Steven Walter wrote: > Occasionally, I'll get an OpenGL app (almost always a screensaver) that > will freeze up, leaving the console unusable. Numlock doesn't toggle, > etc. If I log in via serial console and kill the app, then all is well. > This seems to happen once every day or two. > > Recently, I got a debuggable build of the DRI cvs running, and was > happily able to obtain a backtrace from the (apparently) frozen app. > Some of it looks a little weird, but I hope it's more useful to you > gurus than to me. Here it is: > > #0 0x4072fd51 in _grSstStatus () from /usr/lib/libglide3.so.3 > #1 0x00001000 in ?? () > #2 0x401f06c2 in _tnl_render_quad_strip_verts (ctx=0x0, start=4096, > count=216, flags=2312) at tnl/t_vb_rendertmp.h:391 > #3 0x401f134c in run_render (ctx=0x8076df8, stage=0x44aa6000) > at t_vb_render.c:335 > #4 0x401d8e83 in _tnl_run_pipeline (ctx=0x8076df8) at t_pipeline.c:154 > #5 0x401d715b in _tnl_run_cassette (ctx=0x4401, IM=0x1a00007) > at t_imm_exec.c:375 > #6 0x401d0da8 in execute_compiled_cassette (ctx=0x4401, data=0x1a00007) > at t_imm_dlist.c:379 > #7 0x40112863 in execute_list (ctx=0x8076df8, list=134704632) at dlist.c:3999 > #8 0x40112f4d in _mesa_CallList (list=2) at dlist.c:4837 > #9 0x0804a7b1 in strcpy () > #10 0x0804b694 in strcpy () > #11 0x0804c1ab in strcpy () > #12 0x0804e569 in strcpy () > #13 0x0804a4cd in strcpy () > #14 0x0804d340 in strcpy () > #15 0x404446cf in __libc_start_main () from /lib/libc.so.6 > > It's hanging in glide, trying to read from the status register. Or, > equally likely, it's repeatedly calling that function, waiting for the > engine to become idle (or some such, I don't really know what I'm > talking about). The next line looks like garbage. Then we're in good > ole Mesa code. The only interesting thing I see here is that > _tnl_render_quad_strip_verts was called with a NULL ctx. Should that > ever happen? Is it the cause of the problem? Where might that occur?
It shouldn't happen, and I've never seen it before. It would be worthwhile tracking down. Keith _______________________________________________________________ Don't miss the 2002 Sprint PCS Application Developer's Conference August 25-28 in Las Vegas - http://devcon.sprintpcs.com/adp/index.cfm?source=osdntextlink _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
