Пример #1
0
int DebuggerProxy::getStackDepth() {
  TRACE(2, "DebuggerProxy::getStackDepth\n");
  int depth = 0;
  auto fp = vmfp();
  if (!fp) return 0;
  fp = fp->sfp();
  while (fp) {
    fp = fp->sfp();
    depth++;
  }
  return depth;
}
void AbiCollab::_shutdownAsMaster()
{
    UT_DEBUGMSG(("AbiCollab::_shutdownAsMaster()\n"));
    UT_return_if_fail(m_pController == BuddyPtr());
    UT_return_if_fail(!m_bProposedController);

    AbiCollabSessionManager* pManager = AbiCollabSessionManager::getManager();
    UT_return_if_fail(pManager);

    // the session takeover is complete; inform everyone that all session data
    // is flushed, and that everyone should talk to the new master from now on
    SessionFlushedPacket sfp(m_sId, m_pDoc->getDocUUIDString());
    for (std::map<BuddyPtr, std::string>::iterator it = m_vCollaborators.begin(); it != m_vCollaborators.end(); it++)
    {
        BuddyPtr pBuddy = (*it).first;
        UT_continue_if_fail(pBuddy);
        pBuddy->getHandler()->send(&sfp, pBuddy);
    }

    // session takeover is done as far as the leaving session contoller is concerned
    pManager->endAsyncOperation(this);
}
Пример #3
0
int main(int argc, char *argv[])
{
  int rv;
  char *full;

  if (argc != 3) {
    fprintf(stderr, 
        "usage:\n"
        "    sbsnarf full-path-to-sb output-bytecode-file\n\n");
    return -1;
  }

  full = realpath(argv[1], NULL);
  printf("[+] full path to sb: \"%s\"\n", full);

  void *h = dlopen("libsandbox.1.dylib", RTLD_FIRST | RTLD_LAZY | RTLD_LOCAL);
  if (NULL == h) {
    errx(-1, "dlopen failed: %s", dlerror());
  }

  void *(*scf)(char *, int, char **) = dlsym(h, "sandbox_compile_file");
  if (NULL == scf) {
    errx(-1, "dlsym failed: %s", dlerror());
  }

  void (*sfp)(void *) = dlsym(h, "sandbox_free_profile");
  if (NULL == sfp) {
    errx(-1, "dlsym failed: %s", dlerror());
  }

  char *error;
  struct {
    unsigned int type;
    user_addr_t bytecode;
    user_size_t bytecode_length;
  } *sb = scf(full, 0, &error);
  if (NULL == sb) {
    dlclose(h);
    errx(-1, "sandbox_compile_file failed: %s", error);
  }

  if (NULL != error) {
    free(error);
  }

  FILE *f_out = fopen(argv[2], "wb");
  if (NULL == f_out) {
    sfp(sb);
    dlclose(h);
    err(-1, "fopen failed:");
  }

  rv = fwrite((void *) sb->bytecode, sb->bytecode_length, 1, f_out);
  if (1 != rv) {
    sfp(sb);
    dlclose(h);
    err(-1, "fwrite failed:");    
  }
  
  fclose(f_out);
  sfp(sb);
  dlclose(h);

  printf("[+] success!\n");

  return 0;
}
Пример #4
0
PWIZ_API_DECL void initializeTiny(MSData& msd)
{
    msd.id = "urn:lsid:psidev.info:mzML.instanceDocuments.tiny.pwiz";

    // cvList

    msd.cvs = defaultCVList();

    // fileDescription

    FileContent& fc = msd.fileDescription.fileContent;
    fc.set(MS_MSn_spectrum);
    fc.set(MS_centroid_spectrum);

    SourceFilePtr sfp(new SourceFile);
    sfp->id = "tiny1.yep";
    sfp->name = "tiny1.yep";
    sfp->location = "file://*****:*****@higglesworth.edu");

    // paramGroupList

    ParamGroupPtr pg1(new ParamGroup);
    pg1->id = "CommonMS1SpectrumParams";
    pg1->set(MS_MS1_spectrum);
    pg1->set(MS_positive_scan);
    msd.paramGroupPtrs.push_back(pg1);

    ParamGroupPtr pg2(new ParamGroup);
    pg2->id = "CommonMS2SpectrumParams";
    pg2->set(MS_MSn_spectrum);
    pg2->set(MS_negative_scan);
    msd.paramGroupPtrs.push_back(pg2);

