On Fri, Aug 6, 2021 at 1:16 PM <[email protected]> wrote:
>
> I think these are the corresponding logs
> qcow2: Marking image as corrupt: Cluster allocation offset 0x7890c000 
> unaligned (L2 offset: 0x39e00000, L2 index: 0); further corruption events 
> will be suppressed

This disk was corrupted by a previous run of the vm.

> main_channel_link: add main channel client
> main_channel_client_handle_pong: net test: latency 12.959000 ms, bitrate 
> 3117199391 bps (2972.792998 Mbps)
> inputs_connect: inputs channel client create
> red_qxl_set_cursor_peer:
> red_channel_client_disconnect: rcc=0x56405bdf69c0 (channel=0x56405ad7c940 
> type=3 id=0)
> red_channel_client_disconnect: rcc=0x56405e78cdd0 (channel=0x56405bb96900 
> type=4 id=0)
> red_channel_client_disconnect: rcc=0x56405e79c5b0 (channel=0x56405ad7c220 
> type=2 id=0)
> red_channel_client_disconnect: rcc=0x56405bdea9f0 (channel=0x56405ad7c150 
> type=1 id=0)
> main_channel_client_on_disconnect: rcc=0x56405bdea9f0
> red_client_destroy: destroy client 0x56405c383110 with #channels=4
> red_qxl_disconnect_cursor_peer:
> red_qxl_disconnect_display_peer:
> 2021-08-03T08:10:50.516974Z qemu-kvm: terminating on signal 15 from pid 6847 
> (<unknown process>)
> 2021-08-03 08:10:50.717+0000: shutting down, reason=destroyed

Did you replace the corrupted disk before starting the vm again 3 hours later?

> 2021-08-03 11:02:57.502+0000: starting up libvirt version: 4.5.0, package: 
> 33.el7_8.1 (CentOS BuildSystem <http://bugs.centos.org>, 2020-05-12-16:25:35, 
> x86-01.bsys.centos.org), qemu version: 2.12.0qemu-kvm-ev-2.12.0-44.1.el7_8.1, 
> kernel: 3.10.0-1127.8.2.el7.x86_64, hostname: ovirt3-5.vmmgmt-int.uoc.gr
> LC_ALL=C \
> PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin \
> QEMU_AUDIO_DRV=none \
> /usr/libexec/qemu-kvm \
> -name guest=anova.admin.uoc.gr,debug-threads=on \
> -S \
> -object 
> secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-12-anova.admin.uoc.gr/master-key.aes
>  \
> -machine pc-i440fx-rhel7.6.0,accel=kvm,usb=off,dump-guest-core=off \
> -cpu 
> Westmere,vme=on,pclmuldq=on,x2apic=on,hypervisor=on,arat=on,hv_time,hv_relaxed,hv_vapic,hv_spinlocks=0x1fff,hv_synic,hv_stimer
>  \
> -m size=8388608k,slots=16,maxmem=33554432k \
> -realtime mlock=off \
> -smp 2,maxcpus=16,sockets=16,cores=1,threads=1 \
> -object iothread,id=iothread1 \
> -numa node,nodeid=0,cpus=0-1,mem=8192 \
> -uuid 1c1d20ed-3167-4be7-bff3-29845142fc57 \
> -smbios 'type=1,manufacturer=oVirt,product=oVirt 
> Node,version=7-8.2003.0.el7.centos,serial=4c4c4544-0053-4b10-8059-cac04f475832,uuid=1c1d20ed-3167-4be7-bff3-29845142fc57'
>  \
> -no-user-config \
> -nodefaults \
> -chardev socket,id=charmonitor,fd=33,server,nowait \
> -mon chardev=charmonitor,id=monitor,mode=control \
> -rtc base=2021-08-03T12:02:56,driftfix=slew \
> -global kvm-pit.lost_tick_policy=delay \
> -no-hpet \
> -no-shutdown \
> -global PIIX4_PM.disable_s3=1 \
> -global PIIX4_PM.disable_s4=1 \
> -boot strict=on \
> -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
> -device 
> virtio-scsi-pci,iothread=iothread1,id=ua-90ae154d-56b8-499a-9173-c4cd225ba0c6,bus=pci.0,addr=0x7
>  \
> -device 
> virtio-serial-pci,id=ua-a8dc285c-6fa9-45b2-a4f9-c8862be71342,max_ports=16,bus=pci.0,addr=0x4
>  \
> -drive 
> file=/rhev/data-center/mnt/10.252.80.208:_home_isos/5b1a0f29-8f97-42c3-bea2-39f83bbfbf24/images/11111111-1111-1111-1111-111111111111/virtio-win-0.1.185.iso,format=raw,if=none,id=drive-ua-cfb42882-2eba-41b9-9999-43781eeff382,werror=report,rerror=report,readonly=on
>  \
> -device 
> ide-cd,bus=ide.1,unit=0,drive=drive-ua-cfb42882-2eba-41b9-9999-43781eeff382,id=ua-cfb42882-2eba-41b9-9999-43781eeff382,bootindex=2
>  \
> -drive 
> file=/rhev/data-center/mnt/blockSD/a5a492a7-f770-4472-baa3-ac7297a581a9/images/2e6e3cd3-f0cb-47a7-8bda-7738bd7c1fb5/84c005da-cbec-4ace-8619-5a8e2ae5ea75,format=raw,if=none,id=drive-ua-2e6e3cd3-f0cb-47a7-8bda-7738bd7c1fb5,serial=2e6e3cd3-f0cb-47a7-8bda-7738bd7c1fb5,werror=stop,rerror=stop,cache=none,aio=native,throttling.bps-read=157286400,throttling.bps-write=73400320,throttling.iops-read=1200,throttling.iops-write=180
>  \

This log does not show anything except the corruption in the previous run.

What we need is libvirtd.log from /var/log/libvirt/libvirtd.log.

The log usually does not exist since it is too verbose to enable by default.
You can try to enable libvirt logs temporarily, see:
https://libvirt.org/kbase/debuglogs.html

Nir
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