spice-vdagentd hangs after client connect-disconnect-connect

[Eugene Chekanskiy <echekanskiy@xxxxxxxxx>]

First login to user are fine. I have spice-vdagentd and spice-agent running and working fine.

After logout I have following in spice-vdagent logs:

spice-vdagent[91749]: unhandled x11 event, type 33, window 647

XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":0.0"

      after 123 requests (123 known processed) with 1 events remaining.

and this in spice-vdagentd logs

січ 22 23:04:14 lx spice-vdagentd[91396]: mouse: syn
січ 22 23:04:14 lx spice-vdagentd[91396]: mouse-event: mon 0 963x148
січ 22 23:04:14 lx spice-vdagentd[91396]: mouse: abs-y 148
січ 22 23:04:18 lx spice-vdagentd[91396]: closed vdagent virtio channel
січ 22 23:04:18 lx spice-vdagentd[91396]: Active session: c54

After next login spice-vdagentd have following logs:

січ 22 23:04:18 lx spice-vdagentd[91396]: Active session: c54
січ 22 23:06:20 lx spice-vdagentd[91396]: Active session: c55
січ 22 23:06:22 lx spice-vdagentd[91396]: new client accepted: 0x555a9befb970, pid: 92724
січ 22 23:06:22 lx spice-vdagentd[91396]: Session for pid 92724: c55
січ 22 23:06:22 lx spice-vdagentd[91396]: 0x555a9befb970 sent version, arg1: 0, arg2: 0, size 7
січ 22 23:06:22 lx spice-vdagentd[91396]: 0x555a9befb970 is now the active session
січ 22 23:06:22 lx spice-vdagentd[91396]: 0x555a9befb970 sent monitors config, arg1: 0, arg2: 0, size 328
січ 22 23:06:22 lx spice-vdagentd[91396]: 0x555a9befb970 received guest xorg resolution, arg1: 1024, arg2: 768, size 16
січ 22 23:06:22 lx spice-vdagentd[91396]: uinput-update-size: 1024x768
січ 22 23:06:22 lx spice-vdagentd[91396]: screen 0: +0+0

After logout spice-vdagentd does not have new logs, and spice-vdagent printed following:

spice-vdagent[92724]: 0x55ab09dfcdc0 connected to /tmp/xspice-vdagent
spice-vdagent[92724]: Selection window: 41943041
spice-vdagent[92724]: Screen 0 1024x768+0+0
spice-vdagent[92724]: 0x55ab09dfcdc0 sent guest xorg resolution, arg1: 1024, arg2: 768, size 16
spice-vdagent[92724]: net_wm_name: "Xfwm4", has icons: 1
spice-vdagent[92724]: 0x55ab09dfcdc0 received version, arg1: 0, arg2: 0, size 7
spice-vdagent[92724]: 0x55ab09dfcdc0 received monitors config, arg1: 0, arg2: 0, size 328
spice-vdagent[92724]: from guest: 16, 1
spice-vdagent[92724]: received monitor 0 config 1920x979+0+0
spice-vdagent[92724]: after zeroing: 1, 1
spice-vdagent[92724]: received monitor 0 config 1920x979+0+0
spice-vdagent[92724]: Changing screen size to 1920x979
spice-vdagent[92724]: Root size of screen 0 changed to 1024x768 send 0
spice-vdagent[92724]: Root size of screen 0 changed to 1920x979 send 0
spice-vdagent[92724]: Screen 0 1920x979+0+0
spice-vdagent[92724]: 0x55ab09dfcdc0 sent guest xorg resolution, arg1: 1920, arg2: 979, size 16
spice-vdagent[92724]: unhandled x11 event, type 33, window 647
XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":0.0"
      after 101 requests (101 known processed) with 0 events remaining.

And spice-vdagentd strace http://pastebin.com/dUAB3xuS, hanged on open("/tmp/xspice-uinput", O_WRONLY.

Only restarting lightdm(with xspice) helps and next login will be fine. What this can be?

Thanks, Eugene.

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