    // sampleList

    SamplePtr samplePtr(new Sample);
    samplePtr->id = "20090101 - Sample 1";
    samplePtr->name = "Sample 1";
    msd.samplePtrs.push_back(samplePtr);

    // instrumentConfigurationList

    InstrumentConfigurationPtr instrumentConfigurationPtr(new InstrumentConfiguration("LCQ Deca"));
    instrumentConfigurationPtr->set(MS_LCQ_Deca);
    instrumentConfigurationPtr->set(MS_instrument_serial_number,"23433");
    instrumentConfigurationPtr->componentList.push_back(Component(MS_nanoelectrospray, 1));
    instrumentConfigurationPtr->componentList.push_back(Component(MS_quadrupole_ion_trap, 2));
    instrumentConfigurationPtr->componentList.push_back(Component(MS_electron_multiplier, 3));

    SoftwarePtr softwareCompassXtract(new Software);
    softwareCompassXtract->id = "CompassXtract";
    softwareCompassXtract->set(MS_CompassXtract);
    softwareCompassXtract->version = "2.0.5";
    instrumentConfigurationPtr->softwarePtr = softwareCompassXtract;

    msd.instrumentConfigurationPtrs.push_back(instrumentConfigurationPtr);

    // softwareList

    SoftwarePtr softwareBioworks(new Software);
    softwareBioworks->id = "Bioworks";
    softwareBioworks->set(MS_Bioworks);
    softwareBioworks->version = "3.3.1 sp1";
     
    SoftwarePtr softwarepwiz(new Software);
    softwarepwiz->id = "pwiz";
    softwarepwiz->set(MS_pwiz);
    softwarepwiz->version = "1.0";

    msd.softwarePtrs.push_back(softwareBioworks);
    msd.softwarePtrs.push_back(softwarepwiz);
    msd.softwarePtrs.push_back(softwareCompassXtract);

    // dataProcessingList

    DataProcessingPtr dpCompassXtract(new DataProcessing);
    dpCompassXtract->id = "CompassXtract processing";
    
    ProcessingMethod procCXT;
    procCXT.order = 1;
    procCXT.softwarePtr = softwareCompassXtract;
    procCXT.set(MS_deisotoping);
    procCXT.set(MS_charge_deconvolution);
    procCXT.set(MS_peak_picking);

    dpCompassXtract->processingMethods.push_back(procCXT);

    DataProcessingPtr dppwiz(new DataProcessing("pwiz_processing"));

    ProcessingMethod procpwiz;
    procpwiz.order = 2;
    procpwiz.softwarePtr = softwarepwiz;
    procpwiz.set(MS_Conversion_to_mzML);

    dppwiz->processingMethods.push_back(procpwiz);
 
    msd.dataProcessingPtrs.push_back(dpCompassXtract);
    //msd.dataProcessingPtrs.push_back(dppwiz);

    ScanSettingsPtr as1(new ScanSettings("tiny scan settings"));
    as1->sourceFilePtrs.push_back(sfp_parameters);

    Target t1;
    t1.set(MS_selected_ion_m_z, 1000, MS_m_z);
    Target t2;
    t2.set(MS_selected_ion_m_z, 1200, MS_m_z);
    as1->targets.push_back(t1);
    as1->targets.push_back(t2);
    msd.scanSettingsPtrs.push_back(as1);


    // run

    msd.run.id = "Experiment 1";
    msd.run.defaultInstrumentConfigurationPtr = instrumentConfigurationPtr;
    msd.run.samplePtr = samplePtr;
    msd.run.startTimeStamp = "2007-06-27T15:23:45.00035";
    msd.run.defaultSourceFilePtr = sfp;

    shared_ptr<SpectrumListSimple> spectrumList(new SpectrumListSimple);
    msd.run.spectrumListPtr = spectrumList;

    spectrumList->dp = dppwiz;
    spectrumList->spectra.push_back(SpectrumPtr(new Spectrum));
    spectrumList->spectra.push_back(SpectrumPtr(new Spectrum));
    spectrumList->spectra.push_back(SpectrumPtr(new Spectrum));
    spectrumList->spectra.push_back(SpectrumPtr(new Spectrum));
    spectrumList->spectra.push_back(SpectrumPtr(new Spectrum));

