but compared to 1+ minutes of boot time, and possible crashes with hotplug, its a small price to pay.... and thats my

did you tried to make the hotplog script non-executable
in root