Is i686 the minimum required for HotSpot on x86?

Christian Thalinger christian.thalinger at
Tue Mar 29 07:35:12 PDT 2011

On Mar 29, 2011, at 4:26 PM, Dr Andrew John Hughes wrote:
> We've just had a bug report for IcedTea which suggests that
> HotSpot fails on any x86 platform below i686.
> The report is:
> and shows a failure caused by an attempt by the JIT to emit
> an instruction which isn't present on i586.
> Does HotSpot require i686 as a minimum? Or is there something
> else at fault here?

There is a switch -XX:+Use486InstrsOnly but I have an open bug for that one:

6808665: Use486InstrsOnly aborts 32-bit VM

-- Christian

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