    Spectrum& s19 = *spectrumList->spectra[0];
    s19.id = "scan=19";
    s19.index = 0;

    s19.set(MS_ms_level, 1);

    s19.set(MS_centroid_spectrum);
    s19.set(MS_lowest_observed_m_z, 400.39, MS_m_z);
    s19.set(MS_highest_observed_m_z, 1795.56, MS_m_z);
    s19.set(MS_base_peak_m_z, 445.347, MS_m_z);
    s19.set(MS_base_peak_intensity, 120053, MS_number_of_detector_counts);
    s19.set(MS_total_ion_current, 1.66755e+007);

    s19.paramGroupPtrs.push_back(pg1);
    s19.scanList.scans.push_back(Scan());
    s19.scanList.set(MS_no_combination);
    Scan& s19scan = s19.scanList.scans.back();
    s19scan.instrumentConfigurationPtr = instrumentConfigurationPtr;
    s19scan.set(MS_scan_start_time, 5.890500, UO_minute);
    s19scan.set(MS_filter_string, "+ c NSI Full ms [ 400.00-1800.00]");
    s19scan.set(MS_preset_scan_configuration, 3);
    s19scan.scanWindows.resize(1);
    ScanWindow& window = s19.scanList.scans.back().scanWindows.front();
    window.set(MS_scan_window_lower_limit, 400.000000, MS_m_z);
    window.set(MS_scan_window_upper_limit, 1800.000000, MS_m_z);

    BinaryDataArrayPtr s19_mz(new BinaryDataArray);
    s19_mz->dataProcessingPtr = dpCompassXtract;
    s19_mz->set(MS_m_z_array, "", MS_m_z);
    s19_mz->data.resize(15);
    for (int i=0; i<15; i++)
        s19_mz->data[i] = i;

    BinaryDataArrayPtr s19_intensity(new BinaryDataArray);
    s19_intensity->dataProcessingPtr = dpCompassXtract;
    s19_intensity->set(MS_intensity_array, "", MS_number_of_detector_counts);
    s19_intensity->data.resize(15);
    for (int i=0; i<15; i++)
        s19_intensity->data[i] = 15-i;

    s19.binaryDataArrayPtrs.push_back(s19_mz);
    s19.binaryDataArrayPtrs.push_back(s19_intensity);
    s19.defaultArrayLength = s19_mz->data.size();

    Spectrum& s20 = *spectrumList->spectra[1];
    s20.id = "scan=20";
    s20.index = 1;

    s20.paramGroupPtrs.push_back(pg2);
    s20.set(MS_ms_level, 2);

    s20.set(MS_profile_spectrum);
    s20.set(MS_lowest_observed_m_z, 320.39, MS_m_z);
    s20.set(MS_highest_observed_m_z, 1003.56, MS_m_z);
    s20.set(MS_base_peak_m_z, 456.347, MS_m_z);
    s20.set(MS_base_peak_intensity, 23433, MS_number_of_detector_counts);
    s20.set(MS_total_ion_current, 1.66755e+007);

    s20.precursors.resize(1);
    Precursor& precursor = s20.precursors.front();
    precursor.spectrumID= s19.id;
    precursor.isolationWindow.set(MS_isolation_window_target_m_z, 445.3, MS_m_z);
    precursor.isolationWindow.set(MS_isolation_window_lower_offset, .5, MS_m_z);
    precursor.isolationWindow.set(MS_isolation_window_upper_offset, .5, MS_m_z);
    precursor.selectedIons.resize(1);
    precursor.selectedIons[0].set(MS_selected_ion_m_z, 445.34, MS_m_z);
    precursor.selectedIons[0].set(MS_peak_intensity, 120053, MS_number_of_detector_counts);
    precursor.selectedIons[0].set(MS_charge_state, 2);
    precursor.activation.set(MS_collision_induced_dissociation);
    precursor.activation.set(MS_collision_energy, 35.00, UO_electronvolt);

    s20.scanList.scans.push_back(Scan());
    s20.scanList.set(MS_no_combination);
    Scan& s20scan = s20.scanList.scans.back();
    s20scan.instrumentConfigurationPtr = instrumentConfigurationPtr;
    s20scan.set(MS_scan_start_time, 5.990500, UO_minute);
    s20scan.set(MS_filter_string, "+ c d Full ms2  [email protected] [ 110.00-905.00]");
    s20scan.set(MS_preset_scan_configuration, 4);
    s20scan.scanWindows.resize(1);
    ScanWindow& window2 = s20scan.scanWindows.front();
    window2.set(MS_scan_window_lower_limit, 110.000000, MS_m_z);
    window2.set(MS_scan_window_upper_limit, 905.000000, MS_m_z);

