Re: qemu-system-i386: Could not install MSR_CORE_THREAD_COUNT handler: Success

[Alexander Graf]

Hi Vitaly,

On 30.12.22 19:16, Vitaly Chikunov wrote:
> Alexander,
>
> On Fri, Dec 30, 2022 at 06:44:14PM +0100, Alexander Graf wrote:
> > Hi Vitaly,
> >
> > This is a kvm kernel bug and should be fixed with the latest stable releases. 
> > Which kernel version are you running?
> This is on latest v6.0 stable - 6.0.15.
>
> Maybe there could be workaround for such situations? (Or maybe it's
> possible to make this error non-fatal?) We use qemu+kvm for testing and
> now we cannot test on x86.

I'm confused what's going wrong for you. I tried to reproduce the issue 
locally, but am unable to:

$ uname -a
Linux server 6.0.15-default #1 SMP PREEMPT_DYNAMIC Sat Dec 31 07:52:52 
CET 2022 x86_64 x86_64 x86_64 GNU/Linux
$ linux32 chroot .
$ uname -a
Linux server 6.0.15-default #1 SMP PREEMPT_DYNAMIC Sat Dec 31 07:52:52 
CET 2022 i686 GNU/Linux
$ cd qemu
$ file ./build/qemu-system-i386
./build/qemu-system-i386: ELF 32-bit LSB shared object, Intel 80386, 
version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux.so.2, 
for GNU/Linux 3.2.0, 
BuildID[sha1]=f75e20572be5c604c121de4497397665c168aa4c, with debug_info, 
not stripped
$ ./build/qemu-system-i386 --version
QEMU emulator version 7.2.0 (v7.2.0-dirty)
Copyright (c) 2003-2022 Fabrice Bellard and the QEMU Project developers
$ ./build/qemu-system-i386 -nographic -enable-kvm
SeaBIOS (version rel-1.16.1-0-g3208b098f51a-prebuilt.qemu.org)
[...]


Can you please double check whether your host kernel version is 6.0.15? 
Please paste the output of "uname -a".


Alex