diff options
Diffstat (limited to 'results/classifier/111/other/1860914')
| -rw-r--r-- | results/classifier/111/other/1860914 | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/results/classifier/111/other/1860914 b/results/classifier/111/other/1860914 new file mode 100644 index 000000000..32f617a02 --- /dev/null +++ b/results/classifier/111/other/1860914 @@ -0,0 +1,83 @@ +other: 0.159 +semantic: 0.144 +device: 0.098 +boot: 0.090 +PID: 0.070 +vnc: 0.054 +files: 0.054 +permissions: 0.054 +network: 0.050 +graphic: 0.050 +debug: 0.048 +performance: 0.048 +KVM: 0.043 +socket: 0.039 +other: 0.143 +semantic: 0.139 +debug: 0.120 +files: 0.109 +boot: 0.098 +network: 0.070 +PID: 0.069 +device: 0.060 +socket: 0.045 +vnc: 0.040 +performance: 0.038 +permissions: 0.034 +graphic: 0.021 +KVM: 0.013 + +QEMU prepends pathnames to command lines of Multiboot kernels and modules, contrary to the specification + +When QEMU is launched with the -kernel option to boot a Multiboot image, the command line passed in the -append option is additionally prefixed the pathname of the kernel image and a space. Likewise, module command lines passed in the -initrd option are passed with the module pathname and a space prepended. At the very least the former is contary to what is prescribed in the Multiboot specification, version 0.6.96[0], which says in ยง3.3: + +> General-purpose boot loaders should allow user a complete control on command line independently of other factors like image name. + +With respect to module command lines, the spec is less clear, but GNU GRUB2 (the de facto reference implementation) does not prepend pathnames to command lines of either. I haven't tested GRUB legacy, but I assume it exhibits the same behaviour. It would be strange if passing pathnames was in fact intended; bootloader pathnames are useless to the loaded kernel, which may potentially have a completely different view of the file system from the bootloader. + +Also, given that a kernel pathname may contain spaces, skipping it in the command line cannot be done reliably, while loading a Multiboot module from a pathname that contains spaces is outright impossible. + +Found in 4.2.0, but latest git master apparently behaves the same. + +[0]: https://www.gnu.org/software/grub/manual/multiboot/multiboot.html + + + +The QEMU project is currently moving its bug tracking to another system. +For this we need to know which bugs are still valid and which could be +closed already. Thus we are setting the bug state to "Incomplete" now. + +If the bug has already been fixed in the latest upstream version of QEMU, +then please close this ticket as "Fix released". + +If it is not fixed yet and you think that this bug report here is still +valid, then you have two options: + +1) If you already have an account on gitlab.com, please open a new ticket +for this problem in our new tracker here: + + https://gitlab.com/qemu-project/qemu/-/issues + +and then close this ticket here on Launchpad (or let it expire auto- +matically after 60 days). Please mention the URL of this bug ticket on +Launchpad in the new ticket on GitLab. + +2) If you don't have an account on gitlab.com and don't intend to get +one, but still would like to keep this ticket opened, then please switch +the state back to "New" or "Confirmed" within the next 60 days (other- +wise it will get closed as "Expired"). We will then eventually migrate +the ticket automatically to the new system (but you won't be the reporter +of the bug in the new system and thus you won't get notified on changes +anymore). + +Thank you and sorry for the inconvenience. + + + +This is an automated cleanup. This bug report has been moved to QEMU's +new bug tracker on gitlab.com and thus gets marked as 'expired' now. +Please continue with the discussion here: + + https://gitlab.com/qemu-project/qemu/-/issues/425 + + |