Comment 7 for bug 1357631

I'm not so sure that this crash is due to the dock.

@fabounet and Mesa devs: any idea?

#3 0x00007fcb610bd5e6 in malloc_printerr (ptr=<optimized out>, str=0x7fcb611bfd48 "free(): invalid next size (fast)", action=1) at malloc.c:4996
        buf = "0000000002a15c60"
        cp = <optimized out>
#4 _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) at malloc.c:3840
        size = <optimized out>
        fb = <optimized out>
        nextchunk = <optimized out>
        nextsize = <optimized out>
        nextinuse = <optimized out>
        prevsize = <optimized out>
        bck = <optimized out>
        fwd = <optimized out>
        errstr = <optimized out>
        locked = <optimized out>
#5 0x00007fcb51a4ac0c in _math_matrix_dtr (m=0x3367cd8) at ../../../../src/mesa/math/m_matrix.c:1495
No locals.
#6 0x00007fcb519deb2e in free_matrix_stack (stack=stack@entry=0x2f03b30) at ../../../../src/mesa/main/matrix.c:669
        i = 7
#7 0x00007fcb519df6ac in _mesa_free_matrix_data (ctx=ctx@entry=0x2f02ef8) at ../../../../src/mesa/main/matrix.c:728
No locals.
#8 0x00007fcb5198f840 in _mesa_free_context_data (ctx=ctx@entry=0x2f02ef8) at ../../../../src/mesa/main/context.c:1230
No locals.
#9 0x00007fcb51c06e86 in intelDestroyContext (driContextPriv=0x27b26a0) at ../../../../../../../src/mesa/drivers/dri/i965/brw_context.c:841
        brw = 0x2f02ef8
        ctx = 0x2f02ef8
#10 0x00007fcb51ba8163 in driDestroyContext (pcp=0x27b26a0) at ../../../../../../../src/mesa/drivers/dri/common/dri_util.c:487
No locals.
#11 0x00007fcb5c3b2c1f in dri2_destroy_context (context=0x242a400) at ../../../../src/glx/dri2_glx.c:129
        pcp = 0x242a400
        psc = 0x201bdf0
#12 0x00007fcb5c38bc09 in glXDestroyContext (dpy=0x1fb3510, ctx=0x242a400) at ../../../../src/glx/glxcmds.c:473
        ctx = 0x242a400
        dpy = 0x1fb3510
        gc = 0x242a400
#13 0x00007fcb61436529 in reset_object (obj=0x2a9b1f0) at /build/buildd/cairo-dock-3.3.99.beta1.2.really.3.3.2/src/gldit/cairo-dock-container.c:611
        pContainer = 0x2a9b1f0
#14 0x00007fcb6142569f in gldi_object_unref (pObject=0x2a9b1f0) at /build/buildd/cairo-dock-3.3.99.beta1.2.really.3.3.2/src/gldit/cairo-dock-object.c:85
        pMgr = 0x632640 <myContainerObjectMgr>
        pNotificationsTab = <optimized out>
        i = <optimized out>
#15 0x00007fcb61443913 in _free_one_dock (cDockName=<optimized out>, pDock=0x2a9b1f0, data=<optimized out>) at /build/buildd/cairo-dock-3.3.99.beta1.2.really.3.3.2/src/gldit/cairo-dock-dock-manager.c:122
No locals.