Your message dated Sun, 10 May 2020 16:27:22 +0300
with message-id <[email protected]>
and subject line Re: ganeti: random freeze on some kvm guests in a jessie
ganeti cluster
has caused the Debian Bug report #875435,
regarding qemu-system-x86: guest lockup under light disk I/O when using
aio=threads
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
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--
875435: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=875435
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: ganeti
Version: 2.15.2-1~bpo8+1
Severity: normal
Dear Ganeti maintainers,
I get random freeze on kvm guests in a Jessie Ganeti cluster.
Last time it happened 2 times on the same guest at one week of interval.
Each time the guest only give ping response but nothing more and it get
back to work only after a `gnt-instance reboot`.
I did not find trace or error in log files in the guest or in the hosts.
I use ganeti and drbd packages from jessie-backports and kvm and kernel
packages from jessie archive.
The guest is a Debian Wheezy system but it got trouble on Debian Jessie
guest too.
One month ago I already post a bug report against the linux package
about disk lock on some Jessie guests in the same cluster:
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=870471
In that cases I got something on the guests kernel logs so maybe it's a
different issue, maybe not…
Any idea of how I can troubleshoot this issue?
Is there any log file to see the output of qemu-kvm for each instances?
Should I use a kernel and qemu-kvm package from jessie-backports too?
Regards,
Thomas Pierson
-- Package-specific info:
Version symlinks:
/etc/ganeti/share -> /usr/share/ganeti/2.15
/etc/ganeti/lib -> /usr/lib/ganeti/2.15
Cluster config version: 2.15.2
Address family: IPv4
Enabled hypervisors: kvm
kvm hypervisor parameters:
acpi=True
boot_order=disk
cpu_cores=0
cpu_mask=all
cpu_sockets=0
cpu_threads=0
disk_aio=threads
disk_cache=default
disk_type=paravirtual
kernel_args=ro
kvm_path=/usr/bin/kvm
migration_bandwidth=32
migration_downtime=30
migration_mode=live
migration_port=8102
nic_type=paravirtual
reboot_behavior=reboot
root_path=/dev/vda1
security_model=none
serial_console=True
serial_speed=38400
spice_ip_version=0
spice_playback_compression=True
spice_tls_ciphers=HIGH:-DES:-3DES:-EXPORT:-DH
spice_use_tls=False
spice_use_vdagent=True
use_chroot=False
use_localtime=False
user_shutdown=False
vhost_net=False
virtio_net_queues=1
vnc_tls=False
vnc_x509_verify=False
vnet_hdr=True
-- System Information:
Debian Release: 8.8
APT prefers oldstable-updates
APT policy: (500, 'oldstable-updates'), (500, 'oldstable')
Architecture: amd64 (x86_64)
Kernel: Linux 3.16.0-4-amd64 (SMP w/56 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages ganeti depends on:
ii adduser 3.113+nmu3
ii ganeti-2.15 2.15.2-1~bpo8+1
ii ganeti-haskell-2.15 2.15.2-1~bpo8+1
ii ganeti-htools-2.15 2.15.2-1~bpo8+1
ii python 2.7.9-1
Versions of packages ganeti recommends:
ii drbd-utils 8.9.5-1~bpo8+1
ii drbd8-utils 2:8.9.5-1~bpo8+1
ii ganeti-instance-debootstrap 0.16-1~bpo8+1
ii ndisc6 1.0.1-1+deb8u1
ii qemu-kvm 1:2.1+dfsg-12+deb8u6
Versions of packages ganeti suggests:
pn blktap-dkms <none>
pn ganeti-doc <none>
ii molly-guard 0.4.5-1.1
-- no debconf information
--- End Message ---
--- Begin Message ---
Version: 1:5.0-1
This is an old bugreport filed against old version of qemu and/or kernel,
hopefully the issue in question has been fixed long ago, so closing this
bugreport now. If the issue is still relevant today with current version
of qemu and kernel, please reopen this bugreport.
Thanks,
/mjt
--- End Message ---
