[Qemu-devel] Assertion error when installing OpenBSD 6.3 in Linux 4.8.12

[Qemu-devel] Assertion error when installing OpenBSD 6.3 in Linux 4.8.12

[Hristo Mihaylov]

Hello,
I'm trying to install OpenBSD 6.3 on Arch Linux.

This is the start script I'm using:

```

#!/bin/sh

qemu-system-x86_64 \

    -enable-kvm \

    -m 2048 \

    -nic user,model=virtio \

    -drive file=openbsd63.qcow2,media=disk,if=virtio \

    -cdrom openbsd63.iso \

    -display gtk

```

Running ls on image and disk:

-rw-r--r-- 1 asthma asthma 336M Oct 7 07:53 openbsd63.iso

-rw-r--r-- 1 asthma asthma 193K Oct 10 22:00 openbsd63.qcow2


This is the crash output:

qemu-system-x86_64:
/build/qemu/src/qemu-3.0.0/include/exec/memory_ldst_cached.inc.h:85:
address_space_stw_le_cached: Assertion `addr < cache->len && 2 <=
cache->len - addr' failed.


Running `uname -a` yields:

Linux dev 4.18.12.a-1-hardened #1 SMP PREEMPT Thu Oct 4 14:02:21 CEST
2018 x86_64 GNU/Linux

And the qemu version is: 3.0.0


Am I doing something wrong or is this a bug?


Regards,

Hristo Mihaylov

Re: [Qemu-devel] Assertion error when installing OpenBSD 6.3 in Linux 4.8.12

[Peter Maydell]

On 13 October 2018 at 17:50, Hristo Mihaylov
<za.hristomihaylov@gmail.com> wrote:
> Hello,
> I'm trying to install OpenBSD 6.3 on Arch Linux.

> This is the crash output:
>
> qemu-system-x86_64:
> /build/qemu/src/qemu-3.0.0/include/exec/memory_ldst_cached.inc.h:85:
> address_space_stw_le_cached: Assertion `addr < cache->len && 2 <=
> cache->len - addr' failed.

> Am I doing something wrong or is this a bug?

Hi; yes, this is a known bug (that affects OpenBSD guests
using virtio networking). It's fixed in QEMU git master
in commit db812c4073c77, and will be in the next (3.1)
release as well as the next 3.0.x release.

thanks
-- PMM