[Vm-dev] Fwd: [Pharo-dev] Pharo 7 Repeatable crash: XIO: fatal IO error 14 (Bad address) on X server ":0"

Martin McClure martin at hand2mouse.com
Fri Mar 2 19:47:35 UTC 2018


On 03/02/2018 08:23 AM, Eliot Miranda wrote:
>>> That's strange.  Can you put a breakpoint in write or exit so that gdb does stop rather than exit?  Martin, if I were trying t debug this I would be trying to get the error to occur within gdb said I could poke around.  I don't know any better way if solving problems like this than by first because no able to examine the exception in situ.  I get that it's frustrating but there's no magic bullet.  One has the keep trying until one can find out what caused the crash.
>>>
>> By putting a breakpoint in exit I was able to get the stack below. I
>> hope this gives you a clue as to where to look next. Once again, what
>> I'm doing at the point of failure is dragging the corner of the X
>> window to resize it larger.
>>
>
> Great.  It's a problem in the X server, not in the VM (even if it's
> the VM's fault).  So any X11 experts want to weigh in on how to
> proceed?  I hate to say it but I would at least try restarting the X
> server.

I'm afraid that the problem does reproduce on a different system,
configured similarly but with a slightly newer X server version
(xorg-server-1.19.5-r1) that has been rebooted much more recently.

-Martin



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