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Bug 2179033

Summary: bugs in emulation of BMI instructions (for libguestfs without KVM) [rhel-9.3.0]
Product: Red Hat Enterprise Linux 9 Reporter: RHEL Program Management Team <pgm-rhel-tools>
Component: qemu-kvmAssignee: Paolo Bonzini <pbonzini>
qemu-kvm sub component: CPU Models QA Contact: liunana <nanliu>
Status: CLOSED ERRATA Docs Contact:
Severity: high    
Priority: high CC: chayang, jinzhao, juzhang, lersek, mrezanin, nilal, pbonzini, rjones, virt-maint, ymankad, yoguo, zhguo
Version: 9.2Keywords: Regression, Triaged
Target Milestone: rcFlags: pm-rhel: mirror+
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: qemu-kvm-8.0.0-1.el9 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: 2173590 Environment:
Last Closed: 2023-11-07 08:27:12 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2173590, 2180898    
Bug Blocks:    

Comment 3 liunana 2023-04-21 08:13:35 UTC 
Test PASS with qemu-kvm-8.0.0-1.el9.x86_64.
Test Env:
  Host:
    qemu-kvm-8.0.0-1.el9.x86_64
    5.14.0-300.el9.x86_64
  Guest: 5.14.0-300.el9.x86_64


Test results inside guest:
# ./a.out 
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15


@yoguo Would you please help to test the libguestfs regression test for this bug? Thanks.
Comment 4 liunana 2023-04-21 08:42:18 UTC 
Addtional info:

guest# virt-what 
redhat
qemu
Comment 5 YongkuiGuo 2023-04-21 09:16:03 UTC 
Tested with the following packages on RHEL9.3 host:

qemu-kvm-8.0.0-1.el9.x86_64
libguestfs-1.50.1-3.el9.x86_64
kernel-5.14.0-300.el9.x86_64


Steps:

1.
$ LIBGUESTFS_BACKEND=direct LIBGUESTFS_BACKEND_SETTINGS=force_tcg libguestfs-test-tool
...
/usr/libexec/qemu-kvm \
    -global virtio-blk-pci.scsi=off \
    -no-user-config \
    -nodefaults \
    -display none \
    -machine q35,accel=tcg,graphics=off \
    -cpu max,la57=off \
    -m 1280 \
    -no-reboot \
    -rtc driftfix=slew \
    -no-hpet \
    -global kvm-pit.lost_tick_policy=discard \
    -kernel /var/tmp/.guestfs-1002/appliance.d/kernel \
    -initrd /var/tmp/.guestfs-1002/appliance.d/initrd \
    -object rng-random,filename=/dev/urandom,id=rng0 \
    -device virtio-rng-pci,rng=rng0 \
    -device virtio-scsi-pci,id=scsi \
    -drive file=/tmp/libguestfsU9fh1Z/scratch1.img,cache=unsafe,format=raw,id=hd0,if=none \
    -device scsi-hd,drive=hd0 \
    -drive file=/var/tmp/.guestfs-1002/appliance.d/root,snapshot=on,id=appliance,cache=unsafe,if=none \
    -device scsi-hd,drive=appliance \
    -device virtio-serial-pci \
    -serial stdio \
    -chardev socket,path=/run/user/0/libguestfsFfbIfi/guestfsd.sock,id=channel0 \
    -device virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \
    -append "panic=1 console=ttyS0 edd=off udevtimeout=6000 udev.event-timeout=6000 no_timer_check printk.time=1 cgroup_disable=memory usbcore.nousb cryptomgr.notests tsc=reliable 8250.nr_uarts=1 root=UUID=94874061-5b04-4ef4-aeef-606990aeef3a selinux=0 guestfs_verbose=1 TERM=xterm-256color"
qemu-kvm: -no-hpet: warning: -no-hpet is deprecated, use '-machine hpet=off' instead
\x1bc\x1b[?7l\x1b[2J\x1b[0mSeaBIOS (version 1.16.1-1.el9)
Booting from ROM..\x1bc\x1b[?7l\x1b[2J[    0.000000] Linux version 5.14.0-300.el9.x86_64 (mockbuild.eng.bos.redhat.com) (gcc (GCC) 11.3.1 20221121 (Red Hat 11.3.1-4), GNU ld version 2.35.2-39.el9) #1 SMP PREEMPT_DYNAMIC Mon Apr 17 04:33:53 EDT 2023
[    0.000000] The list of certified hardware and cloud instances for Red Hat Enterprise Linux 9 can be viewed at the Red Hat Ecosystem Catalog, https://catalog.redhat.com.
[    0.000000] Command line: panic=1 console=ttyS0 edd=off udevtimeout=6000 udev.event-timeout=6000 no_timer_check printk.time=1 cgroup_disable=memory usbcore.nousb cryptomgr.notests tsc=reliable 8250.nr_uarts=1 root=UUID=94874061-5b04-4ef4-aeef-606990aeef3a selinux=0 guestfs_verbose=1 TERM=xterm-256color
...
===== TEST FINISHED OK =====

Sanity check passed on libguestfs side.
Comment 6 Yanan Fu 2023-04-24 10:34:24 UTC 
QE bot(pre verify): Set 'Verified:Tested,SanityOnly' as gating/tier1 test pass.
Comment 9 liunana 2023-04-27 05:07:42 UTC 
Move to verified according to Comment 3 and Comment 5.
Comment 12 errata-xmlrpc 2023-11-07 08:27:12 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Moderate: qemu-kvm security, bug fix, and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2023:6368