Program received signal SIGSEGV, Segmentation fault.
0x00007fe2c4ea2e21 in memcpy () from /lib/libc.so.6 
(gdb) bt                                            
#0  0x00007fe2c4ea2e21 in memcpy () from /lib/libc.so.6
#1  0x00007fe2c33cf018 in I830PutImage (pScrn=0x80c3f0, src_x=0, src_y=0, drw_x=<value optimized out>, 
    drw_y=<value optimized out>, src_w=<value optimized out>, src_h=270, drw_w=480, drw_h=270, id=842094169, 
    buf=0x7fe2ad424000 "ktrsssrsuuttsssr", 't' <repeats 12 times>, "uuvuvwxvvvvvuuuuutsuxvwywwwwuvuvvwwwvvvvvvwvvwwwxwvvwwwwxxwwuwvwwwxwwwxxxyzxvvwwvtuuvvvwtsstuuuuvvuvuuttturqqrstvwvvvvvuuuurqrrrssrrqprsstusrtuvwvuuuuurqrqqqqpqrstttttsssst"..., width=480, height=270, sync=0, clipBoxes=0x7fffce938000, data=0x853600, pDraw=0x12e03e0)           
    at ../../src/i830_video.c:1379                                                                                 
#2  0x0000000000495d82 in xf86XVPutImage (client=<value optimized out>, pDraw=0x12e03e0, pPort=0x8543b0,           
    pGC=<value optimized out>, src_x=16384, src_y=480, src_w=6939, src_h=6939, drw_x=0, drw_y=0,                   
    drw_w=<value optimized out>, drw_h=<value optimized out>, format=0x853e90,                                     
    data=0x7fe2ad424000 "ktrsssrsuuttsssr", 't' <repeats 12 times>, "uuvuvwxvvvvvuuuuutsuxvwywwwwuvuvvwwwvvvvvvwvvwwwxwvvwwwwxxwwuwvwwwxwwwxxxyzxvvwwvtuuvvvwtsstuuuuvvuvuuttturqqrstvwvvvvvuuuurqrrrssrrqprsstusrtuvwvuuuuurqrqqqqpqrstttttsssst"..., sync=0, width=<value optimized out>, height=<value optimized out>)                                
    at ../../../../hw/xfree86/common/xf86xv.c:1777                                                                 
#3  0x00007fe2c42a0336 in ProcXvShmPutImage (client=0xa49160) at ../../Xext/xvdisp.c:1180                          
#4  0x000000000044ea9f in Dispatch () at ../../dix/dispatch.c:502                                                  
#5  0x0000000000436b9d in main (argc=8, argv=0x7fffce9386e8, envp=<value optimized out>) at ../../dix/main.c:452   
(gdb) bt full                                                                                                      
#0  0x00007fe2c4ea2e21 in memcpy () from /lib/libc.so.6                                                            
No symbol table info available.                                                                                                           
#1  0x00007fe2c33cf018 in I830PutImage (pScrn=0x80c3f0, src_x=0, src_y=0, drw_x=<value optimized out>,                                    
    drw_y=<value optimized out>, src_w=<value optimized out>, src_h=270, drw_w=480, drw_h=270, id=842094169,                              
    buf=0x7fe2ad424000 "ktrsssrsuuttsssr", 't' <repeats 12 times>, "uuvuvwxvvvvvuuuuutsuxvwywwwwuvuvvwwwvvvvvvwvvwwwxwvvwwwwxxwwuwvwwwxwwwxxxyzxvvwwvtuuvvvwtsstuuuuvvuvuuttturqqrstvwvvvvvuuuurqrrrssrrqprsstusrtuvwvuuuuurqrqqqqpqrstttttsssst"..., width=480, height=270, sync=0, clipBoxes=0x7fffce938000, data=0x853600, pDraw=0x12e03e0)                                                                                               
    at ../../src/i830_video.c:1379                                                                                                             
        pI830 = (I830Ptr) 0x80eaf0                                                                                                             
        pPriv = <value optimized out>                                                                                                          
        pScreen = (ScreenPtr) 0x83b0e0                                                                                                         
        pPixmap = <value optimized out>                                                                                                        
        x1 = 0                                                                                                                                 
        x2 = 31457280                                                                                                                          
        y1 = 0                                                                                                                                 
        y2 = 17694720                                                                                                                          
        srcPitch = 480                                                                                                                         
        srcPitch2 = 240                                                                                                                        
        dstPitch = 256                                                                                                                         
        destId = 842094169                                                                                                                     
        top = <value optimized out>                                                                                                            
        left = <value optimized out>                                                                                                           
        npixels = 480                                                                                                                          
