| Summary: | [sna, gm45] crash in sna_composite | ||
|---|---|---|---|
| Product: | xorg | Reporter: | Magnus Kessler <Magnus.Kessler> |
| Component: | Driver/intel | Assignee: | Chris Wilson <chris> |
| Status: | RESOLVED FIXED | QA Contact: | Xorg Project Team <xorg-team> |
| Severity: | normal | ||
| Priority: | medium | ||
| Version: | git | ||
| Hardware: | Other | ||
| OS: | All | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
commit a6b48dd7f1eeb1a8e3841b8f3326c60b300ee9e9 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Thu Mar 22 09:22:52 2012 +0000 sna: Force fallbacks if the destination is unattached Since the removal of the ability to create a backing pixmap after the creation of its parent, it no longer becomes practical to attempt rendering with the GPU to unattached pixmaps. So having made the decision never to render to that pixmap, perform the test explicitly along the render paths. This fixes a segmentation fault introduced in 8a303f195 (sna: Remove existing damage before overwriting with a composite op) which assumed the existence of a backing pixmap along a render path. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=47700 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> |
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When running under KDE, with the kde44-oxygen-molecule theme configured for GTK applications, starting pavucontrol reproducibly crashes the X server. Program received signal SIGSEGV, Segmentation fault. sna_composite (op=1 '\001', src=0x68db5b0, mask=0x0, dst=0x68db8c0, src_x=0, src_y=0, mask_x=0, mask_y=0, dst_x=0, dst_y=0, width=256, height=256) at ../xf86-video-intel-9999/src/sna/sna_composite.c:484 484 ../xf86-video-intel-9999/src/sna/sna_composite.c: No such file or directory. in ../xf86-video-intel-9999/src/sna/sna_composite.c (gdb) bt #0 sna_composite (op=1 '\001', src=0x68db5b0, mask=0x0, dst=0x68db8c0, src_x=0, src_y=0, mask_x=0, mask_y=0, dst_x=0, dst_y=0, width=256, height=256) at ../xf86-video-intel-9999/src/sna/sna_composite.c:484 #1 0x00000000005029a4 in damageComposite (op=1 '\001', pSrc=0x68db5b0, pMask=0x0, pDst=0x68db8c0, xSrc=0, ySrc=0, xMask=0, yMask=0, xDst=0, yDst=0, width=256, height=256) at /usr/src/debug/x11-base/xorg-server-1.12.0-r1/xorg-server-1.12.0/miext/damage/damage.c:569 #2 0x00000000004fb1ec in ProcRenderComposite (client=0x32e3670) at /usr/src/debug/x11-base/xorg-server-1.12.0-r1/xorg-server-1.12.0/render/render.c:722 #3 0x0000000000437a91 in Dispatch () at /usr/src/debug/x11-base/xorg-server-1.12.0-r1/xorg-server-1.12.0/dix/dispatch.c:439 #4 0x00000000004264ca in main (argc=<optimized out>, argv=0x7fff799cfbb8, envp=<optimized out>) at /usr/src/debug/x11-base/xorg-server-1.12.0-r1/xorg-server-1.12.0/dix/main.c:287