On: AWS issues unavoidable reboot schedules with short...

[rrggrr]

This feels like a critical security or stability update.

[ianlevesque → rrggrr]

XSA-108 perhaps? http://xenbits.xen.org/xsa/

AWS is certainly large enough to have access to an embargoed update.

[akerl_ → ianlevesque]

The list of people receiving pre-disclosure access is public:

http://www.xenproject.org/security-policy.html