New subject: [Bug 55365] ntdll:file - test_file_full_size_information() sometimes gets a bad AvailableAllocationUnits value on Windows and Wine

30 Jul 2023

      https://bugs.winehq.org/show_bug.cgi?id=55365

            Bug ID: 55365
           Summary: ntdll:file - test_file_full_size_information()
                    sometimes gets a bad AvailableAllocationUnits value on
                    Windows and Wine
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: ntdll
          Assignee: wine-bugs(a)winehq.org
          Reporter: fgouget(a)codeweavers.com

ntdll:file - test_file_full_size_information() sometimes gets a bad
AvailableAllocationUnits value on Windows and Wine:

file.c:1320: Test failed: [ffsi] CallerAvailableAllocationUnits error
fsi:0x12dbfb5, ffsi: 0x12dbfb6

See https://test.winehq.org/data/patterns.html#ntdll:file

This is very rare as there are only 3 known instances:
* 2023-03-27 linux_gitlab-debian-32
* 2023-06-23 linux_gitlab-debian-32
* 2023-07-27 win21H2_gitlab-win10-21h2-64

This looks very much like a race condition with some other process allocating
or freeing disk space in between the FileFsFullSizeInformation and
FileFsSizeInformation calls. So this is something that should be fixable with
the tryok() API.
https://gitlab.winehq.org/wine/wine/-/merge_requests/3418

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[Bug 55365] New: ntdll:file - test_file_full_size_information() sometimes gets a bad AvailableAllocationUnits value on Windows and Wine

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