Bug 36986

Summary:	Check failure on x86: input.c:1216:dix_valuator_alloc: assertion failed: (((void)v->axisVal - (void)v) % sizeof(double) == 0)
Product:	xorg	Reporter:	Cyril Brulebois <kibi>
Component:	Server/General	Assignee:	Xorg Project Team <xorg-team>
Status:	RESOLVED FIXED	QA Contact:	Xorg Project Team <xorg-team>
Severity:	major
Priority:	medium	CC:	jeremyhu, kibi
Version:	unspecified
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:
Bug Depends on:
Bug Blocks:	31018

Description Cyril Brulebois 2011-05-08 19:46:03 UTC

1.10.1 builds fine; 1.10.2rc1 doesn't, but only on *i386 (see: https://buildd.debian.org/status/logs.php?pkg=xorg-server&ver=2%3A1.10.1.901-1).

The addition of a related test in d6328c6bfe49 would explain that, yay for testsuites!

If you need a quick cheatsheet: http://wiki.debian.org/ArchitectureSpecificsMemo

Test failure:
-------------
/dix/input/valuator-alloc: **
ERROR:../../test/input.c:1216:dix_valuator_alloc: assertion failed: (((void*)v->axisVal - (void*)v) % sizeof(double) == 0)
/bin/bash: line 5: 26606 Aborted                 ${dir}$tst
FAIL: input

Comment 1 Cyril Brulebois 2011-05-10 05:18:29 UTC

Looking at the size of the structure, I get 52.

Each member is of size 4, except:
    unsigned short        numAxes;           ---> 2
    ValuatorAccelerationRec     accelScheme; ---> 16

That means a total of 50, with numAxes getting probably aligned, taking 4 instead of 2, leading up to the total of 52.

Comment 2 Peter Hutterer 2011-05-17 23:11:43 UTC

http://patchwork.freedesktop.org/patch/5484/

Comment 3 Jeremy Huddleston Sequoia 2011-06-17 10:55:11 UTC

This test is fixed in 1.10 and master.

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