[Libguestfs] libguestfs kernel panic

Sat Sep 30 10:37:09 UTC 2023

Yes, it is unmodified OL 8.8, and I have not (manually) compiled, or recompiled anything (including supermin or libguestfs)

[root at ol-kvm-h01 tmp]# cat /etc/*rele*

Oracle Linux Server release 8.8

NAME="Oracle Linux Server"

VERSION="8.8"

ID="ol"

ID_LIKE="fedora"

VARIANT="Server"

VARIANT_ID="server"

VERSION_ID="8.8"

PLATFORM_ID="platform:el8"

PRETTY_NAME="Oracle Linux Server 8.8"

ANSI_COLOR="0;31"

CPE_NAME="cpe:/o:oracle:linux:8:8:server"

HOME_URL="https://linux.oracle.com/"

BUG_REPORT_URL="https://github.com/oracle/oracle-linux"

ORACLE_BUGZILLA_PRODUCT="Oracle Linux 8"

ORACLE_BUGZILLA_PRODUCT_VERSION=8.8

ORACLE_SUPPORT_PRODUCT="Oracle Linux"

ORACLE_SUPPORT_PRODUCT_VERSION=8.8

Red Hat Enterprise Linux release 8.8 (Ootpa)

Oracle Linux Server release 8.8

cpe:/o:oracle:linux:8:8:server

[root at ol-kvm-h01 tmp]# uname -a

Linux ol-kvm-h01 5.15.0-105.125.6.2.2.el8uek.x86_64 #2 SMP Tue Sep 19 21:02:08 PDT 2023 x86_64 x86_64 x86_64 GNU/Linux

FYI: The KVM Host was installed/configured using the below process (I mention this since I needed to perform some additional repo/module configuration in order to get libvirt-7 installed):

  # Install the Oracle Linux Virtualization Manager Release 4.4 package
  yum install oracle-ovirt-release-el8 -y
     Required oVirt 4.4 Yum Channels enabled.
     Installed:             oracle-ovirt-release-el8.x86_64   1.0-1.0.3.el8
     Dependency Installed:  oracle-gluster-release-el8.x86_64 1.0-2.el8

  yum clean all; yum repolist

repo id
ol8_UEKR6
ol8_UEKR7
ol8_addons
ol8_appstream
ol8_baseos_latest
ol8_gluster_appstream
ol8_kvm_appstream
ovirt-4.4
ovirt-4.4-extra

  # Remove any unwanted repos
  dnf config-manager --disable "ol8_UEKR6"

  # Ensure libvirt-7 package is available
  #   Disable virt:ol and enable virt:kvm_utils2 (this will make the libvirt-7 package available)
  #   Ref: https://docs.oracle.com/en/virtualization/oracle-linux-virtualization-manager/getstart/getstarted-manager-install.html#manager-prep-kvm
  if ! yum --showduplicates list libvirt | grep "libvirt.* 7"; then
    dnf -y module disable virt:ol
    dnf -y module enable  virt:kvm_utils2
    yum --showduplicates list libvirt
  fi

  # Make sure all packages are up-to-date
  dnf update -y
  reboot

  # Open the Cockpit port
  firewall-cmd --zone=public --add-port=9090/tcp

Regards,

Dennis

-----Original Message-----
From: Richard W.M. Jones <rjones at redhat.com>
Sent: Saturday, 30 September 2023 7:20 PM
To: Clark, Dennis <dclark66 at dxc.com>
Cc: libguestfs at redhat.com
Subject: Re: [Libguestfs] libguestfs kernel panic

On Thu, Sep 28, 2023 at 12:30:28PM +0000, Clark, Dennis wrote:

> [root at ol-kvm-h01 work]# LIBGUESTFS_BACKEND=direct libguestfs-test-tool

...

> libguestfs: launch: version=1.44.0rhel=8,release=

> 5.0.1.module+el8.7.0+21035+a8208c98,libvirt

>

> \x1b[2J[    0.000000] Linux version 5.15.0-105.125.6.2.2.el8uek.x86_64 (mockbuild at host-100-100-224-56) (gcc (GCC) 11.2.1 20220127 (Red Hat 11.2.1-9.1.0.6), GNU ld version 2.36.1-2.0.1.el8) #2 SMP Tue Sep 19 21:02:08 PDT 2023

^ Looks like OEL.

> [    0.843934] Run /init as init process

^ This messsage come from the kernel.

> [    0.845792] traps: init[1] general protection fault ip:43faa8

> sp:7ffe9b9904b0 error:0 in init[400000+a7000]

>

> [    0.849636] Kernel panic - not syncing: Attempted to kill init! exitcode=

> 0x0000000b

Then the supermin embedded init process appears to crash.  That's

somewhere probably very early on in this code:

  https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Flibguestfs%2Fsupermin%2Fblob%2Fmaster%2Finit%2Finit.c&data=05%7C01%7Cdclark66%40dxc.com%7Cb14f2c9313694dcc237d08dbc17d42ea%7C93f33571550f43cfb09fcd331338d086%7C0%7C0%7C638316515975840513%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=j55BHS3h4R%2BdR2xifxQ3iPoq%2BKdMsxKBFRV1ufOqXFM%3D&reserved=0<https://github.com/libguestfs/supermin/blob/master/init/init.c>

Before I look further at this, is this unmodified OEL 8.7.0?

And you didn't recompile supermin or libguestfs?

Rich.

--

Richard Jones, Virtualization Group, Red Hat https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fpeople.redhat.com%2F~rjones&data=05%7C01%7Cdclark66%40dxc.com%7Cb14f2c9313694dcc237d08dbc17d42ea%7C93f33571550f43cfb09fcd331338d086%7C0%7C0%7C638316515975840513%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=XSOVmF7WWu9AA0OGf0KHJuQ0i8WBQFeWlcM6BA1jkww%3D&reserved=0<http://people.redhat.com/~rjones>

Read my programming and virtualization blog: https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Frwmj.wordpress.com%2F&data=05%7C01%7Cdclark66%40dxc.com%7Cb14f2c9313694dcc237d08dbc17d42ea%7C93f33571550f43cfb09fcd331338d086%7C0%7C0%7C638316515975840513%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=3YGXsmiB3TmxJ6ufuCpTiuCG%2BX2ZO5zgMUIDRM5wg9A%3D&reserved=0<http://rwmj.wordpress.com/>

virt-p2v converts physical machines to virtual machines.  Boot with a

live CD or over the network (PXE) and turn machines into KVM guests.

https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Flibguestfs.org%2Fvirt-v2v&data=05%7C01%7Cdclark66%40dxc.com%7Cb14f2c9313694dcc237d08dbc17d42ea%7C93f33571550f43cfb09fcd331338d086%7C0%7C0%7C638316515975840513%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=UqKAdm1vFj6RAV3eDSCdH1itdAGCT2kKWVOmwhCur4E%3D&reserved=0<http://libguestfs.org/virt-v2v>

DXC Technology NZ Limited (Company number 1441241).
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