[Bug 33788] New: The VMs clock is off

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=33788

             Bug #: 33788
           Summary: The VMs clock is off
           Product: Wine-Testbot
           Version: unspecified
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: unknown
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: fgouget at codeweavers.com
    Classification: Unclassified


The issue is that WineTestBot restores running VM snapshots. So when these
start their clock is still set to whenever the snapshot was taken which can be
months ago. VMware had a special driver that took care of updating the VM clock
automatically when starting the snapshot but QEmu/KVM does not.

The VMs may synchronize with an Internet clock eventually depending on thet
particular Windows' default configuration and how often they do so.

This has an impact on some tests and causes failures. My understanding is that
in particular the certificate tests check that some online certificates have
expired. But obviously if the VM's clock is still running months behind it may
not consider the certificate to have expired yet.

These tests should arguably compare the system clock with the certificate
expiration date and realize that the certificate has not expired yet. However
that's not the point of the test.

The solution is to force the VM clock to resynchronize by running a special
command when we start the snapshot. These commands depend on the Windows
version :-(

Windows >= 2003
w32tm /config /syncfromflags:manual
/manualpeerlist:0.pool.ntp.org,1.pool.ntp.org,2.pool.ntp.org,3.pool.ntp.org

Windows XP
net time /setsntp:"0.pool.ntp.org 1.pool.ntp.org 2.pool.ntp.org"

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