[CentOS] Wacom hotplug Xorg crash

Fri Dec 7 23:09:40 UTC 2012
James Pearson <james-p at moving-picture.com>

We're seeing a number of Xorg crashes with CentOS 6.2 when using a Wacom tablet shared between two machines (the other machine is running Windows) via a KVM

Xorg crashes after switching the KVM back to the CentOS box

I've tried googling for this issue - and have found:


Which has a similar backtrace (although not identical) to ones we are seeing (see below) - but no further info is given on that webpage - but appears to indicated that more info might (?) be available if I have a Red Hat Subscription login - which I don't ...

Would it be possible for someone that does have access to let me know if there is any more Red Hat Knowledge Base information about this issue?

A sample backtrace we have seen is:

0: /usr/bin/Xorg (xorg_backtrace+0x28) [0x4546f8]
1: /usr/bin/Xorg (0x400000+0x58429) [0x458429]
2: /lib64/libpthread.so.0 (0x3db6a00000+0xf4a0) [0x3db6a0f4a0]
3: /usr/lib64/xorg/modules/input/wacom_drv.so (0x7fc69c2c6000+0x48e6) [0x7fc69c2ca8e6]
4: /usr/lib64/xorg/modules/input/wacom_drv.so (0x7fc69c2c6000+0x4ac9) [0x7fc69c2caac9]
5: /usr/lib64/xorg/modules/input/wacom_drv.so (0x7fc69c2c6000+0x4b2d) [0x7fc69c2cab2d]
6: /usr/bin/Xorg (0x400000+0x5f077) [0x45f077]
7: /usr/bin/Xorg (0x400000+0x1158b3) [0x5158b3]
8: /lib64/libpthread.so.0 (0x3db6a00000+0xf4a0) [0x3db6a0f4a0]
9: /lib64/libpthread.so.0 (open64+0x10) [0x3db6a0ed10]
10: /usr/lib64/xorg/modules/input/wacom_drv.so (0x7fc69c2c6000+0x84ec) [0x7fc69c2ce4ec]
11: /usr/bin/Xorg (0x400000+0x61f41) [0x461f41]
12: /usr/lib64/xorg/modules/input/wacom_drv.so (0x7fc69c2c6000+0xd746) [0x7fc69c2d3746]
13: /usr/lib64/xorg/modules/input/wacom_drv.so (0x7fc69c2c6000+0x885b) [0x7fc69c2ce85b]
14: /usr/bin/Xorg (0x400000+0x61f41) [0x461f41]
15: /usr/bin/Xorg (0x400000+0x142099) [0x542099]
16: /usr/lib64/libhal.so.1 (0x3dc2c00000+0xbc08) [0x3dc2c0bc08]
17: /lib64/libdbus-1.so.3 (dbus_connection_dispatch+0x336) [0x3db82109d6]
18: /lib64/libdbus-1.so.3 (0x3db8200000+0x10ca9) [0x3db8210ca9]
19: /usr/bin/Xorg (0x400000+0x13f84b) [0x53f84b]
20: /usr/bin/Xorg (WakeupHandler+0x4b) [0x42421b]
21: /usr/bin/Xorg (WaitForSomething+0x1ef) [0x452d5f]
22: /usr/bin/Xorg (0x400000+0x2ccf2) [0x42ccf2]
23: /usr/bin/Xorg (0x400000+0x21ebb) [0x421ebb]
24: /lib64/libc.so.6 (__libc_start_main+0xfd) [0x3db621ecdd]
25: /usr/bin/Xorg (0x400000+0x21a49) [0x421a49]
Segmentation fault at address (nil)


James Pearson