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[Rob Lanphier <robla@xxxxxxxxx>]

I'm seeing something very similar on my Lenovo T510.  Backtrace in my
Xorg file:

[mi] EQ overflowing. The server is probably stuck in an infinite loop.
Backtrace:
0: /usr/bin/X (xorg_backtrace+0x3b) [0x80e82fb]
1: /usr/bin/X (mieqEnqueue+0x1ab) [0x80e7aeb]
2: /usr/bin/X (xf86PostMotionEventP+0xd2) [0x80c2172]
3: /usr/lib/xorg/modules/input/evdev_drv.so (0xb6c60000+0x4961) [0xb6c64961]
4: /usr/lib/xorg/modules/input/evdev_drv.so (0xb6c60000+0x4a56) [0xb6c64a56]
5: /usr/lib/xorg/modules/input/evdev_drv.so (0xb6c60000+0x5296) [0xb6c65296]
6: /usr/bin/X (0x8048000+0x6951f) [0x80b151f]
7: /usr/bin/X (0x8048000+0x126aee) [0x816eaee]
8: (vdso) (__kernel_sigreturn+0x0) [0xb7875400]
9: /lib/libdrm.so.2 (drmCommandWrite+0x3b) [0xb7431b9b]
10: /lib/libdrm_nouveau.so.1 (0xb743d000+0x284a) [0xb743f84a]
11: /lib/libdrm_nouveau.so.1 (nouveau_bo_map_range+0xf1) [0xb743fa41]
12: /lib/libdrm_nouveau.so.1 (nouveau_bo_map+0x33) [0xb743fb13]
13: /lib/libdrm_nouveau.so.1 (0xb743d000+0x19e9) [0xb743e9e9]
14: /lib/libdrm_nouveau.so.1 (nouveau_pushbuf_flush+0x1ca) [0xb743edaa]
15: /usr/lib/xorg/modules/drivers/nouveau_drv.so (0xb7405000+0x1b6ce) [0xb74206ce]
16: /usr/lib/xorg/modules/libexa.so (0xb7369000+0x918b) [0xb737218b]
17: /usr/lib/xorg/modules/libexa.so (0xb7369000+0xa3c4) [0xb73733c4]
18: /usr/bin/X (0x8048000+0xdb278) [0x8123278]
19: /usr/lib/xorg/modules/libexa.so (0xb7369000+0xc679) [0xb7375679]
20: /usr/bin/X (0x8048000+0xdaae9) [0x8122ae9]
21: /usr/bin/X (CompositeGlyphs+0xb0) [0x81bea90]
22: /usr/bin/X (0x8048000+0xd4463) [0x811c463]
23: /usr/bin/X (0x8048000+0xd0293) [0x8118293]
24: /usr/bin/X (0x8048000+0x26087) [0x806e087]
25: /usr/bin/X (0x8048000+0x1a5ba) [0x80625ba]
26: /lib/libc.so.6 (__libc_start_main+0xe7) [0xb759fce7]
27: /usr/bin/X (0x8048000+0x1a191) [0x8062191]

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https://bugs.launchpad.net/bugs/678137

Title:
  Xorg freezes, mouse pointer still moves