On Fri, Apr 29, 2011 at 6:46 PM, richard -rw- weinberger <richard.weinber...@gmail.com> wrote: > I fear you cannot use /dev/null (or any other non-tty file) as stdin. :-( > UML uses poll() to detect whether input is available from stdin. > As you can always read from /dev/null poll() doesn't block and > UML gets flooded with interrupts. > > Do you really need stdin set to /dev/null? > Can't you use a tool like screen to detach UML from your terminal?
Hmmmm... no :-( The purpose of this exercise is to launch a UML machine as a non-interactive job in a batch system, and this means it will run with stdin = /dev/null (or a file, which has the same `poll()` behavior). But I can still redirect stdin from a named FIFO and attach a "silent" process to it: mkfifo fake.stdin (sleep 365d > fake.stdin) & linux ... con=fd:0,fd:1 < fake.stdin This apparently works; I wonder whether there is a simpler/better solution. Thanks for your help! Riccardo ------------------------------------------------------------------------------ WhatsUp Gold - Download Free Network Management Software The most intuitive, comprehensive, and cost-effective network management toolset available today. Delivers lowest initial acquisition cost and overall TCO of any competing solution. http://p.sf.net/sfu/whatsupgold-sd _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
