Created attachment 522315 [details]
Full bt log

Description of problem:

I'm recently noticing, that when kill my Xserver - it ends with black console screen and save Xorg coredump.

Here it bt (though might not match exactly since my running Xorg has been replaced with updated version during some upgrade) - it seems to look reasonably well - thus I'm adding it here as the probably source of troubles.

Looks like it's doing some copy to already released memory ?

My hw - T61, intel graphics


#0  0x00007fd2ff4e443d in __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:246
#1  0x000000000055700a in mieqEnqueue (pDev=0x3a41d90, e=0x1ade0f0) at mieq.c:202
#2  0x0000000000446d53 in queueEventList (device=0x3a41d90, events=0x1ade0f0, nevents=<optimized out>) at getevents.c:933
#3  0x00000000004945d2 in xf86ScaleAxis (Cx=608, to_max=28173120, to_min=592, from_max=<optimized out>, from_min=596) at xf86Xinput.c:1304
#4  0x00007fd2fbbba060 in EvdevPostQueuedEvents (v=0x7ffffa90a7f0, pInfo=0x16, num_v=<optimized out>, first_v=<optimized out>)
    at evdev.c:769
#5  EvdevProcessSyncEvent (ev=<optimized out>, pInfo=0x16) at evdev.c:811
#6  EvdevProcessEvent (ev=<optimized out>, pInfo=0x16) at evdev.c:843
#7  EvdevReadInput (pInfo=0x16) at evdev.c:891
#8  0x000000000047ef48 in xf86SigioReadInput (fd=<optimized out>, closure=0x3a408b0) at xf86Events.c:298
#9  0x00000000004a4780 in xf86RemoveSIGIOHandler (fd=608) at ../shared/sigio.c:213
#10 <signal handler called>
#11 0x00007fd2ff3e55f0 in kill () at ../sysdeps/unix/syscall-template.S:84
#12 0x00000000004291b0 in CloseDeviceList (listHead=0x7e58e8) at devices.c:968
#13 0x0000000000429722 in CloseDownDevices () at devices.c:996
#14 0x0000000000422df4 in main (argc=<optimized out>, argv=0x7ffffa90b078, envp=<optimized out>) at main.c:319


(gdb) up
#1  0x000000000055700a in mieqEnqueue (pDev=0x3a41d90, e=0x1ade0f0) at mieq.c:202
202	    miEventQueue.events[oldtail].pScreen = pDev ? EnqueueScreen(pDev) : NULL;
(gdb) print pDev
$1 = (struct _DeviceIntRec *) 0x3a41d90
(gdb) print *pDev
$2 = {public = {devicePrivate = 0x3a408b0, processInputProc = 0x5380c0 <ProcessKeyboardEvent+80>, 
    realInputProc = 0x5380c0 <ProcessKeyboardEvent+80>, enqueueInputProc = 0x43b460 <EnqueueEvent>, on = 1}, next = 0x3a47e20, 
  startup = 1, deviceProc = 0x7fd2fbbbac00 <EvdevProc>, inited = 1, enabled = 1, coreEvents = 4, deviceGrab = {grabTime = {months = 0, 
      milliseconds = 2394344}, fromPassiveGrab = 0, implicitGrab = 0, activeGrab = {next = 0x0, resource = 0, device = 0x0, window = 0x0, 
      ownerEvents = 0, keyboardMode = 0, pointerMode = 0, grabtype = GRABTYPE_CORE, type = 0 '\000', modifiersDetail = {exact = 0, 
        pMask = 0x0}, modifierDevice = 0x0, detail = {exact = 0, pMask = 0x0}, confineTo = 0x0, cursor = 0x0, eventMask = 0, 
      deviceMask = 0, xi2mask = {"\000\000" <repeats 42 times>}}, grab = 0x0, activatingKey = 0 '\000', 
    ActivateGrab = 0x442d30 <ActivateKeyboardGrab>, DeactivateGrab = 0x442b00 <DeactivateKeyboardGrab>, sync = {frozen = 0, state = 0, 
      other = 0x0, event = 0x0}}, type = 3, xinput_type = 92, name = 0x3a422e0 "AT Translated Set 2 keyboard", id = 9, key = 0x3a423f0, 
  valuator = 0x0, button = 0x0, focus = 0x3a472d0, proximity = 0x0, kbdfeed = 0x3a42470, ptrfeed = 0x0, intfeed = 0x0, stringfeed = 0x0, 
  bell = 0x0, leds = 0x0, xkb_interest = 0x0, config_info = 0x3a42310 "udev:/sys/devices/platform/i8042/serio0/input/input4/event4", 
  unused_classes = 0x0, saved_master_id = 0, devPrivates = 0x3a42190, unwrapProc = 0x535eb0 <xkbUnwrapProc+80>, spriteInfo = 0x3a42160, 
  master = 0x0, lastSlave = 0x0, last = {valuators = {0 <repeats 36 times>}, remainder = {0 <repeats 36 times>}, numValuators = 0, 
    slave = 0x0}, properties = {properties = 0x3a47390, handlers = 0x3a473e0}, transform = {m = {{0, 0, 0}, {0, 0, 0}, {0, 0, 0}}}, 
  xtest_master_id = 0}


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