        nlines = 270                                                                                                                           
        size = <value optimized out>                                                                                                           
        dstBox = {x1 = 400, y1 = 265, x2 = 880, y2 = 535}                                                                                      
        pitchAlignMask = <value optimized out>                                                                                                 
        alloc_size = <value optimized out>                                                                                                     
        extraLinear = <value optimized out>                                                                                                    
        crtc = <value optimized out>                                                                                                           
#2  0x0000000000495d82 in xf86XVPutImage (client=<value optimized out>, pDraw=0x12e03e0, pPort=0x8543b0,                                       
    pGC=<value optimized out>, src_x=16384, src_y=480, src_w=6939, src_h=6939, drw_x=0, drw_y=0,                                               
    drw_w=<value optimized out>, drw_h=<value optimized out>, format=0x853e90,                                                                 
    data=0x7fe2ad424000 "ktrsssrsuuttsssr", 't' <repeats 12 times>, "uuvuvwxvvvvvuuuuutsuxvwywwwwuvuvvwwwvvvvvvwvvwwwxwvvwwwwxxwwuwvwwwxwwwxxxyzxvvwwvtuuvvvwtsstuuuuvvuvuuttturqqrstvwvvvvvuuuurqrrrssrrqprsstusrtuvwvuuuuurqrqqqqpqrstttttsssst"..., sync=0, width=<value optimized out>, height=<value optimized out>)                                                                                                                    
    at ../../../../hw/xfree86/common/xf86xv.c:1777                                                                                             
        portPriv = <value optimized out>                                                                                                       
        WinRegion = {extents = {x1 = 400, y1 = 265, x2 = 880, y2 = 535}, data = 0x0}                                                           
        ClipRegion = {extents = {x1 = 400, y1 = 265, x2 = 880, y2 = 535}, data = 0x0}                                                          
        ret = 0                                                                                                                                
#3  0x00007fe2c42a0336 in ProcXvShmPutImage (client=0xa49160) at ../../Xext/xvdisp.c:1180                                                      
        pDraw = (DrawablePtr) 0x12e03e0                                                                                                        
        pPort = (XvPortPtr) 0x8543b0                                                                                                           
        pImage = (XvImagePtr) 0x853e90                                                                                                         
        pGC = (GCPtr) 0xecf2f0                                                                                                                 
        status = 454761243                                                                                                                     
        size_needed = <value optimized out>                                                                                                    
        i = <value optimized out>                                                                                                              
        width = 480                                                                                                                            
        height = 270                                                                                                                           
#4  0x000000000044ea9f in Dispatch () at ../../dix/dispatch.c:502                                                                              
        clientReady = <value optimized out>                                                                                                    
        result = <value optimized out>                                                                                                         
        client = (ClientPtr) 0xa49160                                                                                                          
        nready = 0                                                                                                                             
        start_tick = 5760                                                                                                                      
#5  0x0000000000436b9d in main (argc=8, argv=0x7fffce9386e8, envp=<value optimized out>) at ../../dix/main.c:452                               
        i = 1                                                                                                                                  
        error = 0                                                                                                                              
        xauthfile = <value optimized out>                                                                                                      
        alwaysCheckForInput = {0, 1}