On Sun, Jun 30, 2002 at 12:39:30 +0200, Felix Kühling wrote: > Hi mach64 folks, > > after several weeks of extreme busyness/absence I am back now and > testing the mach64-0-0-4 and 0-0-5 branches again (still the best I can > do :( ). It's great that you got 2D accel working. However, there is > still one problem. > > Moving a GL window caused the X-server to segfault with both the latest > versions of mach64-0-0-4 and 0-0-5. Moving any other window while 3D was > active was no problem. I experimented a bit with this and it turned out > that the problem only occurs when I use > > Option "XaaNoScreenToScreenCopy" > > in the Screen section. (I did this since it caused drawing errors in > some situations.) > > I got a backtrace of the segfault: > > Program received signal SIGSEGV, Segmentation fault. > 0x00000000 in ?? () > #0 0x00000000 in ?? () > #1 0x08741a5f in ?? () > #2 0x0825129f in ?? () > #3 0x0817e351 in miMoveWindow (pWin=0x8912d18, x=0, y=0, pNextSib=0x8939780, > kind=VTMove) at miwindow.c:553 > #4 0x080d8d17 in ConfigureWindow (pWin=0x8912d18, mask=3, vlist=0x88f2088, > client=0x88d5560) at window.c:2507 > #5 0x080beda2 in ProcConfigureWindow (client=0x88d5560) at dispatch.c:772 > #6 0x080b9608 in Dispatch () at dispatch.c:462 > #7 0x080cde39 in main (argc=5, argv=0xbffffb84, envp=0xbffffb9c) at main.c:454 > > call LoaderPrintSymbol printed this in XFree86.1.log: > 0x8741138 ATIInitializeXVideo+927 > Module "/usr/X11R6-mach64005/lib/modules/drivers/atimisc_drv.o" > Section ".text" > 0x82511f0 DRICopyWindow+af > Module "/usr/X11R6-mach64005/lib/modules/extensions/libdri.a:dri.o" > Section ".text" > > It seems that there is a call to a null pointer in the end. Just a > guess: Could it be a call to the ScreenToScreen copy function which I > disabled in the XF86Config?
Yes. It is indeed the problem. ATIDRIMoveBuffers() calls this XAA function. I guess if this is disabled you need to fallback to software copying, or disable DRI (ouch). Alan. ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
