I met the similar problem twice.

Environment is following.
CPU: SkyLake(core i5 6500TE)
Distribution: debian(customised)
Kernel: 4.14.40
Mesa: 17.3.9
libdrm: 2.4.89

----
[197410.815921] [drm] GPU HANG: ecode 9:0:0x85dffffb, in drawingproc [2559],
reason: Hang on rcs0, action: reset
[197410.815927] i915 0000:00:02.0: Resetting rcs0 after gpu hang
[197418.809902] i915 0000:00:02.0: Resetting rcs0 after gpu hang
[197426.809904] i915 0000:00:02.0: Resetting rcs0 after gpu hang
[197434.813910] i915 0000:00:02.0: Resetting rcs0 after gpu hang
i965: Failed to submit batchbuffer: Input/output error
[197442.813908] i915 0000:00:02.0: Resetting rcs0 after gpu hang
----

"i965: Failed to submit batchbuffer: Input/output error" was appeared in stderr
by mesa linked by drawingproc.