[Bug 70944] 2.99.905 segfaults frequently when running "x11perf -copyplane500" with SNA

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=70944

--- Comment #4 from intelgraphics7 at gmx-topmail.de ---
Here is the GDB backtrace:

Program received signal SIGBUS, Bus error.
sna_copy_bitmap_blt (_bitmap=0x80564a00, drawable=0x80575c60, gc=0x80577f80,
region=0xbffff784, sx=74, sy=73, bitplane=1, closure=0xbffff808)
    at sna_accel.c:7454
7454    sna_accel.c: No such file or directory.
(gdb) bt
#0  sna_copy_bitmap_blt (_bitmap=0x80564a00, drawable=0x80575c60,
gc=0x80577f80, region=0xbffff784, sx=74, sy=73, bitplane=1, closure=0xbffff808)
    at sna_accel.c:7454
#1  0x0067c5e3 in sna_do_copy (src=0x80564a00, dst=0x80575c60, gc=0x80577f80,
sx=91, sy=92, width=500, height=500, dx=17, dy=19, 
    copy=0x676630 <sna_copy_bitmap_blt>, bitPlane=1, closure=0xbffff808) at
sna_accel.c:6166
#2  0x00691758 in sna_copy_plane (src=0x80564a00, dst=0x80575c60,
gc=0x80577f80, src_x=91, src_y=92, w=500, h=500, dst_x=14, dst_y=16, bit=1)
    at sna_accel.c:7773
#3  0x801115cd in ?? ()
#4  0x800e54ac in ?? ()
#5  0x800379ed in ?? ()
#6  0x800253ea in ?? ()
#7  0x003204d3 in __libc_start_main () from /lib/i386-linux-gnu/libc.so.6
#8  0x80025729 in _start ()

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