Bug 77884 - crash in mieqMoveToNewScreen with xorg 1.15.1 when vt switching with while hammering on the touchpad
Summary: crash in mieqMoveToNewScreen with xorg 1.15.1 when vt switching with while ha...
Status: RESOLVED FIXED
Alias: None
Product: xorg
Classification: Unclassified
Component: Server/Input/Core (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: Peter Hutterer
QA Contact: Xorg Project Team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-04-24 10:10 UTC by Maarten Lankhorst
Modified: 2015-07-07 09:38 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Attachments
0001-mi-don-t-process-events-from-disabled-devices-77884.patch (2.51 KB, patch)
2014-05-20 04:28 UTC, Peter Hutterer 		no flags Details | Splinter Review
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Description Maarten Lankhorst 2014-04-24 10:10:20 UTC 
To reproduce:
- Run xorg-server in valgrind to slow it down enough.
- Hammer on the touchpad like a madman.
- ssh in and chvt away while hammering.
- Observe the following crash in X.org:

[  2444.985] (EE) BUG: triggered 'if (!dev->spriteInfo->sprite)'
[  2444.987] (EE) BUG: ../../mi/mieq.c:497 in mieqMoveToNewScreen()
[  2444.989] (EE)
[  2444.991] (EE) Backtrace:
[  2445.012] (EE) 0: /usr/bin/Xorg (mieqProcessDeviceEvent+0x114) [0x2932b4]
[  2445.019] (EE) 1: /usr/bin/Xorg (mieqProcessInputEvents+0xf7) [0x293447]
[  2445.027] (EE) 2: /usr/bin/Xorg (ProcessInputEvents+0x9) [0x19b159]
[  2445.037] (EE) 3: /usr/bin/Xorg (xf86VTSwitch+0x365) [0x19ba75]
[  2445.046] (EE) 4: /usr/bin/Xorg (WakeupHandler+0x6d) [0x1625ad]
[  2445.056] (EE) 5: /usr/bin/Xorg (WaitForSomething+0x1bf) [0x2ae48f]
[  2445.065] (EE) 6: /usr/bin/Xorg (SendErrorToClient+0xe1) [0x15d9d1]
[  2445.073] (EE) 7: /usr/bin/Xorg (remove_fs_handlers+0x40a) [0x161afa]
[  2445.079] (EE) 8: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf5) [0x6f6dec5]
[  2445.088] (EE) 9: /usr/bin/Xorg (_start+0x29) [0x14cfee]
[  2445.093] (EE) 10: ? (?+0x29) [0x29]
[  2445.094] (EE)
Comment 1 Peter Hutterer 2014-05-20 04:28:27 UTC 
Created attachment 99376 [details] [review]
0001-mi-don-t-process-events-from-disabled-devices-77884.patch
Comment 2 Timo Aaltonen 2015-07-07 09:38:00 UTC 
seems this patch is in 1.17 at least, and seems to be working.. so closing

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