Xorg crashed with SIGSEGV in DisableDevice (dev=0x8578a98, sendevent=1 '\001')

[Sergio Zanchetta]

Testing Natty pre Alpha 2 20110201.1

#0 XISendDeviceHierarchyEvent (flags=0xbfdc212c)
    at ../../Xi/xichangehierarchy.c:73
 ev = (xXIHierarchyEvent *) 0x0
 info = <value optimized out>
 dummyDev = {public = {devicePrivate = 0x0, processInputProc = 0,
    realInputProc = 0, enqueueInputProc = 0, on = 0}, next = 0x0,
  startup = 0, deviceProc = 0, inited = 0, enabled = 0, coreEvents = 0,
  deviceGrab = {grabTime = {months = 0, milliseconds = 0},
    fromPassiveGrab = 0, implicitGrab = 0, activeGrab = {next = 0x0,
      resource = 0, device = 0x0, window = 0x0, ownerEvents = 0,
      keyboardMode = 0, pointerMode = 0, grabtype = GRABTYPE_CORE,
      type = 0 '\0', 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 '\0', ActivateGrab = 0, DeactivateGrab = 0, sync = {
      frozen = 0, state = 0, other = 0x0, event = 0x0}}, type = 0,
  xinput_type = 0, name = 0x0, id = 0, key = 0x0, valuator = 0x0,
  button = 0x0, focus = 0x0, proximity = 0x0, absolute = 0x0, kbdfeed = 0x0,
  ptrfeed = 0x0, intfeed = 0x0, stringfeed = 0x0, bell = 0x0, leds = 0x0,
  xkb_interest = 0x0, config_info = 0x0, unused_classes = 0x0,
  saved_master_id = 0, devPrivates = 0x0, unwrapProc = 0, spriteInfo = 0x0,
  u = {master = 0x0, lastSlave = 0x0}, last = {valuators = {
      0 <repeats 36 times>}, remainder = {0 <repeats 36 times>},
    numValuators = 0, slave = 0x0}, properties = {properties = 0x0,
    handlers = 0x0}, transform = {m = {{0, 0, 0}, {0, 0, 0}, {0,
        1.2314192865324756e-287, 2.1792897496856476e-311}}},
  xtest_master_id = 139163832}
 dev = <value optimized out>
 i = <value optimized out>
#1 0x08085b04 in DisableDevice (dev=0x8578a98, sendevent=1 '\001')
    at ../../dix/devices.c:810
 prev = <value optimized out>
 other = <value optimized out>
 enabled = 0 '\0'
 flags = {0, 0, 0, 0, 128, 0 <repeats 35 times>}
#2 0xbfdc212c in ?? ()
No symbol table info available.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: xserver-xorg-core 2:1.9.99.901+git20110131.be3be758-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-1.28-generic 2.6.38-rc2
Uname: Linux 2.6.38-1-generic i686
Architecture: i386
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1024x600 1024x600
 edid-base64: AP///////wANrwkCAAAAAB8SAQOQFQx4CrmFlVxZlScbUFQAAAABAQEBAQEBAQEBAQEBAQEB2xMAKEFYKiBRNlcAw3EAAAAaPQ0AKEFYKiBRNlcAw3EAAAAaAAAA/gBLODYySIFOMDg5TDYKAAAAAAAAAAAAAAAAAAEBCiAgAKU=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
Date: Wed Feb 2 14:14:51 2011
DistUpgraded: Fresh install
DistroCodename: natty
DistroVariant: ubuntu
ExecutablePath: /usr/bin/Xorg
GdmLog1: Not present
GdmLog2: Not present
GraphicsCard:
 Subsystem: Dell Device [1028:02b0]
   Subsystem: Dell Device [1028:02b0]
LiveMediaBuild: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110201.1)
MachineType: Dell Inc. Inspiron 910
ProcCmdline: X -br -ac -noreset -nolisten tcp -nr vt7 :0
ProcEnviron:
 LANGUAGE=
 PATH=(custom, no user)
 LANG=en_US.UTF-8
ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
ProcKernelCmdLine_: BOOT_IMAGE=/casper/vmlinuz noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
SegvAnalysis:
 Segfault happened at: 0x813be3e: movb $0x23,(%eax)
 PC (0x0813be3e) ok
 source "$0x23" ok
 destination "(%eax)" (0x00000000) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: xorg-server
StacktraceTop:
 ?? () from /usr/lib/xorg/modules/drivers/intel_drv.so
 ?? ()
 ?? ()
 _start ()
Title: Xorg crashed with SIGSEGV in _start()
UserGroups:

dmi.bios.date: 03/05/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A05
dmi.board.name: CN0J14
dmi.board.vendor: Dell Inc.
dmi.board.version: A05
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A05
dmi.modalias: dmi:bvnDellInc.:bvrA05:bd03/05/2009:svnDellInc.:pnInspiron910:pvrA05:rvnDellInc.:rnCN0J14:rvrA05:cvnDellInc.:ct8:cvrA05:
dmi.product.name: Inspiron 910
dmi.product.version: A05
dmi.sys.vendor: Dell Inc.
version.libdrm2: libdrm2 2.4.23-1ubuntu3
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10-1ubuntu1
version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.13.2+git20110124.fadee040-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-1ubuntu5
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu4

[Apport retracing service (apport)]

StacktraceTop:
 XISendDeviceHierarchyEvent (flags=0xbfdc212c)
 DisableDevice (dev=0x8578a98, sendevent=1 '\001')
 ?? ()