** Changed in: qemu
Status: Fix Committed = Fix Released
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https://bugs.launchpad.net/bugs/957622
Title:
kvm -kernel with grub multiboot kernel dumps core or
** Changed in: qemu
Status: Fix Committed = Fix Released
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https://bugs.launchpad.net/bugs/957622
Title:
kvm -kernel with grub multiboot kernel dumps core or exits
To manage
This fix-commited upstream at
http://git.qemu.org/?p=qemu.git;a=commit;h=9c3a596a03cc10c2d9097f057b9ccb9d557a4d5f
.
** Changed in: qemu
Status: Confirmed = Fix Committed
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** Description changed:
I attempted to use kvm -kernel with a grub multiboot image, specifically
grub-maverick-20100729.img at [1]. That file was built using [2]
$
Thanks, Scott, the patch worked for me so I'll push it.
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https://bugs.launchpad.net/bugs/957622
Title:
kvm -kernel with grub multiboot kernel dumps core or exits
To manage
This bug was fixed in the package qemu-kvm - 1.0+noroms-0ubuntu9
---
qemu-kvm (1.0+noroms-0ubuntu9) precise; urgency=low
* debian/patches/multiboot-load-fix.diff: fix bug when loading
multiboot images such as grub via -kernel parameter (LP: #957622)
-- Scott Moser
Thanks, Scott. Ill wait a day or two to see if there are any upstream
comments, then apply.
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Title:
kvm -kernel with grub multiboot kernel dumps
Forwarded to qemu-devel mailing list at http://www.mail-archive.com
/qemu-de...@nongnu.org/msg103059.html .
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https://bugs.launchpad.net/bugs/957622
Title:
kvm -kernel with grub
** Patch added: suggested debdiff
https://bugs.launchpad.net/qemu/+bug/957622/+attachment/2894794/+files/lp957622.debdiff
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Title:
kvm -kernel
** Tags added: patch
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Title:
kvm -kernel with grub multiboot kernel dumps core or exits
To manage notifications about this bug go to:
** Tags added: regression-release
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Title:
kvm -kernel with grub multiboot kernel dumps core or exits
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some more info, with debug enabled in hw/multiboot.kvm on kvm git trunk:
$ ./x86_64-softmmu/qemu-system-x86_64 --machine accel=tcg -kernel
~/grub-maverick-20100729.img
qemu: I believe we found a multiboot image!
multiboot: mh_header_addr = 0x10025c
multiboot: mh_load_addr = 0x10
multiboot:
a quick look at source from the above, and this appears to have been
broken/influenced by commit for multiboot: Fix bss segment support.
Some evidence to the validity of the multiboot image is here:
$ bzr branch http://bzr.savannah.gnu.org/r/grub/trunk/multiboot
$ cd multiboot
$ ./autogen.sh
$
I'm pretty sure this is a bug in the linked commit above, in that it
does not account for this statement in the multiboot spec:
`load_end_addr'
Contains the physical address of the end of the data segment.
(load_end_addr - load_addr) specifies how much data to load. This
implies
I've a fix for this upstream at
http://thread.gmane.org/gmane.comp.emulators.kvm.devel/88404
** Changed in: qemu-kvm (Ubuntu)
Status: New = In Progress
** Changed in: qemu
Status: New = Confirmed
** Changed in: qemu-kvm (Ubuntu)
Importance: Undecided = Medium
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