1. 02 7月, 2015 10 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      local variable) which is no longer valid once function is finished and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 14 次提交
  4. 29 6月, 2015 1 次提交
  5. 28 6月, 2015 1 次提交