(gdb) bt
#0  0x0000000000425f31 in xnestSetCursor (pDev=0x20d35f800, 
    pScreen=0x2053e4400, pCursor=0x20bb52cc0, x=1, y=262)
    at /share/OpenBSD/xenocara/xserver/hw/xnest/Cursor.c:151
#1  0x0000000000439fc8 in miPointerUpdateSprite (pDev=0x20d35f800)
    at /share/OpenBSD/xenocara/xserver/mi/mipointer.c:380
#2  0x00000000004399fa in miPointerDisplayCursor (pDev=0x20d35f800, 
    pScreen=0x2053e4400, pCursor=0x20bb52cc0)
    at /share/OpenBSD/xenocara/xserver/mi/mipointer.c:199
#3  0x000000000042e8f5 in CursorDisplayCursor (pDev=0x20d35f800, 
    pScreen=0x2053e4400, pCursor=0x20bb52cc0)
    at /share/OpenBSD/xenocara/xserver/xfixes/cursor.c:152
#4  0x000000000057e772 in UpdateSpriteForScreen (pDev=0x20d35f800, 
    pScreen=0x2053e4400) at /share/OpenBSD/xenocara/xserver/dix/events.c:3075
#5  0x0000000000439e06 in miPointerWarpCursor (pDev=0x20d35f800, 
    pScreen=0x2053e4400, x=1, y=262)
    at /share/OpenBSD/xenocara/xserver/mi/mipointer.c:321
#6  0x0000000000439b26 in miPointerSetCursorPosition (pDev=0x20d35f800, 
    pScreen=0x2053e4400, x=1, y=262, generateEvent=1)
    at /share/OpenBSD/xenocara/xserver/mi/mipointer.c:232
#7  0x00000000005794f9 in CheckPhysLimits (pDev=0x20d35f800, 
    cursor=0x20bb52cc0, generateEvents=1, confineToScreen=0, 
    pScreen=0x2053e4400) at /share/OpenBSD/xenocara/xserver/dix/events.c:762
#8  0x0000000000579a45 in ConfineCursorToWindow (pDev=0x20d35f800, 
    pWin=0x2012ad400, generateEvents=1, confineToScreen=0)
    at /share/OpenBSD/xenocara/xserver/dix/events.c:908
#9  0x000000000057ea46 in NewCurrentScreen (pDev=0x20d35f800, 
    newScreen=0x2053e4400, x=1, y=262)
    at /share/OpenBSD/xenocara/xserver/dix/events.c:3139
#10 0x0000000000426dc7 in xnestCollectEvents ()
    at /share/OpenBSD/xenocara/xserver/hw/xnest/Events.c:186
#11 0x00000000004294e7 in xnestWakeupHandler (blockData=0x0, result=1, 
    pReadMask=0xa3f960)
    at /share/OpenBSD/xenocara/xserver/hw/xnest/Handlers.c:44
#12 0x00000000005757bb in WakeupHandler (result=1, pReadmask=0xa3f960)
---Type <return> to continue, or q <return> to quit---
    at /share/OpenBSD/xenocara/xserver/dix/dixutils.c:419
#13 0x00000000005b4f5c in WaitForSomething (pClientsReady=0x2044dea00)
    at /share/OpenBSD/xenocara/xserver/os/WaitFor.c:232
#14 0x0000000000567b86 in Dispatch ()
    at /share/OpenBSD/xenocara/xserver/dix/dispatch.c:368
#15 0x00000000005b3493 in main (argc=4, argv=0x7f7fffff7178, 
    envp=0x7f7fffff71a0) at /share/OpenBSD/xenocara/xserver/dix/main.c:291