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. Thanks, > > Thanks, > > Alex > > > > Am 30.12.2022 um 15:30 schrieb Vitaly Chikunov <vt@xxxxxxxxxxxx>: > > > > Hi, > > > > QEMU 7.2.0 when run on 32-bit x86 architecture fails with: > > > > i586$ qemu-system-i386 -enable-kvm > > qemu-system-i386: Could not install MSR_CORE_THREAD_COUNT handler: Success > > i586$ qemu-system-x86_64 -enable-kvm > > qemu-system-x86_64: Could not install MSR_CORE_THREAD_COUNT handler: Success > > > > Minimal reproducer is `qemu-system-i386 -enable-kvm'. And this only > > happens on x86 (linux32 personality and binaries on x86_64 host): > > > > i586$ file /usr/bin/qemu-system-i386 > > /usr/bin/qemu-system-i386: ELF 32-bit LSB pie executable, Intel 80386, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux.so.2, BuildID[sha1]=0ba1d953bcb7a691014255954f060ff404c8df90, for GNU/Linux 3.2.0, stripped > > i586$ /usr/bin/qemu-system-i386 --version > > QEMU emulator version 7.2.0 (qemu-7.2.0-alt1) > > Copyright (c) 2003-2022 Fabrice Bellard and the QEMU Project developers > > > > Thanks, > > >