Created attachment 30098 [details] backtrace from the crash Today I had a couple of apparently random crashes when using Firefox 3.5.3; when I found a web page who could reliably trigger the problem (http://blogs.gentoo.org/index.php/2009/10/04/review-progress?blog=86) I recompiled part of the X stack (xserver, mesa, libdrm, xf86-video-ati) disabling compiler optimizations (-O0 -ggdb) and with full debugging symbols; the backtrace from the crash (full version attached) points out to a problem in the radeon_drv driver: #0 0xf7a1eed7 in radeon_cs_flush_indirect (pScrn=0x9e93948) at radeon_kms.c:78 #1 0xf79e4730 in RadeonCompositeTileCP (pScrn=0x9e93948, info=0x9e93e30, pDst=0xd07b1008, srcX=0, srcY=0, maskX=-3980, maskY=460, dstX=100, dstY=460, w=20, h=20) at radeon_exa_render.c:2182 #2 0xf79e74c8 in RadeonCompositeCP (pDst=0xd07b1008, srcX=0, srcY=0, maskX=-4080, maskY=0, dstX=0, dstY=0, width=865, height=487) at radeon_exa_render.c:2426 #3 0xf773eb3c in exaTryDriverComposite (op=1 '\001', pSrc=0xb4ccbf0, pMask=0x0, pDst=0xb4ccb10, xSrc=0, ySrc=0, xMask=-4080, yMask=0, xDst=0, yDst=0, width=865, height=487) at exa_render.c:688 #4 0xf773f3e9 in exaComposite (op=1 '\001', pSrc=0xb4ccbf0, pMask=0x0, pDst=0xb4ccb10, xSrc=0, ySrc=0, xMask=0, yMask=0, xDst=0, yDst=0, width=865, height=487) at exa_render.c:883 #5 0x081b8bbe in damageComposite (op=1 '\001', pSrc=0xb4ccbf0, pMask=0x0, pDst=0xb4ccb10, xSrc=0, ySrc=0, xMask=0, yMask=0, xDst=0, yDst=0, width=865, height=487) at damage.c:643 #6 0x081a8fce in CompositePicture (op=1 '\001', pSrc=0xb4ccbf0, pMask=0x0, pDst=0xb4ccb10, xSrc=0, ySrc=0, xMask=0, yMask=0, xDst=0, yDst=0, width=865, height=487) at picture.c:1675 #7 0x081ab0f6 in ProcRenderComposite (client=0xa0dbf30) at render.c:723 #8 0x081aead8 in ProcRenderDispatch (client=0xa0dbf30) at render.c:2089 #9 0x08084ec8 in Dispatch () at dispatch.c:456 #10 0x0806b20d in main (argc=9, argv=0xffeaadb4, envp=0xffeaaddc) at main.c:397 I'm currently using xorg-server 1.6.4 (with the patch fixing the DGA crash) libdrm 2.4.14, mesa from mesa_7_6_branch (commit 79892e7976fbb91ae426f5868d5f453e977c1f17) and xf86-video-ati from git master (commit 457646d734558672402b6bcd15cadb66741edbed).
Created attachment 30099 [details] Xorg.0.log I forgot to mention that I'm using a 2.6.31 kernel without modesetting.
Created attachment 30100 [details] xorg.conf
*** This bug has been marked as a duplicate of bug 24316 ***
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