| Summary: | Mesa crash in _mesa_DrawBuffer when running the sproingies screensaver | ||
|---|---|---|---|
| Product: | Mesa | Reporter: | Brice Goglin <brice.goglin> |
| Component: | Mesa core | Assignee: | mesa-dev |
| Status: | RESOLVED WORKSFORME | QA Contact: | |
| Severity: | normal | ||
| Priority: | medium | CC: | tkoenig |
| Version: | unspecified | ||
| Hardware: | Other | ||
| OS: | All | ||
| URL: | http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=454055 | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
One addtional comment: The screen saver runs fine if it is started automatically. It is only the "preview" function of xscreensaver-demo that crashes the x-server. Thomas It looks like this is an indirect rendering bug (based on the stacktrace). I tried sproings in the xscreensaver-demo preview window using LIBGL_ALWAYS_INDIRECT=y (to force indirect rendering), and I was not able to reproduce the crash. I'm going to close the bug, but if you can still reproduce it, feel free to reopen (and add more data). |
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Reported a couple weeks ago by Thomas Koenig on the Debian BTS. He's using Debian's Xserver 1.3 which has been built on top of some snapshot of the Mesa 7.0 branch (I'd say near 7.0.1 but I can't be sure right now, sorry, I'll try to get more details). He says: Run xscreensaver-demo, select "Sproingies", click "Preview". Seems like the heavy 3d activity crashes the system. His config and log are available at the URL above. Here's the gdb backtrace: Core was generated by `/usr/bin/X -br -nolisten tcp :0 vt7 -auth /var/run/xauth/A:0-pXirMN'. Program terminated with signal 11, Segmentation fault. #0 0xb6327661 in _mesa_DrawBuffer (buffer=1029) at buffers.c:350 350 buffers.c: No such file or directory. in buffers.c (gdb) bt full #0 0xb6327661 in _mesa_DrawBuffer (buffer=1029) at buffers.c:350 bufferID = <value optimized out> destMask = <value optimized out> ctx = (GLcontext *) 0x850dfb0 #1 0xb7bf4928 in __glXDisp_DrawBuffer (pc=0x8a9f74c "\005\004") at ../../../GL/glx/indirect_dispatch.c:1329 No locals. #2 0xb7bed595 in DoRender (cl=0x850d640, pc=0x8a9f748 "\b", do_swap=0) at ../../../GL/glx/glxcmds.c:1824 entry = {bytes = 8, varsize = 0} extra = <value optimized out> proc = (__GLXdispatchRenderProcPtr) 0xb7bf4900 <__glXDisp_DrawBuffer> err = 0 client = (ClientPtr) 0x8546158 left = 8 cmdlen = 8 error = <value optimized out> commandsDone = 0 glxc = (__GLXcontext *) 0x8546010 sw = <value optimized out> #3 0xb7bed62c in __glXDisp_Render (cl=0x850d640, pc=0x8a9f740 "\217\001\004") at ../../../GL/glx/glxcmds.c:1838 No locals. #4 0xb7bf1a7c in __glXDispatch (client=0x8546158) at ../../../GL/glx/glxext.c:551 stuff = (xGLXSingleReq *) 0x8a9f740 opcode = 1 '\001' proc = (__GLXdispatchSingleProcPtr) 0xb7bed600 <__glXDisp_Render> cl = (__GLXclientState *) 0x850d640 retval = 1 #5 0x08154a3e in ?? () No symbol table info available. #6 0x08546158 in ?? () No symbol table info available. #7 0x08546158 in ?? () No symbol table info available. #8 0x08223ed0 in ?? () No symbol table info available. #9 0x081e3b7c in ?? () No symbol table info available. #10 0x00000000 in ?? () No symbol table info available.