1. 02 7月, 2015 21 次提交
  2. 01 7月, 2015 14 次提交
    • M
      lxc: Don't pass a local variable address randomly · 302146b1
      Michal Privoznik 提交于
      So, recently I was testing the LXC driver. You know, startup some
      domains. But to my surprise, I was not able to start a single one:
      
        virsh # start --console test
        error: Reconnected to the hypervisor
        error: Failed to start domain test
        error: internal error: guest failed to start: unexpected exit status 125
      
      So I've start digging. It turns out, that in virExec(), when I printed
      out the @cmd, I got strange values: *(cmd->outfdptr) was certainly not
      valid FD number: it has random value of several millions. This
      obviously made prepareStdFd(childout, STDOUT_FILENO) fail (line 611).
      But outfdptr is set in virCommandSetOutputFD(). The only place within
      LXC driver where the function is called is in
      virLXCProcessBuildControllerCmd(). If you take a closer look at the
      function it looks like this:
      
      static virCommandPtr
      virLXCProcessBuildControllerCmd(virLXCDriverPtr driver,
                                      ..
                                      int logfd,
                                      const char *pidfile)
      {
          ...
          virCommandSetOutputFD(cmd, &logfd);
          virCommandSetErrorFD(cmd, &logfd);
          ...
      }
      
      Yes, you guessed it. @logfd is passed into the function by value.
      However, in the function we try to get its address (an address of a
      local variable) which is no longer valid once function is finished and
      stack is cleaned. Therefore when cmd->outfdptr is evaluated at any
      point after this function, we may get a random number, depending on
      what's currently on the stack. Of course, this may work sometimes too
      - it depends on the compiler how it arranges the code, when the stack
      is wiped out.
      
      In order to fix this, lets pass a pointer to @logfd instead of
      figuring out (wrong) its value in a function.
      
      The bug was introduced in e1de5521.
      Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
      302146b1
    • J
      qemu: Resolve Coverity DEADCODE · ebd62eba
      John Ferlan 提交于
      Commit id 'f967e7a6' didn't place the closing parentheses quite right
      causing DEADCODE errors since the rc setting/comparison was wrong.
      ebd62eba
    • P
      conf: qemu: Taint VMs using custom device tree blob · 4b48ba4a
      Peter Krempa 提交于
      Using a custom device tree image may cause unexpected behavior in
      architectures that use this approach to detect platform devices. Since
      usually the device tree is generated by qemu and thus it's not normally
      used let's taint VMs using it to make it obvious as a possible source of
      problems.
      4b48ba4a
    • P
      qemu: Audit memory size with memory hotplug operations · 91081979
      Peter Krempa 提交于
      The memory device hot(un)plug was missing calls to the auditing code.
      
      Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1226234
      91081979
    • P
      conf: audit: Audit physical memory size rather than balloon request · 1a136774
      Peter Krempa 提交于
      Since the balloon driver does not guarantee that it returns memory to
      the host, using the value in the audit message is not a good idea.
      
      This patch removes auditing from updating the balloon size and reports
      the total physical size at startup.
      1a136774
    • J
      qemu: Avoid using ".(null)" in UNIX socket path · ffbafd4e
      Jiri Denemark 提交于
      The code which generates paths for UNIX socket blindly used target name
      without checking if it was set. Thus for the following device XML
      
          <channel type='unix'>
            <source mode='bind'/>
            <target type='virtio'/>
          </channel>
      
      we would generate "/var/lib/libvirt/qemu/channel/target/NAME.(null)"
      path which works but is not really correct. Let's not use the
      ".target_name" suffix at all if target name is not set.
      
      https://bugzilla.redhat.com/show_bug.cgi?id=1226854Signed-off-by: NJiri Denemark <jdenemar@redhat.com>
      ffbafd4e
    • P
      qemu: agent: Don't automatically disable CPU0 via guest agent · 18c9d157
      Peter Krempa 提交于
      While CPU0 was made unpluggable in Linux a while ago it's not desirable
      to unplug it since some parts of the kernel (suspend-to-ram) still
      depend on it.
      
      This patch fixes the vCPU selection code in libvirt so that it will not
      be disabled.
      18c9d157
    • L
      91c9e4d9
    • J
      qemu: properly free addresses on non-serial chardev unplug · 224456fc
      Ján Tomko 提交于
      The target type comparison in qemuDomainDetachChrDevice
      used the VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE enum, so virtio-serial
      addresses were not freed properly for channel devices.
      
