Hi, Anybody please tell me: does wake_up_interruptible() sleep? I want to call wake_up_interruptible() inside an irq handler, and if it may sleep, I will need to run it from a tasklet instead of executing it directly. Many thanks. Hieu -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/