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[Bug 2069243] Re: [Potential Regression] ubuntu_kvm_smoke_test failed with X-4.4.0-255.289 on Oracle instances

To: group.of.nepali.translators@xxxxxxxxxxxxxxxxxxx
From: Po-Hsu Lin <2069243@xxxxxxxxxxxxxxxxxx>
Date: Fri, 14 Jun 2024 01:13:48 -0000
Reply-to: Bug 2069243 <2069243@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx
** Also affects: linux (Ubuntu)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/2069243

Title:
  [Potential Regression] ubuntu_kvm_smoke_test failed with
  X-4.4.0-255.289 on Oracle instances

Status in ubuntu-kernel-tests:
  New
Status in linux package in Ubuntu:
  Invalid
Status in linux source package in Xenial:
  New

Bug description:
  Issue found on Oracle instance VM.DenseIO2.8, VM.Standard2.1 with
  4.4.0-255.289

  KVM failed to start, test failed with:
    uvt-kvm: error: timed out waiting for dnsmasq lease for 52:54:00:9e:29:7e.

  Test log:
   Running 'sudo -u ubuntu /home/ubuntu/autotest/client/tests/ubuntu_kvm_smoke_test/the-test amd64'
   + SUT=bjf-test
   + SSH_KEY=/home/ubuntu/.ssh/id_rsa
   + SSH_OPTIONS='-o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o LogLevel=quiet -i /home/ubuntu/.ssh/id_rsa'
   ++ lsb_release -c
   ++ awk '{print$2}'
   + DISTRO=xenial
   + ARCHITECTURE=amd64
   + trap cleanup EXIT
   + '[' -z amd64 ']'
   + kvm-ok
   INFO: /dev/kvm exists
   KVM acceleration can be used
   + '[' 0 '!=' 0 ']'
   + set -e
   + '[' '!' -f /home/ubuntu/.ssh/id_rsa ']'
   + ssh-keygen -f /home/ubuntu/.ssh/id_rsa -t rsa -N ''
   Generating public/private rsa key pair.
   Your identification has been saved in /home/ubuntu/.ssh/id_rsa.
   Your public key has been saved in /home/ubuntu/.ssh/id_rsa.pub.
   The key fingerprint is:
   SHA256:sDO+6ZjLP+nlVSse7DVFfjs171zBcpTNuU/7o9nwiCs ubuntu@x-l-gen-s2-vmdio28-u-kvm-smk-test
   The key's randomart image is:
   +---[RSA 2048]----+
   |                 |
   |               .+|
   |      .       .+o|
   |       o     oo .|
   |      + S   ..o*+|
   |     . o . . oooO|
   |      ... = +. ++|
   |   . oo= E +..*++|
   |    ==*.. +o.+.o=|
   +----[SHA256]-----+
   + '[' amd64 = ppc64el ']'
   ++ uvt-simplestreams-libvirt query
   ++ grep -P 'xenial.*amd64'
   ++ true
   + image=
   + '[' -z '' ']'
   + uvt-simplestreams-libvirt sync --source http://cloud-images.ubuntu.com/daily release=xenial arch=amd64
   + uvt-kvm create bjf-test release=xenial arch=amd64
   + uvt-kvm wait bjf-test --insecure --ssh-private-key-file /home/ubuntu/.ssh/id_rsa
   uvt-kvm: error: timed out waiting for dnsmasq lease for 52:54:00:9e:29:7e.
   + cleanup
   + uvt-kvm destroy bjf-test
   + '[' amd64 = ppc64el ']'

