Andrea Rossato wrote:
I'm running linux-2.6.0 on a toshiba portege r100.
sometimes, when I insert, with the system running, my Asus usb cdrom, the sistem locks.
if I force a reboot, powering it off, I can then insert the usb cdrom on the running system without problems: it's recognized and works properly.

I sort of solved my problem, that is due to acpi and swsuspend in conjunction with usb (but I do not know who's to be judged responsible).
Indeed, after some more tests I found out that the system locks if I insert the usb cdrom AFTER resuming the system from a software suspend (echo 3 > /proc/acpi/sleep).


Using this suspend script the problem does not appear:
---------------------------------------------
#!/bin/sh
rmmod uhci_hcd
rmmod ohci_hcd
rmmod ehci_hcd
rmmod usb_storage
clock --systohc
echo 3 > /proc/acpi/sleep

sleep 3
clock --hctosys
modprobe usb_storage
modprobe uhci_hcd
modprobe ohci_hcd
modprobe ehci_hcd
----------------------------------------------

What kind of problem can this be? Do you think I should submit a bug report to the kernel bugzilla? Is there a good soul who can give me some direction on how to get a better understanding of what the problem could be?
Could this be connected with this bug http://bugzilla.kernel.org/show_bug.cgi?id=1199 or could it be related with usb drivers?
Any suggestion would be greatly appreciated.
Thanks for your kind attention.
Andrea




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