grub> linux /boot/vmlinuz-6.16.0-rc1-next root=/dev/vda2 efi=debug earlycon=sbi
grub> initrd /boot/initrd.img-6.16.0-rc1-next
grub> debug=all
script/script.c:65:scripting: free 0x1c7cb5eb40
script/script.c:65:scripting: free 0x1c7cb5eb80
script/script.c:65:scripting: free 0x1c7cb5ebc0
script/script.c:65:scripting: free 0x1c7cb5e7e0
script/script.c:65:scripting: free 0x1c7cb5e840
script/script.c:65:scripting: free 0x1c7cb5e880
script/script.c:65:scripting: free 0x1c7cb5e8e0
script/script.c:65:scripting: free 0x1c7cb5e940
script/script.c:65:scripting: free 0x1c7cb5ea20
grub> boot
script/lexer.c:336:lexer: token 288 text [boot]
script/script.c:50:scripting: malloc 0x1c7cb5eaa0
script/script.c:50:scripting: malloc 0x1c7cb5ea60
script/script.c:163:scripting: arglist
script/script.c:50:scripting: malloc 0x1c7cb5ea00
script/lexer.c:336:lexer: token 259 text [
]
script/script.c:50:scripting: malloc 0x1c7cb5e9a0
script/script.c:50:scripting: malloc 0x1c7cb5e960
script/script.c:198:scripting: cmdline
script/script.c:50:scripting: malloc 0x1c7cb5e900
script/lexer.c:336:lexer: token 0 text []
script/script.c:50:scripting: malloc 0x1c7cb5ebc0
script/script.c:50:scripting: malloc 0x1c7cb5e8c0
script/script.c:294:scripting: append command
script/script.c:50:scripting: malloc 0x1c7cb5e880
kern/verifiers.c:214:verify: string: boot, type: 2
error: cannot load image.
script/script.c:65:scripting: free 0x1c7cb5e880
script/script.c:65:scripting: free 0x1c7cb5e8c0
script/script.c:65:scripting: free 0x1c7cb5ebc0
script/script.c:65:scripting: free 0x1c7cb5e900
script/script.c:65:scripting: free 0x1c7cb5e960
script/script.c:65:scripting: free 0x1c7cb5e9a0
script/script.c:65:scripting: free 0x1c7cb5ea00
script/script.c:65:scripting: free 0x1c7cb5ea60
script/script.c:65:scripting: free 0x1c7cb5eaa0
grub> linux /boot/vmlinuz root=/dev/vda2 efi=debug earlycon=sbi
script/lexer.c:336:lexer: token 288 text [linux]
script/script.c:50:scripting: malloc 0x1c7cb5ea60
script/script.c:50:scripting: malloc 0x1c7cb5ea20
script/script.c:163:scripting: arglist
script/script.c:50:scripting: malloc 0x1c7cb5e9c0
script/lexer.c:336:lexer: token 289 text [/boot/vmlinuz]
script/script.c:50:scripting: malloc 0x1c7cb5e7e0
script/script.c:50:scripting: malloc 0x1c7cb5e7a0
script/script.c:163:scripting: arglist
script/script.c:50:scripting: malloc 0x1c7cb5e740
script/lexer.c:336:lexer: token 289 text [root=/dev/vda2]
script/script.c:50:scripting: malloc 0x1c7cb5e400
script/script.c:50:scripting: malloc 0x1c7cb5e3c0
script/script.c:163:scripting: arglist
script/script.c:50:scripting: malloc 0x1c7cb5e360
script/lexer.c:336:lexer: token 289 text [efi=debug]
script/script.c:50:scripting: malloc 0x1c7cb5e300
script/script.c:50:scripting: malloc 0x1c7cb5e2c0
script/script.c:163:scripting: arglist
script/script.c:50:scripting: malloc 0x1c7cb5e260
script/lexer.c:336:lexer: token 289 text [earlycon=sbi]
script/script.c:50:scripting: malloc 0x1c7cb5e200
script/script.c:50:scripting: malloc 0x1c7cb5e1c0
script/script.c:163:scripting: arglist
script/script.c:50:scripting: malloc 0x1c7cb5e160
script/lexer.c:336:lexer: token 259 text [
]
script/script.c:50:scripting: malloc 0x1c7cb5e100
script/script.c:50:scripting: malloc 0x1c7cb5e0c0
script/script.c:198:scripting: cmdline
script/script.c:50:scripting: malloc 0x1c7cb5e060
script/lexer.c:336:lexer: token 0 text []
script/script.c:50:scripting: malloc 0x1c7cb5ebc0
script/script.c:50:scripting: malloc 0x1c7cb5eb80
script/script.c:294:scripting: append command
script/script.c:50:scripting: malloc 0x1c7cb5eb40
kern/verifiers.c:214:verify: string: linux /boot/vmlinuz root=/dev/vda2
efi=debug earlycon=sbi, type: 2
kern/disk.c:200:disk: Opening `hd0,gpt2'...
disk/efi/efidisk.c:482:efidisk: opening hd0
disk/efi/efidisk.c:511:efidisk: m = 0x1c7f2eca40, last block = c1fffff, block
size = 200, io align = 0
disk/efi/efidisk.c:529:efidisk: opening hd0 succeeded
disk/efi/efidisk.c:603:efidisk: reading 0x40 sectors at the sector 0x0 from hd0
partmap/gpt.c:93:gpt: Read a valid GPT header
partmap/gpt.c:115:gpt: GPT entry 0: start=2048, length=2201600
partmap/gpt.c:115:gpt: GPT entry 1: start=2203648, length=169760768
kern/fs.c:56:fs: Detecting ext2...
disk/efi/efidisk.c:603:efidisk: reading 0x40 sectors at the sector 0x21a000
from hd0
disk/efi/efidisk.c:603:efidisk: reading 0x40 sectors at the sector 0x21c100
from hd0
disk/efi/efidisk.c:603:efidisk: reading 0x40 sectors at the sector 0x22c080
from hd0
disk/efi/efidisk.c:603:efidisk: reading 0x40 sectors at the sector 0x121a100
from hd0
disk/efi/efidisk.c:603:efidisk: reading 0x40 sectors at the sector 0x122a080
from hd0
disk/efi/efidisk.c:603:efidisk: reading 0x40 sectors at the sector 0x121a900
from hd0
disk/efi/efidisk.c:603:efidisk: reading 0x40 sectors at the sector 0x3cd6000
from hd0
kern/verifiers.c:88:verify: file: /boot/vmlinuz type: 3
loader/efi/linux.c:101:linux: UEFI stub kernel:
loader/efi/linux.c:102:linux: PE/COFF header @ 00000040
loader/efi/linux.c:131:linux: LoadFile2 initrd loading enabled
grub_efi_drop_alloc() called with wrong page count
Aborted. Press any key to exit.

