[libvirt-users] Urgent: virsh - change-media run into a promptly close of libvirt

[Holger Schranz]

Hi Daniel,

here are any informations.

A little bit strange, coredumpctl showthe libvirtd.
coredumpctl dump libvirt and info libvirt  no information.

Best regards

Holger

--------------------------------------------------------------------------

etcsvms5:/var/adm # coredumpctl
TIME                            PID   UID   GID SIG PRESENT EXE
Tue 2017-11-07 16:22:57 CET     485     0     0  11 /usr/sbin/plymouthd
Wed 2017-11-08 14:44:12 CET     485     0     0  11 /usr/sbin/plymouthd
Tue 2017-11-14 10:11:37 CET   10177     0     0  11 * 
/usr/local/sbin/libvirtd
etcsvms5:/var/adm # coredumpctl --help

etcsvms5:/var/adm # coredumpctl dump libvirt
No match found.
etcsvms5:/var/adm # coredumpctl info libvirt
No coredumps found.
etcsvms5:/var/adm #

etcsvms5:/var/adm # coredumpctl info
.
.
            PID: 10177 (libvirtd)
            UID: 0 (root)
            GID: 0 (root)
         Signal: 11 (SEGV)
      Timestamp: Tue 2017-11-14 10:11:32 CET (8h ago)
   Command Line: /usr/local/sbin/libvirtd -d
     Executable: /usr/local/sbin/libvirtd
  Control Group: /
          Slice: -.slice
        Boot ID: 4d5f74eefb0244c2bc3b2c99986dcee8
     Machine ID: beeb301fe87a14b2eabdb6a75a01cbae
       Hostname: etcsvms5
       Coredump: 
/var/lib/systemd/coredump/core.libvirtd.0.4d5f74eefb0244c2bc3b2c99986dcee8.10177.1510650692000000.xz
        Message: Process 10177 (libvirtd) of user 0 dumped core.
etcsvms5:/var/adm #

Am 14.11.2017 um 18:51 schrieb Daniel P. Berrange:
> On Tue, Nov 14, 2017 at 06:47:04PM +0100, Holger Schranz wrote:
>> Hello,
>>
>> I use the virsh change-media command and since the combination of:
>>
>> etcsvms5:/kvm/CS8400/M1 # virsh version
>> Compiled against library: libvirt 3.9.0
>> Using library: libvirt 3.9.0
>> Using API: QEMU 3.9.0
>> Running hypervisor: QEMU 2.10.1
>>
>> etcsvms5:/kvm/CS8400/M1 #
>>
>> I got the following problem:
>>
>> ----------------------
>>
>> etcsvms5:/kvm/CS8400/M1 # virsh change-media S5VCS84M1-VLP0 hdc --eject
>> Successfully ejected media.
>>
>> etcsvms5:/kvm/CS8400/M1 # virsh change-media S5VCS84M1-VLP0 hdc
>> /home/kvm/etcsdvmb/Medien/V7.0A/CS_licenses/key-cd_VCS85FTSVTL.iso --insert
>> error: Disconnected from qemu:///system due to end of file
>> error: Failed to complete action insert on media
>> error: End of file while reading data: Input/output error
>>
>> ----------------------
>>
>> journalctl -b | less shows the following:
>>
>> Nov 14 10:11:32 etcsvms5 kernel: libvirtd[10178]: segfault at 10 ip
>> 00007f49ff969170 sp 00007f4a069cb940 error 4 in
>> libvirt_driver_qemu.so[7f49ff8d9000+172000]
>> Nov 14 10:11:37 etcsvms5 systemd-coredump[42152]: Process 10177 (libvirtd)
>> of user 0 dumped core.
> Seeing the stack trace of libvirtd will be key to identifying the bug. With
> any luck systemd-coredump will have captured that. So can you run 'coredumpctl'
> to get the stack trace it saved.
>
> Then I'd suggest filing a bugzilla ticket against libvirt with the resulting
> info so we have a record of it.
>
> Regards,
> Daniel


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