On Mon, 2016-07-11 at 06:46 -0700, Vincent Lefevre wrote: > On 2016-07-11 13:03:55 +0200, Yves-Alexis Perez wrote: > > So it seems stdin is closed for the second login. Could it break dbus- > > launch/dbus-daemon somehow? > > In general, closing stdin is a bad idea, at least under Linux, > because if a new file needs to be opened by the process or one of > its descendants, fd 0 will be reused (while it is not expected to > correspond to stdin), and this may clash with other functions that > try to read stdin (= fd 0)...
Well, lightdm is not explicitely closing /dev/stdin. And adding checks for (fd == 0) before every close() call might not be the best practice either. Regards, -- Yves-Alexis
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