    BinaryDataArrayPtr s20_mz(new BinaryDataArray);
    s20_mz->dataProcessingPtr = dpCompassXtract;
    s20_mz->set(MS_m_z_array, "", MS_m_z);
    s20_mz->data.resize(10);
    for (int i=0; i<10; i++)
        s20_mz->data[i] = i*2;

    BinaryDataArrayPtr s20_intensity(new BinaryDataArray);
    s20_intensity->dataProcessingPtr = dpCompassXtract;
    s20_intensity->set(MS_intensity_array, "", MS_number_of_detector_counts);
    s20_intensity->data.resize(10);
    for (int i=0; i<10; i++)
        s20_intensity->data[i] = (10-i)*2;

    s20.binaryDataArrayPtrs.push_back(s20_mz);
    s20.binaryDataArrayPtrs.push_back(s20_intensity);
    s20.defaultArrayLength = s20_mz->data.size();

    // spectrum with no data

    Spectrum& s21 = *spectrumList->spectra[2];
    s21.id = "scan=21";
    s21.index = 2;

    s21.paramGroupPtrs.push_back(pg1);
    s21.set(MS_ms_level, 1);
    s21.set(MS_centroid_spectrum);
    s21.userParams.push_back(UserParam("example", "spectrum with no data"));
    s21.setMZIntensityArrays(vector<double>(), vector<double>(), MS_number_of_detector_counts);

    s21.scanList.scans.push_back(Scan());
    s21.scanList.scans.back().instrumentConfigurationPtr = instrumentConfigurationPtr;
    s21.scanList.set(MS_no_combination);

    // Cover ETD, ETD+SA, and ECD precursor activation mode usage

    Spectrum& s22 = *spectrumList->spectra[3];
    s22.id = "scan=22";
    s22.index = 3;

    s22.paramGroupPtrs.push_back(pg2);
    s22.set(MS_ms_level, 2);

    s22.set(MS_profile_spectrum);
    s22.set(MS_lowest_observed_m_z, 320.39, MS_m_z);
    s22.set(MS_highest_observed_m_z, 1003.56, MS_m_z);
    s22.set(MS_base_peak_m_z, 456.347, MS_m_z);
    s22.set(MS_base_peak_intensity, 23433, MS_number_of_detector_counts);
    s22.set(MS_total_ion_current, 1.66755e+007);

    s22.precursors.resize(1);
    Precursor& precursor22 = s22.precursors.front();
    precursor22.spectrumID= s19.id;
    precursor22.isolationWindow.set(MS_isolation_window_target_m_z, 545.3, MS_m_z);
    precursor22.isolationWindow.set(MS_isolation_window_lower_offset, .5, MS_m_z);
    precursor22.isolationWindow.set(MS_isolation_window_upper_offset, .5, MS_m_z);
    precursor22.selectedIons.resize(1);
    precursor22.selectedIons[0].set(MS_selected_ion_m_z, 545.34, MS_m_z);
    precursor22.selectedIons[0].set(MS_peak_intensity, 120053, MS_number_of_detector_counts);
    precursor22.selectedIons[0].set(MS_charge_state, 2);
    precursor22.activation.set(MS_ETD);
    precursor22.activation.set(MS_CID);
    precursor22.activation.set(MS_collision_energy, 60.00, UO_electronvolt);
    s22.scanList.scans.push_back(Scan());
    s22.scanList.set(MS_no_combination);
    Scan& s22scan = s22.scanList.scans.back();
    s22scan.instrumentConfigurationPtr = instrumentConfigurationPtr;
    s22scan.set(MS_scan_start_time, 6.5, UO_minute);
    s22scan.set(MS_filter_string, "+ c d Full ms2  [email protected] [ 110.00-905.00]");
    s22scan.set(MS_preset_scan_configuration, 4);
    s22scan.scanWindows.resize(1);
    window2 = s22scan.scanWindows.front();
    window2.set(MS_scan_window_lower_limit, 110.000000, MS_m_z);
    window2.set(MS_scan_window_upper_limit, 905.000000, MS_m_z);

