Reverting c1a5a70b51f12dedf354102217c7cd4247ed3a4b from libXi fixed the issue for me. I haven't looked into why, but the patch's changes are certainly related:
good: libXi-1.5.99.3 bad: libXi-1.6.0 $ git bisect log # bad: [70b730b0548ca9e408f14f2576b972beb32a0ad0] libXi 1.6.0 # good: [34964b05c16161de65709d60799b9ad97ce56296] libXi 1.5.99.3 git bisect start 'libXi-1.6.0' 'libXi-1.5.99.3' # bad: [1b9f0394c3d4d3833f8560ae8170a4d5842419ab] Fix XIScrollClass increment value on 32-bit machines git bisect bad 1b9f0394c3d4d3833f8560ae8170a4d5842419ab # bad: [c1a5a70b51f12dedf354102217c7cd4247ed3a4b] Fix bus error on MIPS N32 for bug #38331. git bisect bad c1a5a70b51f12dedf354102217c7cd4247ed3a4b c1a5a70b51f12dedf354102217c7cd4247ed3a4b is the first bad commit commit c1a5a70b51f12dedf354102217c7cd4247ed3a4b Author: Michał Masłowski <[email protected]> Date: Tue Feb 21 20:54:40 2012 +0100 Fix bus error on MIPS N32 for bug #38331. XIValuatorClassInfo and XIScrollClassInfo might have an address of 4 bytes modulo 8, while they contain doubles which need 8 byte alignment. This is fixed by adding extra padding after each structure or array in sizeDeviceClassType and adding helper functions to determine sizes and padding only in one place. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=38331 Signed-off-by: Michał Masłowski <[email protected]> Signed-off-by: Peter Hutterer <[email protected]> :040000 040000 6b49f07dcdd66ae31add8e9b543e6d6a0586231c a389cffc1796584cc7e90ea296b57f7ecf2224d9 M src On Mar 14, 2012, at 5:06 PM, Peter Hutterer <[email protected]> wrote: >> (gdb) print b->num_buttons >> $24 = 7 >> (gdb) print b->labels[-1] >> $25 = 498216206336 >> >> Based on xlsatoms, I'd expect 116-122 as the button atoms: >> 116 Button Left >> 117 Button Middle >> 118 Button Right >> 119 Button Wheel Up >> 120 Button Wheel Down >> 121 Button Horiz Wheel Left >> 122 Button Horiz Wheel Right >> >> It works when the client is i386/Linux or i386/darwin and fails when >> x86_64/darwin, ppc/Linux, or ppc64/Linux ... is this possibly an inputproto >> issue? > > libXi or xinput, I suspect. curious though, since it works fine here in > x86_64. Can you bisect libXi from 1.5.99.2 to 1.6.0, I wonder if we > introduced a bug here with the alignments. > > 2d638fc37b0dbf28e5c826f74f68ada83a8c3e2b is another possible candidate to > revert and test. > > put a breakpoint in libXi's copy_classes on the XIButtonClass case and see > what comes down the wire and where the offset is introduced. if it's already > wrong on the wire, then the server has a bug here. > > Cheers, > Peter _______________________________________________ [email protected]: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
