host crash - guest_4.o#sh_page_fault__guest
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 A quick update. 
 This morning we had another crash. Same host, same guest involved.
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 You can try this workaround: boot your host with the "pcid=0" parameter. This will likely have an impact on performance but should avoid the crash. Reference: https://lists.xenproject.org/archives/html/xen-devel/2019-01/msg00006.html 
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 Security advisories have just been published on http://xenbits.xen.org/xsa/ The host crash you experienced is probably related to http://xenbits.xen.org/xsa/advisory-294.html We will provide updated Xen packages as soon as they are ready. 
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 Thank You for the update. 