    BinaryDataArrayPtr s22_mz(new BinaryDataArray);
    s22_mz->dataProcessingPtr = dpCompassXtract;
    s22_mz->set(MS_m_z_array, "", MS_m_z);
    s22_mz->data.resize(10);
    for (int i=0; i<10; i++)
        s22_mz->data[i] = i*2;

    BinaryDataArrayPtr s22_intensity(new BinaryDataArray);
    s22_intensity->dataProcessingPtr = dpCompassXtract;
    s22_intensity->set(MS_intensity_array, "", MS_number_of_detector_counts);
    s22_intensity->data.resize(10);
    for (int i=0; i<10; i++)
        s22_intensity->data[i] = (10-i)*2;

    s22.binaryDataArrayPtrs.push_back(s22_mz);
    s22.binaryDataArrayPtrs.push_back(s22_intensity);
    s22.defaultArrayLength = s22_mz->data.size();

    // spectrum with MALDI spot information
    Spectrum& s23 = *spectrumList->spectra[4];
    s23.id = "sample=1 period=1 cycle=23 experiment=1";
    s23.index = 4;
    s23.spotID = "A1,42x42,4242x4242";
    s23.sourceFilePtr = sfp2;

    s23.set(MS_ms_level, 1);
    s23.set(MS_centroid_spectrum);
    s23.set(MS_lowest_observed_m_z, 142.39, MS_m_z);
    s23.set(MS_highest_observed_m_z, 942.56, MS_m_z);
    s23.set(MS_base_peak_m_z, 422.42, MS_m_z);
    s23.set(MS_base_peak_intensity, 42, MS_number_of_detector_counts);
    s23.set(MS_total_ion_current, 4200);
    s23.userParams.push_back(UserParam("alternate source file", "to test a different nativeID format"));
    s23.paramGroupPtrs.push_back(pg1);
    s23.scanList.scans.push_back(Scan());
    s23.scanList.set(MS_no_combination);
    Scan& s23scan = s23.scanList.scans.back();
    s23scan.instrumentConfigurationPtr = instrumentConfigurationPtr;
    s23scan.set(MS_scan_start_time, 42.0500, UO_second);
    s23scan.set(MS_filter_string, "+ c MALDI Full ms [100.00-1000.00]");
    s23scan.scanWindows.resize(1);
    ScanWindow& window3 = s23scan.scanWindows.front();
    window3.set(MS_scan_window_lower_limit, 100.000000, MS_m_z);
    window3.set(MS_scan_window_upper_limit, 1000.000000, MS_m_z);

    s23.binaryDataArrayPtrs.push_back(s19_mz);
    s23.binaryDataArrayPtrs.push_back(s19_intensity);
    s23.defaultArrayLength = s19_mz->data.size();


    // chromatograms

    shared_ptr<ChromatogramListSimple> chromatogramList(new ChromatogramListSimple);
    msd.run.chromatogramListPtr = chromatogramList;

    chromatogramList->dp = dppwiz;
    chromatogramList->chromatograms.push_back(ChromatogramPtr(new Chromatogram));
    chromatogramList->chromatograms.push_back(ChromatogramPtr(new Chromatogram));

    Chromatogram& tic = *chromatogramList->chromatograms[0];
    tic.id = "tic";
    tic.index = 0;
    tic.defaultArrayLength = 15;
    tic.dataProcessingPtr = dpCompassXtract;
    tic.set(MS_total_ion_current_chromatogram);

    BinaryDataArrayPtr tic_time(new BinaryDataArray);
    tic_time->dataProcessingPtr = dppwiz;
    tic_time->set(MS_time_array, "", UO_second);
    tic_time->data.resize(15);
    for (int i=0; i<15; i++)
        tic_time->data[i] = i;

    BinaryDataArrayPtr tic_intensity(new BinaryDataArray);
    tic_intensity->dataProcessingPtr = dppwiz;
    tic_intensity->set(MS_intensity_array, "", MS_number_of_detector_counts);
    tic_intensity->data.resize(15);
    for (int i=0; i<15; i++)
        tic_intensity->data[i] = 15-i;

    tic.binaryDataArrayPtrs.push_back(tic_time);
    tic.binaryDataArrayPtrs.push_back(tic_intensity);

    Chromatogram& sic = *chromatogramList->chromatograms[1];
    sic.id = "sic";
    sic.index = 1;
    sic.defaultArrayLength = 10;
    sic.dataProcessingPtr = dppwiz;
    sic.set(MS_selected_ion_current_chromatogram);

    sic.precursor.isolationWindow.set(MS_isolation_window_target_m_z, 456.7, MS_m_z);
    sic.precursor.activation.set(MS_CID);
    sic.product.isolationWindow.set(MS_isolation_window_target_m_z, 678.9, MS_m_z);

    BinaryDataArrayPtr sic_time(new BinaryDataArray);
    sic_time->dataProcessingPtr = dppwiz;
    sic_time->set(MS_time_array, "", UO_second);
    sic_time->data.resize(10);
    for (int i=0; i<10; i++)
        sic_time->data[i] = i;

    BinaryDataArrayPtr sic_intensity(new BinaryDataArray);
    sic_intensity->dataProcessingPtr = dppwiz;
    sic_intensity->set(MS_intensity_array, "", MS_number_of_detector_counts);
    sic_intensity->data.resize(10);
    for (int i=0; i<10; i++)
        sic_intensity->data[i] = 10-i;

    sic.binaryDataArrayPtrs.push_back(sic_time);
    sic.binaryDataArrayPtrs.push_back(sic_intensity);

} // initializeTiny()
Пример #5
0
PRIVATE inline
L4_msg_tag
Thread_object::sys_vcpu_resume(L4_msg_tag const &tag, Utcb *utcb)
{
  if (this != current() || !(state() & Thread_vcpu_enabled))
    return commit_result(-L4_err::EInval);

  Space *s = space();
  Vcpu_state *vcpu = vcpu_state().access(true);

  L4_obj_ref user_task = vcpu->user_task;
  if (user_task.valid())
    {
      L4_fpage::Rights task_rights = L4_fpage::Rights(0);
      Task *task = Kobject::dcast<Task*>(s->lookup_local(user_task.cap(),
                                                         &task_rights));

      if (EXPECT_FALSE(task && !(task_rights & L4_fpage::Rights::W())))
        return commit_result(-L4_err::EPerm);

      if (task != vcpu_user_space())
        vcpu_set_user_space(task);

      vcpu->user_task = L4_obj_ref();
    }
  else if (user_task.op() == L4_obj_ref::Ipc_reply)
    vcpu_set_user_space(0);

  L4_snd_item_iter snd_items(utcb, tag.words());
  int items = tag.items();
  if (vcpu_user_space())
    for (; items && snd_items.more(); --items)
      {
        if (EXPECT_FALSE(!snd_items.next()))
          break;

        Lock_guard<Lock> guard;
        if (!guard.check_and_lock(&static_cast<Task *>(vcpu_user_space())->existence_lock))
          return commit_result(-L4_err::ENoent);

        cpu_lock.clear();

        L4_snd_item_iter::Item const *const item = snd_items.get();
        L4_fpage sfp(item->d);

        Reap_list rl;
        L4_error err = fpage_map(space(), sfp,
                                 vcpu_user_space(), L4_fpage::all_spaces(),
                                 item->b, &rl);
        rl.del();

        cpu_lock.lock();

        if (EXPECT_FALSE(!err.ok()))
          return commit_error(utcb, err);
      }

  if ((vcpu->_saved_state & Vcpu_state::F_irqs)
      && (vcpu->sticky_flags & Vcpu_state::Sf_irq_pending))
    {
      assert_kdb(cpu_lock.test());
      do_ipc(L4_msg_tag(), 0, 0, true, 0,
	     L4_timeout_pair(L4_timeout::Zero, L4_timeout::Zero),
	     &vcpu->_ipc_regs, L4_fpage::Rights::FULL());

      vcpu = vcpu_state().access(true);

      if (EXPECT_TRUE(!vcpu->_ipc_regs.tag().has_error()
	              || this->utcb().access(true)->error.error() == L4_error::R_timeout))
	{
	  vcpu->_ts.set_ipc_upcall();

	  Address sp;

	  // tried to resume to user mode, so an IRQ enters from user mode
	  if (vcpu->_saved_state & Vcpu_state::F_user_mode)
            sp = vcpu->_entry_sp;
	  else
            sp = vcpu->_ts.sp();

          arch_load_vcpu_kern_state(vcpu, true);

	  LOG_TRACE("VCPU events", "vcpu", this, Vcpu_log,
	      l->type = 4;
	      l->state = vcpu->state;
	      l->ip = vcpu->_entry_ip;
	      l->sp = sp;
	      l->space = static_cast<Task*>(_space.vcpu_aware())->dbg_id();
	      );