diff options
Diffstat (limited to 'results/classifier/gemma3:12b/kvm/1186984')
| -rw-r--r-- | results/classifier/gemma3:12b/kvm/1186984 | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/results/classifier/gemma3:12b/kvm/1186984 b/results/classifier/gemma3:12b/kvm/1186984 new file mode 100644 index 000000000..84f91005e --- /dev/null +++ b/results/classifier/gemma3:12b/kvm/1186984 @@ -0,0 +1,24 @@ + +large -initrd can wrap around in memory causing memory corruption + +We don't use large -initrd in libguestfs any more, but I noticed that a large -initrd file now crashes qemu spectacularly: + +$ ls -lh /tmp/kernel /tmp/initrd +-rw-r--r--. 1 rjones rjones 273M Jun 3 14:02 /tmp/initrd +lrwxrwxrwx. 1 rjones rjones 35 Jun 3 14:02 /tmp/kernel -> /boot/vmlinuz-3.9.4-200.fc18.x86_64 + +$ ./x86_64-softmmu/qemu-system-x86_64 -L pc-bios \ + -kernel /tmp/kernel -initrd /tmp/initrd -hda /tmp/test1.img -serial stdio \ + -append console=ttyS0 + +qemu crashes with one of several errors: + +PFLASH: Possible BUG - Write block confirm + +qemu: fatal: Trying to execute code outside RAM or ROM at 0x00000000000b96cd + +If -enable-kvm is used: + +KVM: injection failed, MSI lost (Operation not permitted) + +In all cases the SDL display fills up with coloured blocks before the crash (see the attached screenshot). \ No newline at end of file |