Re: Live Migration of 32-bit Linux guest broken since 2.6.35-rc2

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On 06/08/2010 04:28 PM, Peter Lieven wrote:

i will retry the case later today and send info register output.
what is the recommended value for nx (and why)?

Enabled (so you get no-execute memory protection).

do you have a guideline which flags should be identical to ensure proper live migration? i would like to do an automatic compare before life migration to avoid crashes.

All of them [1]. If you have an asymmetric machine, you can disable those flags with the -cpu switch.

Note the default qemu cpu disables many flags, so if one machine has sse4.2 and the other doesn't, migration will still work without disabling anything.


[1] Rather, all flags understood by qemu and kvm that are enabled by the cpu model that you gave to qemu with -cpu.

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error compiling committee.c: too many arguments to function

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