Hi! On Tue, Mar 21, 2006 at 10:26:42PM +0100, Jan Engelhardt wrote: >Hello list,
>I have found out that when linking a userspace application with -lpthread, >then for some reason, a device driver's read() routine suddenly has >IO_NDELAY set in flags. Bug? No. This is as it should be, because -lpthread does threads in *one* kernel process, so it has to intercept blocking operations so it can switch to another thread instead, or call select/poll/kevent if needed, so not all threads hang if *one* executes a blocking operation. Kind regards, Hannah.
