Bug 11802

Summary:

segfault in ProcessInputEvents

Product:

xorg

Reporter:

Julien Cristau <jcristau>

Component:

Server/Input/Core

Assignee:

Xorg Project Team <xorg-team>

Status:

RESOLVED FIXED

QA Contact:

Xorg Project Team <xorg-team>

Severity:

normal

Priority:

medium

CC:

aplattner, peter.hutterer

Version:

git

Hardware:

Other

OS:

All

Whiteboard:

i915 platform:

i915 features:

Bug Depends on:

Bug Blocks:

8888, 10101

Attachments:

Description	Flags
xorg.conf	none
X log	none

Description Julien Cristau 2007-08-01 16:37:45 UTC

When trying xserver 1.3.99.0, i didn't rebuild the synaptics driver, so X failed to load the driver for the relevant InputDevice section in xorg.conf. So far so good. The problem then is that X crashes when switching back to the VT where it is running.
If I remove that spurious InputDevice it's fine.

Comment 1 Julien Cristau 2007-08-01 16:38:52 UTC

Created attachment 10948 [details]
xorg.conf

Comment 2 Julien Cristau 2007-08-01 16:40:27 UTC

Created attachment 10949 [details]
X log

Comment 3 Aaron Plattner 2007-08-16 15:43:57 UTC

I get this too with a freshly installed pair of xf86-input-keyboard and xf86-input-mouse.  Here's the debug backtrace:

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 47879791403504 (LWP 16001)]
0x000000000059d54d in ProcessOtherEvent (xE=0x78af40, other=0x9586a0, count=1)
    at /home/aaron/X/modular/xserver/Xi/exevents.c:274
274             other->valuator->mode &= ~OutOfProximity;
(gdb) bt
#0  0x000000000059d54d in ProcessOtherEvent (xE=0x78af40, other=0x9586a0, 
    count=1) at /home/aaron/X/modular/xserver/Xi/exevents.c:274
#1  0x0000000000521dff in mieqProcessInputEvents ()
    at /home/aaron/X/modular/xserver/mi/mieq.c:249
#2  0x00000000004a66a8 in ProcessInputEvents ()
    at /home/aaron/X/modular/xserver/hw/xfree86/common/xf86Events.c:241
#3  0x00000000004496c4 in Dispatch ()
    at /home/aaron/X/modular/xserver/dix/dispatch.c:421
#4  0x000000000043040e in main (argc=3, argv=0x7fffc9ddbd78, 
    envp=0x7fffc9ddbd98) at /home/aaron/X/modular/xserver/dix/main.c:452
(gdb) p other->valuator
$1 = (ValuatorClassPtr) 0x0

Comment 4 Daniel Stone 2007-08-16 21:41:22 UTC

Either the event type is not actually ProximityIn, or something is really, seriously broken.

Comment 5 Peter Hutterer 2008-01-28 14:34:00 UTC

aaron, julien: is this still an issue?

Comment 6 Aaron Plattner 2008-01-31 10:28:17 UTC

No, this seems to be okay with a server built from commit a125ce.

Comment 7 Peter Hutterer 2008-02-02 04:25:54 UTC

closing the bug, pls reopen if problem occurs again.

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