https://bugs.freedesktop.org/show_bug.cgi?id=79823
--- Comment #23 from Ilia Mirkin <[email protected]> --- OK, well, I can't repro this, but clearly the device is getting closed _somehow_. It appears that you're relatively able at debugging things, let me know if I've misunderstood. Can you load up glxtest in gdb (with my fixes), and do break main r break close break nv30_screen_destroy c and look at what happens. The first couple of closes will actually be at creation time because it opens/closes some config files, continue past those. This is what I see: (gdb) c Continuing. Breakpoint 2, nv50_screen_destroy (pscreen=0x633c60) at nv50/nv50_screen.c:295 295 struct nv50_screen *screen = nv50_screen(pscreen); (gdb) n 297 if (!nouveau_drm_screen_unref(&screen->base)) (gdb) p screen->base.device->fd $1 = 8 (gdb) c Continuing. Breakpoint 3, 0x00007ffff6db23d0 in close () from /lib64/libc.so.6 (gdb) bt #0 0x00007ffff6db23d0 in close () from /lib64/libc.so.6 #1 0x00007ffff643797a in dri2DestroyScreen (base=0x618c50) at dri2_glx.c:712 #2 0x00007ffff63fcdb5 in FreeScreenConfigs (priv=0x615600) at glxext.c:208 #3 0x00007ffff63fce3f in glx_display_free (priv=0x615600) at glxext.c:231 #4 0x00007ffff63fd01a in __glXCloseDisplay (dpy=0x6070f0, codes=0x615688) at glxext.c:279 #5 0x00007ffff78bc0c2 in XCloseDisplay () from /usr/lib64/libX11.so.6 #6 0x00000000004011be in glxtest () at glxtest.cpp:202 #7 0x000000000040120a in main (argc=1, argv=0x7fffffffdda8) at glxtest.cpp:211 (gdb) up #1 0x00007ffff643797a in dri2DestroyScreen (base=0x618c50) at dri2_glx.c:712 712 close(psc->fd); (gdb) p psc->fd $2 = 8 (gdb) c Continuing. Breakpoint 3, 0x00007ffff6db23d0 in close () from /lib64/libc.so.6 (gdb) bt #0 0x00007ffff6db23d0 in close () from /lib64/libc.so.6 #1 0x00007ffff6abddee in xcb_disconnect () from /usr/lib64/libxcb.so.1 #2 0x00007ffff78bc0f7 in XCloseDisplay () from /usr/lib64/libX11.so.6 #3 0x00000000004011be in glxtest () at glxtest.cpp:202 #4 0x000000000040120a in main (argc=1, argv=0x7fffffffdda8) at glxtest.cpp:211 (gdb) c [this is actually with nv50, but the nv30 flow should be no different] You must be getting something else, otherwise how is that fd getting closed already. -- You are receiving this mail because: You are the assignee for the bug.
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