Hi Peter, On 23/03/18 13:19, Peter Xu wrote: > On Fri, Mar 23, 2018 at 01:01:43PM +0100, Auger Eric wrote: >> Hi, >> >> On 23/03/18 11:26, Peter Maydell wrote: >>> On 23 March 2018 at 10:24, Auger Eric <eric.au...@redhat.com> wrote: >>>> Hi, >>>> >>>> I observe a regression on KVM accelerated qemu-system-aarch64: >>>> >>>> Unexpected error in kvm_device_access() at >>>> /home/augere/UPSTREAM/qemu/accel/kvm/kvm-all.c:2164: >>>> 2018-03-23T09:59:59.629439Z qemu-system-aarch64: KVM_GET_DEVICE_ATTR >>>> failed: Group 6 attr 0x000000000000c664: Device or resource busy >>>> 2018-03-23 10:00:00.085+0000: shutting down, reason=crashed >>> >>> Can you get a backtrace for this? (I guess you'd need to fiddle >>> with the kvm_device_access() code to make it assert rather >>> than passing back the error). >> >> OK. I will try to do so. As I could have expected, I cannot reproduce on >> a standalone qemu command line. The problem observed above is seen with >> libvirt launch which may be doing some other QMP stuff concurrently? > > Maybe not concurrently inside libvirt, but after the patches AFAIK the > QMP part can be concurrent with something else or break some timing. > > Anyway, sorry for that! I'll see what I can do to help.
No worries Thanks Eric >
