diff options
Diffstat (limited to 'classification_output/04/other/16056596')
| -rw-r--r-- | classification_output/04/other/16056596 | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/classification_output/04/other/16056596 b/classification_output/04/other/16056596 deleted file mode 100644 index c08ed7aa7..000000000 --- a/classification_output/04/other/16056596 +++ /dev/null @@ -1,106 +0,0 @@ -other: 0.980 -semantic: 0.979 -assembly: 0.975 -instruction: 0.975 -device: 0.973 -boot: 0.971 -graphic: 0.970 -mistranslation: 0.961 -socket: 0.952 -vnc: 0.946 -network: 0.940 -KVM: 0.934 - -[BUG][powerpc] KVM Guest Boot Failure and Hang at "Booting Linux via __start()" - -Bug Description: -Encountering a boot failure when launching a KVM guest with -'qemu-system-ppc64'. The guest hangs at boot, and the QEMU monitor -crashes. -Reproduction Steps: -# qemu-system-ppc64 --version -QEMU emulator version 9.2.50 (v9.2.0-2799-g0462a32b4f) -Copyright (c) 2003-2025 Fabrice Bellard and the QEMU Project developers -# /usr/bin/qemu-system-ppc64 -name avocado-vt-vm1 -machine -pseries,accel=kvm \ --m 32768 -smp 32,sockets=1,cores=32,threads=1 -nographic \ - -device virtio-scsi-pci,id=scsi \ --drive -file=/home/kvmci/tests/data/avocado-vt/images/rhel8.0devel-ppc64le.qcow2,if=none,id=drive0,format=qcow2 -\ --device scsi-hd,drive=drive0,bus=scsi.0 \ - -netdev bridge,id=net0,br=virbr0 \ - -device virtio-net-pci,netdev=net0 \ - -serial pty \ - -device virtio-balloon-pci \ - -cpu host -QEMU 9.2.50 monitor - type 'help' for more information -char device redirected to /dev/pts/2 (label serial0) -(qemu) -(qemu) qemu-system-ppc64: warning: kernel_irqchip allowed but -unavailable: IRQ_XIVE capability must be present for KVM -Falling back to kernel-irqchip=off -** Qemu Hang - -(In another ssh session) -# screen /dev/pts/2 -Preparing to boot Linux version 6.10.4-200.fc40.ppc64le -(mockbuild@c23cc4e677614c34bb22d54eeea4dc1f) (gcc (GCC) 14.2.1 20240801 -(Red Hat 14.2.1-1), GNU ld version 2.41-37.fc40) #1 SMP Sun Aug 11 -15:20:17 UTC 2024 -Detected machine type: 0000000000000101 -command line: -BOOT_IMAGE=(ieee1275/disk,msdos2)/vmlinuz-6.10.4-200.fc40.ppc64le -root=/dev/mapper/fedora-root ro rd.lvm.lv=fedora/root crashkernel=1024M -Max number of cores passed to firmware: 2048 (NR_CPUS = 2048) -Calling ibm,client-architecture-support... done -memory layout at init: - memory_limit : 0000000000000000 (16 MB aligned) - alloc_bottom : 0000000008200000 - alloc_top : 0000000030000000 - alloc_top_hi : 0000000800000000 - rmo_top : 0000000030000000 - ram_top : 0000000800000000 -instantiating rtas at 0x000000002fff0000... done -prom_hold_cpus: skipped -copying OF device tree... -Building dt strings... -Building dt structure... -Device tree strings 0x0000000008210000 -> 0x0000000008210bd0 -Device tree struct 0x0000000008220000 -> 0x0000000008230000 -Quiescing Open Firmware ... -Booting Linux via __start() @ 0x0000000000440000 ... -** Guest Console Hang - - -Git Bisect: -Performing git bisect points to the following patch: -# git bisect bad -e8291ec16da80566c121c68d9112be458954d90b is the first bad commit -commit e8291ec16da80566c121c68d9112be458954d90b (HEAD) -Author: Nicholas Piggin <npiggin@gmail.com> -Date: Thu Dec 19 13:40:31 2024 +1000 - - target/ppc: fix timebase register reset state -(H)DEC and PURR get reset before icount does, which causes them to -be -skewed and not match the init state. This can cause replay to not -match the recorded trace exactly. For DEC and HDEC this is usually -not -noticable since they tend to get programmed before affecting the - target machine. PURR has been observed to cause replay bugs when - running Linux. - - Fix this by resetting using a time of 0. - - Message-ID: <20241219034035.1826173-2-npiggin@gmail.com> - Signed-off-by: Nicholas Piggin <npiggin@gmail.com> - - hw/ppc/ppc.c | 11 ++++++++--- - 1 file changed, 8 insertions(+), 3 deletions(-) - - -Reverting the patch helps boot the guest. -Thanks, -Misbah Anjum N - |