Re: Bug#741873: qemu-kvm: crashes booting gnumach (Hurd) with multiboot options

[Michael Tokarev <mjt@tls.msk.ru>]

19.03.2014 06:17, Gabriele Giacone wrote:
[]
> Current qemu on wheezy (1.1.2) can boot hurd CD only on systems with
> hwaccel and by specifying --enable-kvm. it crashes without hwaccel,
> see [0]. Not a real problem on jenkins.d.n which has hwaccel, but IMHO
> [0] is important enough to get an upload to stable, it makes
> installing a hurd VM on a wheezy host hardware dependent.
> Whereas this bug affects Debian infrastructure, assuming d.n as part
> of Debian infrastructure and assuming that would count something if it
> was d.o.

Please note that without hwaccel, it is just tooo slow to be useful.
In my opinion anyway.  This hardware dependency only means x86
(because on other arches we'll have to emulate the CPU anyway,
and a. this bug will show up, and b. it will be painfully slow
due to emulation), but x86 is the majority of debian machines
these days.  Other than that, -- it is difficult to find real
(non-trash) x86 machine without hwaccel.  Almost all machines
without svn/vmx are just too old and slow to be useful.

> How about identifying changes to backport fixing this bug and
> proposing both to release team?
> [0] https://bugs.debian.org/719633

Here's the fix, which is rather simple (and is included into upstream
1.7.1 stable release):

http://git.qemu.org/?p=qemu.git;a=commitdiff;h=33dfdb56f2f3c8686d218395b871ec12fd5bf30b

However, if we're to made a new stable release, I'd like to include
quite some more changes too, which are useful for other users.  Not
that right now I have time for that :(

Thanks,

/mjt