Uploaded image for project: 'RHEL'
  1. RHEL
  2. RHEL-753

libvirt watchdog action=dump should not resume the vm after coredump the guest

    • libvirt-10.9.0-1.el10
    • None
    • Low
    • rhel-sst-virtualization
    • ssg_virtualization
    • 14
    • 1
    • QE ack, Dev ack
    • False
    • Hide

      None

      Show
      None
    • None
    • None
    • If docs needed, set a value
    • Unspecified
    • 10.9.0
    • None

      Description of problem:
      For libvirt watchdog action=dump, when it is triggered, the guest will pause and libvirt coredumps the guest, which is fine.  However libvirt then resumes the guest which is definitely not fine (it should restart it).

      Version-Release number of selected component (if applicable):
      libvirt-9.0.0-3.el9.x86_64

      How reproducible:
      100%

      Steps to Reproduce:
      1. Start vm with watchdog device:

      1. virsh dumpxml rhel --xpath //watchdog
        <watchdog model="i6300esb" action="dump">
          <address type="pci" domain="0x0000" bus="0x10" slot="0x01" function="0x0"/>
        </watchdog>
      1. virsh start rhel
        Domain 'rhel' started

      2. Trigger the watchdog in the vm and wait for 30s, vm will pause and generate the dump file, then libvirt will resume the vm:

      1.  echo 1 > /dev/watchdog
        [   71.910336] watchdog: watchdog0: watchdog did not stop!
        (check the status on vm, after 30s, it will pause for several seconds, then resume. No reset.)

      Watch the domstate on the host, after 30s, the vm will be pause, and then resume to running status:

      1. watch virsh domstate rhel

      Check there is coredump file created on the host:

      1. ll /var/lib/libvirt/qemu/dump
        total 2088772
        rw------. 1 root root 2138900771 Feb  7 21:06 3-rhel-2023-02-07-21:06:48

      Actual results:
      For libvirt watchdog action=dump, when it is triggered, the guest will pause and libvirt coredumps the guest, which is fine.  However libvirt then resumes the guest which is definitely not fine (it should restart it).

      Expected results:
      After coredump, libvirt should reset the vm

      Additional info:

              mkletzan@redhat.com Martin Kletzander
              yalzhang@redhat.com Yalan Zhang
              virt-maint virt-maint
              Lili Zhu Lili Zhu
              Votes:
              0 Vote for this issue
              Watchers:
              12 Start watching this issue

                Created:
                Updated: