RFR: JDK-8073147 RPI board hungs on execution GetTriggerTgests_gpin30 test from DIO VTS

[Sergey Nazarkin]

IMO it is better to show last error for ALL ERROR/CRITICAL messages

/Sergey

On 18.02.2015 16:24, alexey karaksin wrote:
>
> issue: https://bugs.openjdk.java.net/browse/JDK-8073147
> review: http://cr.openjdk.java.net/~amironov/8073147/
>
> the issue is hard to reproduce, the changes are about printing error 
> cause while dealing with GPIO files is /sys filesystem.