Ok, so I think that the issue may be present only on that isolated case of Windows 8 x64. Tried the tests with latest beta available from treeherder (20200115154857) under Windows 8 x86 (all tests passed), under Windows 8.1 x64 (all tests passed) and on Windows 8 x64 with both x86 and x64 builds and they failed. Kaspersky antivirus was installed on all of them. Please let me know if I can help with any further investigations or informations.
Bug 1598650 Comment 19 Edit History
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Ok, so I think that the issue may be present only on that isolated case of Windows 8 x64. Tried the tests with latest beta available from treeherder (20200115154857) under Windows 8 x86 (all tests passed) and under Windows 8.1 x64 on two different systems (all tests passed). Windows 8 x64 with both x86 and x64 builds and they failed. Kaspersky antivirus was installed on all of them. Please let me know if I can help with any further investigations or informations.
Ok, so I think that the issue may be present only on that isolated case of Windows 8 x64. Tried the tests with latest beta available from treeherder (20200115154857) under Windows 8 x86 (all tests passed) and under Windows 8.1 x64 on two different systems (all tests passed). On Windows 8 x64 with both x86 and x64 builds, the tests failed. Kaspersky antivirus was installed on all of them. Please let me know if I can help with any further investigations or informations.