On Thu, May 25, 2017 at 10:28:38AM +0200, Fuzzey, Martin wrote: > 1) Android init calls write() on the sysfs file > 2) The sysfs .store() callback registered by a driver is called > 3) The driver calls request_firmware() > 4) request_firmware() sends the firmware load request to userspace and > calls wait_for_completion_interruptible() Martin, just for completeness on documenting on the commit log of the next swait proposed fix for this -- what signal did the process get from which you note the child dies below ? Exactly what in Android sent this signal ? > 5) A child dies and raises SIGCHLD > 6) wait_for_completion_interruptible() returns -ERESTARTSYS due to the signal Luis
