New subject: [Bug 51295] ntoskrnl.exe:ntoskrnl occasionally hangs in test_overlapped()

19 Jun 2021


      https://bugs.winehq.org/show_bug.cgi?id=51295
Bug ID: 51295
           Summary: ntoskrnl.exe:ntoskrnl occasionally hangs in
                    test_overlapped()
           Product: Wine
           Version: 6.10
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Keywords: regression, source, testcase
          Severity: normal
          Priority: P2
         Component: wineserver
          Assignee: wine-bugs@winehq.org
          Reporter: z.figura12@gmail.com
   Regression SHA1: 97afac469fbe012e22acc1f1045c88b1004a241f
      Distribution: ---
Created attachment 70168
  --> https://bugs.winehq.org/attachment.cgi?id=70168
make the problem more reproducible
Specifically, it hangs if ntoskrnl is able to signal that the IRP is pending
(by calling get_next_device_request) before the user space process calls
wait_async().
97afac469 intends for wait_async() to return STATUS_PENDING, because that is
the synchronous return of the ioctl. The problem is that we're trying to have
the select request *succeed immediately*, but STATUS_PENDING means that it
didn't succeed immediately and that the client needs to wait for a wakeup.
This can be triggered pretty reliably by running the relevant tests in a loop,
as in the attached patch.
I think
https://testbot.winehq.org/JobDetails.pl?Key=92616&f401=win32.report#k401 is
an example of this happening on the testbot.
-- 
Do not reply to this email, post in Bugzilla using the
above URL to reply.
You are receiving this mail because:
You are watching all bug changes.

[Bug 51295] New: ntoskrnl.exe:ntoskrnl occasionally hangs in test_overlapped()