[Nouveau] [Bug 91972] [NVE4] xorg/nouveau crashes when running wine's unit tests under valgrind: EXA: malloc failed for size -262140 bytes

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91972

--- Comment #5 from Austin English <austinenglish at gmail.com> ---
(In reply to Ilia Mirkin from comment #1)
> Wow, very uncommon configuration... nouveau as main and intel as "GPU". Are
> you doing any actual offloading (of either outputs or rendering)?
> 
> exa/exa_migration_mixed.c:                FatalError("EXA: malloc failed for
> size %d bytes\n",
> 
> pExaPixmap->sys_pitch * pPixmap->drawable.height
> 
> exa/exa_priv.h:    int sys_pitch;              /**< pitch of pixmap in
> system memory */
> include/pixmapstr.h:    unsigned short height;
> 
> I guess sys_pitch is somehow negative then.
> 
> Can you "bisect" the test, i.e. figure out which bit of it triggers the
> issue? And perhaps modify that print to show what the individual values in
> that multiplication are?

Finally got to this, it's this call:
https://source.winehq.org/git/wine.git/blob/12111d8c3b897df92fabc1c1a81567477952e9b1:/dlls/user32/tests/win.c#l2200

printed the individual values:
win.c:2201: window handle: 0x1f00be window handle2: 0, left position: 100, top
position: 100, width: 12c height: 300, flags: 0

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