On Sat, 2008-11-15 at 12:22 +1000, Dave Airlie wrote: > I'm not quite sure what causes it, > > TRACE: RADEONPrepareCopyCP > TRACE: RADEONDoneCopyCP > copy without emission > > Backtrace: > 0: /usr/bin/Xorg(xorg_backtrace+0x3b) [0x812b9ab] > 1: /usr/lib/xorg/modules/drivers//radeon_drv.so [0xb7c45353] > 2: /usr/lib/xorg/modules//libexa.so(exaCopyNtoN+0x835) [0xb7ba03c5] > 3: /usr/lib/xorg/modules//libfb.so(fbCopyRegion+0x161) [0xb7bbb6c1] > 4: /usr/lib/xorg/modules//libexa.so(exaCopyWindow+0xe0) [0xb7b9fa60] > 5: /usr/bin/Xorg [0x816f680] > 6: /usr/bin/Xorg [0x811b244] > 7: /usr/bin/Xorg(compCopyWindow+0xb4) [0x813ccd4] > 8: /usr/bin/Xorg(miSlideAndSizeWindow+0x743) [0x8123043] > 9: /usr/bin/Xorg(compResizeWindow+0xb8) [0x813d1d8] > 10: /usr/bin/Xorg(ConfigureWindow+0xa91) [0x8072251] > 11: /usr/bin/Xorg(ProcConfigureWindow+0x92) [0x8085412] > 12: /usr/bin/Xorg(Dispatch+0x34f) [0x8085e6f] > 13: /usr/bin/Xorg(main+0x47d) [0x806b6ed] > 14: /lib/libc.so.6(__libc_start_main+0xe5) [0xb7d286d5] > 15: /usr/bin/Xorg [0x806aad1] > TRACE: RADEONMarkSyncCP > > > I hacked up my exa driver to report these and I get a fair few of them > at startup > > miClearToBackground and miSlideAndSizeWindow seems to be main entry > points into the issue > > I also see some from exaFillRegionTiled
Sounds like maybe exaCopyNtoN and exaFillRegionTiled should bail early if nbox == 0. Or maybe that should really be done higher up, e.g. the damage layer could not call down unless really necessary. -- Earthling Michel Dänzer | http://tungstengraphics.com Libre software enthusiast | Debian, X and DRI developer _______________________________________________ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg