On 2017-02-23 15:20:32 +0100, Vincent Lefevre wrote: > When I clicked on a button of FvwmButtons, FvwmButtons disappeared. > In the .xsession-errors file, I got at the same time: > > XIO: fatal IO error 4 (Interrupted system call) on X server ":0" > after 754 requests (754 known processed) with 0 events remaining. > > Nothing in the journalctl and Xorg logs at this time. > > I had the same problem in the past, on a different machine: > > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=796655 > > So, there seems to be really a bug, which can probably occur quite > rarely.
If I understand correctly, libX11 issues such an error when a system call is interrupted (EINTR); this can happen when the fvwm process receives a signal during a call to a libX11 function. -- Vincent Lefèvre <[email protected]> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
