[Bug 51188] New: test_user_shared_data() fails in ntdll:virtual

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51188

            Bug ID: 51188
           Summary: test_user_shared_data() fails in ntdll:virtual
           Product: Wine
           Version: 6.8
          Hardware: x86-64
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: ntdll
          Assignee: wine-bugs at winehq.org
          Reporter: fgouget at codeweavers.com

Created attachment 70061
  --> https://bugs.winehq.org/attachment.cgi?id=70061
AllFeatures traces

test_user_shared_data() fails on Windows 7 and 8.1 in ntdll:virtual.
https://test.winehq.org/data/patterns.html#ntdll:virtual

On Windows 7 there are two failures:
virtual.c:962: Test failed: Got unexpected AllFeatures[1] 128, expected 256.
virtual.c:966: Test failed: Got unexpected Features[1].Size 128, expected 256.

And on Windows 8.1 there is one:
virtual.c:957: Test failed: Got unexpected AllFeatureSize 0.

The test also has a special case which claims to be for Windows 10 Pro, though
in fact the broken behavior seems to describe the behavior of all Windows 10
versions:

        ok(xstate.AllFeatures[i] == feature_sizes[i]
                || broken(!xstate.AllFeatures[i]) /* win10pro */,


Given that this is related to processor features it's interesting to check what
processors are involved:
https://testbot.winehq.org/JobDetails.pl?Key=91253

w7u        Win7       IvyBridge-IBRS (QEmu)  fails
w7pro64    Win7       SandyBridge (QEmu)     success
w2008s64   Win2008    kvm64 (QEmu)           skipped (missing XState features)
cw-gtx560  Win8.1     i7-2600K               fails
cw-rx460   Win8.1     i7-2600K               fails
w8         Win8.1     kvm32 (QEmu 32-bit)    skipped (missing XState features)
w864       Win8.1     core2duo (QEmu)        skipped (missing XState features)
cw-rx460   Win10 1507 i7-2600K               broken (success) 
w1064v1507 Win10 1507 IvyBridge-IBRS (QEmu)  broken (success)
w1064v1607 Win10 1607 IvyBridge-IBRS (QEmu)  broken (success)
w1064v1709 Win10 1709 IvyBridge-IBRS (QEmu)  broken (success)
w1064v1809 Win10 1809 IvyBridge-IBRS (QEmu)  broken (success)
w1064v1909 Win10 1909 IvyBridge-IBRS (QEmu)  broken (success)
w10pro64   Win10 2004 IvyBridge-IBRS (QEmu)  broken (success)
w1064      Win10 2009 IvyBridge-IBRS (QEmu)  broken (success)

So it looks like there is no XState support on kvm32, kvm64 and core2duo
processors which explains why the TestBot gets no failure on Windows 8.1.

As for the half-size issue on w7u, this may be because that processor is 32-bit
and not 64-bit.

Finally, at best the comment for the broken(!xstate.AllFeatures[i]) is wrong,
or that broken statement itself is wrong given that it considers the behavior
of all Windows 10 versions to be broken.

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