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Cisco Bug: CSCvt38881 - Staros VPC-DI - virsh serial0 console logs stops sending debug console output after reboot

Last Modified

Jul 17, 2020

Products (2)

  • Cisco ASR 5000 Series
  • Cisco ASR 5500

Known Affected Releases

21.17.6 21.18.0 21.18.2 21.19.0 21.19.n1

Description (partial)

Symptom:
A staros VPC-DI system is provisioned with various methods to retrieve logs or interact with the VM:
-serial0 console (accessible via virsh console [virsh id]), or via openstack instance logs in horizon)
-serial1 console (accessible via virsh console [virsh id] serial1 on systems that provisioned a second serial)
-kvm/vga console (accessible via openstack/vmware instance console)

The serial0 console should output the 'debug console' messages of the VM. This is happening after initial deployment of the VM. But a subsequent reboot of the VM causes this logging to stop. Only a small subset of the initial boot messages are shown:

<snip>
Invoking StarOS Image...
Loading linux... setup=0x70000..0x737ff..0x7fffb prot=0x00100000..0x004e2cdf
Loaded: 2.6.38-staros-v3-scale-64 (mitgblds@bxb-mitg6-rel11) #1 SMP PREEMPT Thu Dec 19 02:21:46 EST 2019
Starting program at 0x0000000000070200
 <output stops>

Conditions:
any kind of reboot (staros level or openstack/libvirt level)
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