      Call qemuDomainReleaseDeviceAddress uncoditionally and decide
      based on the address type instead of the target/device types.
      224456fc
    • L
      qemu: fix address allocation on chardev attach · f967e7a6
      Luyao Huang 提交于
      Also check the device type when deciding what type the address should
      be. Commit 9807c471 (aiming to fix another error in address allocation)
      only checked the target type, but its value is different for different
      device types. This resulted in an error when trying to attach
      a channel with target type 'virtio':
      
      error: Failed to attach device from channel-file.xml
      error: internal error: virtio serial device has invalid address type
      
      Make the logic for releasing the address dependent only on
      * the address type
      * whether it was allocated earlier
      to avoid copying the device and target type checks.
      
      https://bugzilla.redhat.com/show_bug.cgi?id=1230039Signed-off-by: NLuyao Huang <lhuang@redhat.com>
      Signed-off-by: NJán Tomko <jtomko@redhat.com>
      f967e7a6
    • J
      libxl: Set def->vcpus after successfully modifying live vcpu count · 04597f8f
      Jim Fehlig 提交于
      def->vcpus was never updated after successfully changing the live
      vcpu count of a domain. Subsequent queries for vcpu info would
      return incorrect results.  E.g.:
      
      virsh vcpucount test
      maximum      config         4
      maximum      live           4
      current      config         4
      current      live           4
      
      virsh setvcpus test 2
      
      virsh vcpucount test
      maximum      config         4
      maximum      live           4
      current      config         4
      current      live           4
      
      After patch, live current config is reported correctly:
      
      virsh vcpucount test
      maximum      config         4
      maximum      live           4
      current      config         4
      current      live           2
      
      While fixing this, noticed that the live config was not saved
      to cfg->stateDir via virDomainSaveStatus. Save the live config
      and change error handling of virDomainSave{Config,Status} to
      log a message via VIR_WARN, instead of failing the entire
      DomainSetVcpusFlags operation.
      Signed-off-by: NJim Fehlig <jfehlig@suse.com>
      04597f8f
    • J
      libxl: honor domainGetXMLDesc() --inactive flag · 33be48d7
      Jim Fehlig 提交于
      The libxl driver always uses virDomainObj->def when formatting
      the domain XML description.  Use virDomainObj->newDef when
      --inactive flag is set.
      Signed-off-by: NJim Fehlig <jfehlig@suse.com>
      33be48d7
    • J
      libxl: don't remove persistent domain on start failure · 4b53d0d4
      Jim Fehlig 提交于
      libxlDomainCreateXML() would remove a persistent domain if
      libxlDomainStart() failed.  Check if domain is persistent
      before removing.
      Signed-off-by: NJim Fehlig <jfehlig@suse.com>
      4b53d0d4
    • J
      libxl: don't overwrite domain state from statedir config · 29b154e2
      Jim Fehlig 提交于
      When restarting libvirtd and reconnecting to running domains,
      libxlReconnectDomain() would unconditionally set the domain state
      to VIR_DOMAIN_RUNNING, overwriting the state maintained in
      $statedir/<domname>.xml.  A domain in a paused state would have
      the state changed to running, even though it was actually in a
      paused state.
      Signed-off-by: NJim Fehlig <jfehlig@suse.com>
      29b154e2
  3. 30 6月, 2015 5 次提交
    • J
      qemu: Add missing on_crash lifecycle type · 0b328383
      John Ferlan 提交于
      https://bugzilla.redhat.com/show_bug.cgi?id=1201760
      
      When the domain "<on_crash>coredump-destroy</on_crash>" is set, the
      domain wasn't being destroyed, rather it was being rebooted.
      
      Add VIR_DOMAIN_LIFECYCLE_CRASH_COREDUMP_DESTROY to the list of
      on_crash types that cause "-no-reboot" to be added to the qemu
      command line.
      0b328383
    • J
      Use the correct symbol for 'onCrash' · 5cd98522
      John Ferlan 提交于
      Although defined the same way, fortunately there hadn't been any deviation.
      Ensure any assignments to onCrash use VIR_DOMAIN_LIFECYCLE_CRASH_* defs and
      not VIR_DOMAIN_LIFECYCLE_* defs
      5cd98522
    • J
      mpath: Don't allow more than one mpath pool at a time · a77056bd
      John Ferlan 提交于
      https://bugzilla.redhat.com/show_bug.cgi?id=1232606
      
      Since an mpath pool contains all the Multipath devices on a host, allowing
      more than one defined on a host at a time should be disallowed under the
      policy of disallowing duplicate source pools for the host.
      
      Adjust to docs to clarify the Multipath target path value usage for both
      the storage driver (only 1 pool per host) and formatstorage references
      (ignore the target element in favor of the default target mapping of
      /dev/mapper).
      a77056bd
    • J
      mpath: Update path in CheckPool function · dbad0018
      John Ferlan 提交于
      https://bugzilla.redhat.com/show_bug.cgi?id=1230664
      
      Per the devmapper docs, use "/dev/mapper" or "/dev/dm-n" in order to
      determine if a device is under control of DM Multipath.
      
      So add "/dev/mapper" to the virFileExists, leaving the "/dev/mpath"
      as a "legacy" option since it appears for a while it was the preferred
      mechanism, but is no longer maintained
      dbad0018
    • J
      conf: Validate disk lun using correct types · c79ebf53
      John Ferlan 提交于
      https://bugzilla.redhat.com/show_bug.cgi?id=1201143
      
      The formatdomain.html description for <disk> device 'lun' indicates that
      it must be either a type 'block' or type 'network' with protocol 'iscsi';
      however, we did not make that check until domain startup.
      
      This caused issues for virt-manager which had an unexpected failure at
      run time rather config time.
      
      This patch adds a check in post part disk device checking for the specific
      and supported lun types as well as adjusting the test failure to be for
      parse config rather than run time.
      c79ebf53