On Wed, 10 Apr 2024 at 11:03, Ard Biesheuvel <ardb@xxxxxxxxxx> wrote: > > On Wed, 10 Apr 2024 at 09:00, Pascal Ernster <git@xxxxxxxxxxxxxx> wrote: > > > > [2024-04-10 07:34] Borislav Petkov: > > > On Tue, Apr 09, 2024 at 06:38:53PM +0200, Pascal Ernster wrote: > > >> Just to make sure this doesn't get lost: This patch causes the kernel to not > > >> boot on several x86_64 VMs of mine (I haven't tested it on a bare metal > > >> machine). For details and a kernel config to reproduce the issue, see https://lore.kernel.org/stable/fd186a2b-0c62-4942-bed3-a27d72930310@xxxxxxxxxxxxxx/ > > > > Based on your XML description, I have extracted the command line below, to boot a kernel built from the config you provided (but not using the arch build scripts). I am using the same x86 initramfs I use for all my boot testing, but that shouldn't make a difference here. Both your 'working' and 'broken' kernels work fine for me, both with and without OVMF firmware, so I'm a bit stuck here. Could you please try to reproduce using the command line below? /usr/bin/qemu-system-x86_64 -name guest=kernel_issue,debug-threads=on -machine pc-q35-8.2,usb=off,smm=on,dump-guest-core=off,memory-backend=pc.ram,hpet=off,acpi=on -accel kvm -cpu host,migratable=on -m size=2097152k -object '{"qom-type":"memory-backend-ram","id":"pc.ram","size":2147483648}' -overcommit mem-lock=off -smp 1,sockets=1,cores=1,threads=1 -uuid 3ef94585-9ed2-464c-97ca-546fe9b42e2d -display none -no-user-config -nodefaults -rtc base=utc,driftfix=slew -global kvm-pit.lost_tick_policy=delay -no-shutdown -global ICH9-LPC.disable_s3=1 -global ICH9-LPC.disable_s4=1 -boot strict=on -kernel /usr/local/google/home/ardb/linux-build/arch/x86/boot/bzImage -initrd /usr/local/google/home/ardb/rootfs-x86.cpio.gz -append 'console=ttyS0,115200 intel_iommu=on lockdown=confidentiality ia32_emulation=0 usbcore.nousb loglevel=7 earlyprintk=serial,ttyS0,115200' -device '{"driver":"pcie-root-port","port":8,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x1"}' -device '{"driver":"pcie-root-port","port":9,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x1.0x1"}' -device '{"driver":"pcie-root-port","port":10,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x1.0x2"}' -device '{"driver":"pcie-root-port","port":11,"chassis":4,"id":"pci.4","bus":"pcie.0","addr":"0x1.0x3"}' -device '{"driver":"pcie-root-port","port":12,"chassis":5,"id":"pci.5","bus":"pcie.0","addr":"0x1.0x4"}' -device '{"driver":"pcie-root-port","port":13,"chassis":6,"id":"pci.6","bus":"pcie.0","addr":"0x1.0x5"}' -chardev stdio,id=charserial0 -device '{"driver":"isa-serial","chardev":"charserial0","id":"serial0","index":0}' -audiodev '{"id":"audio1","driver":"none"}' -global ICH9-LPC.noreboot=off -watchdog-action reset -device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.4","addr":"0x0"}' -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny -msg timestamp=on
