[Bug 49624] New: Protocol error: process 0020: recvmsg: Message too long on mac OS

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=49624

            Bug ID: 49624
           Summary: Protocol error: process 0020: recvmsg: Message too
                    long on mac OS
           Product: Wine
           Version: unspecified
          Hardware: x86
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: wine-bugs at winehq.org
          Reporter: stefan at codeweavers.com
      Distribution: ---

When running CEF (32 or 64 bit version) on Mac OS Wine crashes with the
following output:

grey:Release stefan$ ~/build/wine/wine cefclient.exe -no-sandbox -disable-gpu
0078:err:ntoskrnl:ZwLoadDriver failed to create driver
L"\\Registry\\Machine\\System\\CurrentControlSet\\Services\\wineusb": c0000142
003c:fixme:service:scmdatabase_autostart_services Auto-start service L"wineusb"
failed to start: 1114
0024:err:winediag:SECUR32_initNTLMSP ntlm_auth was not found or is outdated.
Make sure that ntlm_auth >= 3.0.25 is in your path. Usually, you can find it in
the winbind package of your distribution.
0024:fixme:process:SetProcessDEPPolicy (3): stub
0024:fixme:heap:RtlSetHeapInformation 0x0 1 0x0 0 stub
0024:fixme:ntdll:EtwEventRegister ({d2d578d9-2936-45b6-a09f-30e32715f42d},
0x11ddcb30, 0x16211728, 0x16211728) stub.
0024:fixme:nls:GetThreadPreferredUILanguages 00000038, 0x31f984, 0x0 0x31f980
0024:fixme:nls:get_dummy_preferred_ui_language (0x38 0x31f984 0x0 0x31f980)
returning a dummy value (current locale)
0024:fixme:nls:GetThreadPreferredUILanguages 00000038, 0x31f984, 0x15733c0
0x31f980
0024:fixme:nls:get_dummy_preferred_ui_language (0x38 0x31f984 0x15733c0
0x31f980) returning a dummy value (current locale)
0024:fixme:ntdll:NtQuerySystemInformation info_class
SYSTEM_PERFORMANCE_INFORMATION
Protocol error: process 0020: recvmsg: Message too long

This is a regression introduced by 526522caae103a27cd36740d6eca59387a189d02.
Reverting the commit or disabling the new handle = load_ntdll( argv[0] ) code
in loader/main.c makes the bug go away.

On Catalina, I have additionally seen random failures to load PE DLLs
introduced by the same commit. I have not investigated this yet as a 64 bit CEF
build is tricky either way.

This may be a duplicate of bug 49370. The exact way Wine crashes isn't clear in
49370, but the regression is caused by the same commit and it is also mac OS
specific.

The particular CEF build my log is from is the Sample Application from
http://opensource.spotify.com/cefbuilds/index.html#windows32_builds , version
"07/24/2020 - CEF 84.3.7+g97011bc+chromium-84.0.4147.89 / Chromium
84.0.4147.89". I first noticed it with the CEF version that is embedded inside
Wargaming.net Game Center, which has some workarounds for the 64 bit problems
on Mac.

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