[Nouveau] [Bug 91972] [NVE7] 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

Ilia Mirkin <imirkin at alum.mit.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|xorg/nouveau crashes when   |[NVE7] xorg/nouveau crashes
                   |running wine's unit tests   |when running wine's unit
                   |under valgrind: EXA: malloc |tests under valgrind: EXA:
                   |failed for size -262140     |malloc failed for size
                   |bytes                       |-262140 bytes

--- Comment #1 from Ilia Mirkin <imirkin at alum.mit.edu> ---
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?

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