[Bug 31883] New: regression/dogfood: PCSX2 locks up when/shortly after initializing MTGS

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=31883

             Bug #: 31883
           Summary: regression/dogfood: PCSX2 locks up when/shortly after
                    initializing MTGS
           Product: Wine
           Version: 1.5.14
          Platform: x86-64
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: winex11.drv
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: billy65bob at gmail.com
    Classification: Unclassified


This has been happening since mid/early August when work began to remove the
"Big X Lock."

Since then, attempting to initialise the GS has caused either one of two
results
1. The MTGS fails to initialise
2. it initialises and completely locks up after a few seconds of continually
degrading performance. Console output identifies the context_section critical
section as the point of failure

I have attached 3 logs, their names indicate the WIENDEBUG value used.
relay_wgl.log - failed to initialise (even after multiple attempts)
relay.log - failed to initialise
wgl.log - initialised and locked up shortly after

The first problematic build I have is dated August 14th, things get
increasingly worse going forwards.
The last problem free build is dated August 2nd


As for how things got worse (and isn't really relevant to the bug report),
since 8/14, additional work kept being done.
Initially I could scroll or move another wine window to fudge the locking a
bit, this would either resolve it temporarily to at least give me a fighting
chance to restart the renderer and play. It could still occasionally initialise
it properly at this stage.
Going forward, I could not longer used this trick and it started locking up
constantly and reliably, to the point that I could no longer get a lucky break
to run it for even a moment.
Also worth noting that in some of the worst cases, the window created by the GS
looks like it's initial update to a full black window is being done in 100x100
tiles over a few seconds.

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