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https://bugs.launchpad.net/bugs/2112578

Title:
  riscv64: KVM does not release harts

Status in linux package in Ubuntu:
  New
Status in qemu package in Ubuntu:
  New

Bug description:
  In the 6.14.0-13-generic kernel there seems to be a problem with KVM.

  On my amd64 machine I am running a riscv64 machine using QEMU 10 with
  16 cores. Inside the VM I spin up a further machine with 2 cores. Once
  KVM emulation is started the load of my amd64 machine rises to > 14/16
  cores for qemu-system-riscv64. KVM seems not to release cores that
  were ever used. Top in 1st VM shows 0.25 cores used for 2nd VM.

  The usage on my amd64 machine only drops when unloading the kvm module in the 
first VM.
  --- 
  ProblemType: Bug
  ApportVersion: 2.32.0-0ubuntu5
  Architecture: riscv64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  zfsdt      2105 F.... wireplumber
   /dev/snd/seq:        zfsdt      2103 F.... pipewire
  CasperMD5json:
   {
     "result": "skip"
   }
  CurrentDesktop: XFCE
  DistroRelease: Ubuntu 25.10
  InstallationDate: Installed on 2025-03-17 (80 days ago)
  InstallationMedia: Ubuntu-Server 25.04 "Plucky Puffin" - Daily riscv64 
(20250316)
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd QEMU Tablet
   Bus 001 Device 003: ID 0627:0001 Adomax Technology Co., Ltd QEMU Tablet
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
  MachineType: QEMU QEMU Virtual Machine
  Package: linux (not installed)
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
  ProcFB: 0 virtio_gpudrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.14.0-13-generic 
root=UUID=af336ba2-ea81-4dd5-bada-b3e8e7fb1c58 ro 
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
  ProcVersionSignature: Ubuntu 6.14.0-13.13.2-generic 6.14.0
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No 
PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-6.14.0-13-generic N/A
   linux-backports-modules-6.14.0-13-generic  N/A
   linux-firmware                             20250317.git1d4c88ee-0ubuntu1
  RfKill:
   
  Tags: questing
  Uname: Linux 6.14.0-13-generic riscv64
  UpgradeStatus: Upgraded to questing on 2025-05-17 (19 days ago)
  UserGroups: N/A
  _MarkForUpload: True
  acpidump:
   
  dmi.bios.date: 05/13/2025
  dmi.bios.release: 0.0
  dmi.bios.vendor: Ubuntu distribution of EDK II
  dmi.bios.version: 2025.02-8
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: virt
  dmi.modalias: 
dmi:bvnUbuntudistributionofEDKII:bvr2025.02-8:bd05/13/2025:br0.0:svnQEMU:pnQEMUVirtualMachine:pvrvirt:cvnQEMU:ct1:cvrvirt:sku:
  dmi.product.name: QEMU Virtual Machine
  dmi.product.version: virt
  dmi.sys.vendor: QEMU

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