Hi all, I'm writing a driver which uses also kernel_threads and file operations (/dev and /proc). I was not able yet to find out why and when to use [un]lock_kernel() Can someone please give me a hint where to find some infos in using lock_kernel() for 2.2 and 2.4. What exactly is/must be protected by lock_kernel() ? Thanks, Armin - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/