  Console output:
  [  829.922430] BUG: unable to handle kernel paging request at 00000000000049d8
  [  829.929523] IP: [<ffffffffc04ce54f>] vmx_vcpu_run+0xff/0x5d0 [kvm_intel]
  [  829.931108] PGD 0 
  [  829.931616] Oops: 0000 [#1] SMP 
  [  829.932442] Modules linked in: vhost_net vhost macvtap macvlan xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat bridge stp llc ebtable_filter ebtables kvm_intel ip6table_filter ip6_tables xt_comment ipt_REJECT nf_reject_ipv4 xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_owner xt_conntrack nf_conntrack iptable_filter ip_tables x_tables edac_core kvm irqbypass joydev input_leds shpchp i2c_piix4 serio_raw pvpanic 8250_fintek mac_hid ib_iser rdma_cm iw_cm ib_cm sunrpc ib_sa ib_mad ib_core ib_addr autofs4 btrfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi iscsi_ibft iscsi_boot_sysfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid hid crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd psmouse virtio_scsi nvme pata_acpi floppy [last unloaded: kvm_intel]
  [  829.954484] CPU: 9 PID: 6108 Comm: qemu-system-x86 Not tainted 4.4.0-255-generic #289-Ubuntu
  [  829.956393] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.6.6 08/22/2023
  [  829.958270] task: ffff881db8e8d600 ti: ffff881db8174000 task.ti: ffff881db8174000
  [  829.960011] RIP: 0010:[<ffffffffc04ce54f>]  [<ffffffffc04ce54f>] vmx_vcpu_run+0xff/0x5d0 [kvm_intel]
  [  829.962153] RSP: 0018:ffff881db8177ce8  EFLAGS: 00010046
  [  829.963397] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
  [  829.965051] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
  [  829.966690] RBP: ffff881db8177d40 R08: 0000000000000000 R09: 0000000000000000
  [  829.968338] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
  [  829.970020] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
  [  829.971655] FS:  00007f680a6f9700(0000) GS:ffff881dc7440000(0000) knlGS:0000000000000000
  [  829.973517] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [  829.974825] CR2: 00000000000049d8 CR3: 0000001dba3ba000 CR4: 0000000000362670
  [  829.976482] Stack:
  [  829.976959]  0000000000000000 ffff881db8288000 0000000000000000 ffff881db8288000
  [  829.978801]  00000000b8177d28 cd7740a309bdf11f ffff881db8288000 0000000000000000
  [  829.980616]  0000000000000000 000000c0dcf13e97 00000000001e7230 ffff881db8177db8
  [  829.982445] Call Trace:
  [  829.983128]  [<ffffffffc0420442>] vcpu_enter_guest+0x782/0x11e0 [kvm]
  [  829.984622]  [<ffffffff810934d1>] ? __set_task_blocked+0x41/0xa0
  [  829.986038]  [<ffffffffc0427186>] kvm_arch_vcpu_ioctl_run+0xe6/0x410 [kvm]
  [  829.987626]  [<ffffffffc040c10d>] kvm_vcpu_ioctl+0x33d/0x620 [kvm]
  [  829.989028]  [<ffffffff8110b5b8>] ? do_futex+0x108/0x480
  [  829.990288]  [<ffffffff8123109f>] do_vfs_ioctl+0x2af/0x4b0
  [  829.991567]  [<ffffffff81231319>] SyS_ioctl+0x79/0x90
  [  829.992738]  [<ffffffff8186d105>] ? clear_bhb_loop+0x15/0x70
  [  829.994052]  [<ffffffff8186a108>] entry_SYSCALL_64_fastpath+0x22/0xc3
  [  829.995531] Code: 48 8b b9 c8 44 00 00 e8 80 e2 ff ff 48 8b 4d b0 0f 1f 44 00 00 e9 33 03 00 00 0f 1f 44 00 00 e9 01 01 00 00 31 db e8 a1 eb 39 c1 <80> b9 d8 49 00 00 00 0f 85 f9 03 00 00 48 8b 7d c0 48 89 4d b0 
  [  830.001696] RIP  [<ffffffffc04ce54f>] vmx_vcpu_run+0xff/0x5d0 [kvm_intel]
  [  830.003298]  RSP <ffff881db8177ce8>
  [  830.004131] CR2: 00000000000049d8
  [  830.006429] ---[ end trace a1cf19df2cdd1499 ]---

  A manual test shows with 4.4.0-254-generic works fine with
  VM.DenseIO2.8

  Therefore this seems to be a regression to me.

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