[Bug 43501] all 32bit binaries produce "Illegal Instruction" after KVM migration from AMD -> Intel host

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https://bugzilla.kernel.org/show_bug.cgi?id=43501





--- Comment #2 from Avi Kivity <avi@xxxxxxxxxx>  2012-06-17 10:05:40 ---
Try the following command line (on both hosts)

  qemu -cpu phenom,vendor=AuthenticAMD

Note that 32-on-64 applications will suffer a performance penalty when using
cross-vendor migrations.  You can mitigate this by using vdso32=0 on the guest
kernel command line (but this is slower than the default, when not doing
cross-vendor migration).

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