Bug 679111

Created attachment 479945 [details]
File: backtrace

I've tried to reproduce again, but it did not crash

Created attachment 479947 [details]
Xorg.0.log

Backtrace:
[  9732.462] 0: /usr/bin/X (xorg_backtrace+0x2f) [0x4a120f]
[  9732.462] 1: /usr/bin/X (0x400000+0x61da6) [0x461da6]
[  9732.462] 2: /lib64/libc.so.6 (0x33f8800000+0x36300) [0x33f8836300]
[  9732.462] 3: /usr/lib64/xorg/modules/drivers/nouveau_drv.so (0x7f16ff46f000+0xb36d) [0x7f16ff47a36d]
[  9732.462] 4: /usr/lib64/xorg/modules/extensions/libdri2.so (0x7f16ff6ae000+0x1648) [0x7f16ff6af648]
[  9732.462] 5: /usr/lib64/xorg/modules/extensions/libdri2.so (0x7f16ff6ae000+0x218d) [0x7f16ff6b018d]
[  9732.462] 6: /usr/lib64/xorg/modules/extensions/libdri2.so (DRI2GetBuffersWithFormat+0x14) [0x7f16ff6b04a4]
[  9732.462] 7: /usr/lib64/xorg/modules/extensions/libdri2.so (0x7f16ff6ae000+0x3d1c) [0x7f16ff6b1d1c]
[  9732.462] 8: /usr/bin/X (0x400000+0x2e6a1) [0x42e6a1]
[  9732.462] 9: /usr/bin/X (0x400000+0x2292a) [0x42292a]
[  9732.462] 10: /lib64/libc.so.6 (__libc_start_main+0xed) [0x33f88212fd]
[  9732.462] 11: /usr/bin/X (0x400000+0x22c11) [0x422c11]
[  9732.462] Segmentation fault at address (nil)
[  9732.462] 
Fatal server error:
[  9732.462] Caught signal 11 (Segmentation fault). Server aborting

02:00.0 VGA compatible controller [0300]: nVidia Corporation G86 [Quadro NVS 290] [10de:042f] (rev a1)

How to reproduce
-----
1.# useradd u
2.# passwd u
3.Switch User to u
4.# glxgears
5.Don't close glxgears. Switch to previous user
6.# glxgears
7.Click Maximize Window or resize window
8.Xorg crash occurs

Created attachment 480484 [details]
backtrace

Same problem with new NVIDIA-Linux-x86_64-270.29 that support x-server-1.10.
The x-server don't start.

Backtrace from Xorg.0.log:
.
.
.
.
[    79.149] (==) NVIDIA(0):     will be used as the requested mode.
[    79.149] (==) NVIDIA(0): 
[    79.149] (II) NVIDIA(0): Validated modes:
[    79.149] (II) NVIDIA(0):     "nvidia-auto-select"
[    79.149] (II) NVIDIA(0): Virtual screen size determined to be 1680 x 1050
[    79.169] (--) NVIDIA(0): DPI set to (90, 88); computed from "UseEdidDpi" X config
[    79.169] (--) NVIDIA(0):     option
[    79.169] (--) Depth 24 pixmap format is 32 bpp
[    79.169] (II) NVIDIA: Using 768.00 MB of virtual memory for indirect memory access.
[    79.177] (II) NVIDIA(0): Setting mode "nvidia-auto-select"
[    79.215] (II) Loading extension NV-GLX
[    79.231] 
Backtrace:
[    79.231] 0: /usr/bin/X (xorg_backtrace+0x2f) [0x4a120f]
[    79.231] 1: /usr/bin/X (0x400000+0x61da6) [0x461da6]
[    79.231] 2: /lib64/libc.so.6 (0x3c78400000+0x36300) [0x3c78436300]
[    79.231] 3: /usr/lib64/xorg/modules/drivers/nvidia_drv.so (0x7feac73f4000+0x41dcb0) [0x7feac7811cb0]
[    79.231] 4: /usr/lib64/xorg/modules/drivers/nvidia_drv.so (0x7feac73f4000+0x42893a) [0x7feac781c93a]
[    79.231] 5: /usr/bin/X (AddScreen+0x173) [0x42e9f3]
[    79.231] 6: /usr/bin/X (InitOutput+0x282) [0x471312]
[    79.231] 7: /usr/bin/X (0x400000+0x22779) [0x422779]
[    79.231] 8: /lib64/libc.so.6 (__libc_start_main+0xed) [0x3c784212fd]
[    79.231] 9: /usr/bin/X (0x400000+0x22c11) [0x422c11]
[    79.231] Segmentation fault at address 0x18
[    79.231] 
Fatal server error:
[    79.231] Caught signal 11 (Segmentation fault). Server aborting

Hope this help to solve the bug.
Maybe fedora have to update x-server to rc2.

Possibly d

fedora 16 with intel driver here showing the same problem, it is a segmentation fault in Xorg.

Created attachment 533302 [details]
maps

here maps

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