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d84be02d69
The conditional memory barrier not only looks strange but actually is wrong. On s390x, I can reproduce interrupts via cpu_interrupt() not leading to a proper kick out of emulation every now and then. cpu_interrupt() is especially used for inter CPU communication via SIGP (esp. external calls and emergency interrupts). With this patch, I was not able to reproduce. (esp. no stalls or hangs in the guest). My setup is s390x MTTCG with 16 VCPUs on 8 CPU host, running make -j16. Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20171129191319.11483-1-david@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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