Hello, I don't see a scenario where doing a kmalloc inside an IRQ lock could generate a deadlock. Can someone give me one? Where can you safely use kmalloc? everywhere outside a lock? Thanks for your help Guillaume -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/