I've built a dom0 kernel 4.14 with SMP support. The dom0 kernel crashes when I'm downloading a large file on host. It does not crash if I have nosmp boot option on xen command line.
my .config SMP options are [root@f6029920339a wip-kernel-4.14.78]# grep SMP .config CONFIG_X86_64_*SMP*=y CONFIG_GENERIC_*SMP*_IDLE_THREAD=y CONFIG_*SMP*=y CONFIG_XEN_PV_*SMP*=y CONFIG_XEN_PVHVM_*SMP*=y # CONFIG_MAX*SMP* is not set CONFIG_PM_SLEEP_*SMP*=y CONFIG_SCSI_SAS_HOST_*SMP*=y While comparing it to earlier kernels the options CONFIG_XEN_PV_*SMP*=y CONFIG_XEN_PVHVM_*SMP*=y are newly introduced. Does xen need any update to better handle them? My xen versions is : 4.7.6
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