2017-02-06 13:02 GMT+03:00 Dr. David Alan Gilbert <dgilb...@redhat.com>:
> Hi Matwey,
> 1) Can you provide me with the output of the 'dmesg' command straight after
> boot on your host.
I've attached dmesg. I had to do this from beginning.
> 2) If you look in target/i386/kvm.c in kvm_arch_init_vcpu around
line 871 is some code like:
kvm_arch_init_vcpu ver=7300402
Indeed, the guest kernel started.
>
> if ((ver & 0xff) > 0) {
> has_msr_architectural_pmu = true;
> num_architectural_pmu_counters = (ver & 0xff00) >> 8;
>
> /* Shouldn't be more than 32, since that's the number of bits
> * available in EBX to tell us _which_ counters are available.
> * Play it safe.
> */
> if (num_architectural_pmu_counters > MAX_GP_COUNTERS) {
> num_architectural_pmu_counters = MAX_GP_COUNTERS;
> }
>
> change the start of that to :
> fprintf(stderr, "kvm_arch_init_vcpu ver=%x\n", ver);
> if (0) {
>
> I think that might make it work, but please tell us what it prints
> as ver=
>
> Dave
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1661386
>
> Title:
> Assertion `ret == cpu->kvm_msr_buf->nmsrs' failed
>
> Status in QEMU:
> New
>
> Bug description:
> Hello,
>
>
> I see the following when try to run qemu from master as the following:
>
> # ./x86_64-softmmu/qemu-system-x86_64 --version
> QEMU emulator version 2.8.50 (v2.8.0-1006-g4e9f524)
> Copyright (c) 2003-2016 Fabrice Bellard and the QEMU Project developers
> # ./x86_64-softmmu/qemu-system-x86_64 -machine accel=kvm -nodefaults
> -no-reboot -nographic -cpu host -vga none -kernel .build.kernel.kvm
> -initrd .build.initrd.kvm -append 'panic=1 no-kvmclock console=ttyS0
> loglevel=7' -m 1024 -serial stdio
> qemu-system-x86_64: /home/matwey/lab/qemu/target/i386/kvm.c:1849:
> kvm_put_msrs: Assertion `ret == cpu->kvm_msr_buf->nmsrs' failed.
>
> First broken commit has been bisected:
>
> commit 48e1a45c3166d659f781171a47dabf4a187ed7a5
> Author: Paolo Bonzini <pbonz...@redhat.com>
> Date: Wed Mar 30 22:55:29 2016 +0200
>
> target-i386: assert that KVM_GET/SET_MSRS can set all requested MSRs
>
> This would have caught the bug in the previous patch.
>
> Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
>
> My cpuinfo is the following:
>
> processor : 0
> vendor_id : GenuineIntel
> cpu family : 6
> model : 44
> model name : Intel(R) Xeon(R) CPU X5675 @ 3.07GHz
> stepping : 2
> microcode : 0x14
> cpu MHz : 3066.775
> cache size : 12288 KB
> physical id : 0
> siblings : 2
> core id : 0
> cpu cores : 2
> apicid : 0
> initial apicid : 0
> fpu : yes
> fpu_exception : yes
> cpuid level : 11
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
> cmov pat pse36 clflush dts mmx fxsr sse sse2 ss ht syscall nx rdtscp lm
> constant_tsc arch_perfmon pebs bts nopl xtopology tsc_reliable nonstop_tsc
> aperfmperf pni pclmulqdq vmx ssse3 cx16 sse4_1 sse4_2 popcnt aes hypervisor
> lahf_lm ida arat epb dtherm tpr_shadow vnmi ept vpid
> bugs :
> bogomips : 6133.55
> clflush size : 64
> cache_alignment : 64
> address sizes : 40 bits physical, 48 bits virtual
> power management:
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/qemu/+bug/1661386/+subscriptions
--
With best regards,
Matwey V. Kornilov
http://blog.matwey.name
xmpp://0x2...@jabber.ru
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1661386
Title:
Assertion `ret == cpu->kvm_msr_buf->nmsrs' failed
Status in QEMU:
New
Bug description:
Hello,
I see the following when try to run qemu from master as the following:
# ./x86_64-softmmu/qemu-system-x86_64 --version
QEMU emulator version 2.8.50 (v2.8.0-1006-g4e9f524)
Copyright (c) 2003-2016 Fabrice Bellard and the QEMU Project developers
# ./x86_64-softmmu/qemu-system-x86_64 -machine accel=kvm -nodefaults
-no-reboot -nographic -cpu host -vga none -kernel .build.kernel.kvm
-initrd .build.initrd.kvm -append 'panic=1 no-kvmclock console=ttyS0
loglevel=7' -m 1024 -serial stdio
qemu-system-x86_64: /home/matwey/lab/qemu/target/i386/kvm.c:1849:
kvm_put_msrs: Assertion `ret == cpu->kvm_msr_buf->nmsrs' failed.
First broken commit has been bisected:
commit 48e1a45c3166d659f781171a47dabf4a187ed7a5
Author: Paolo Bonzini <pbonz...@redhat.com>
Date: Wed Mar 30 22:55:29 2016 +0200
target-i386: assert that KVM_GET/SET_MSRS can set all requested MSRs
This would have caught the bug in the previous patch.
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
My cpuinfo is the following:
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 44
model name : Intel(R) Xeon(R) CPU X5675 @ 3.07GHz
stepping : 2
microcode : 0x14
cpu MHz : 3066.775
cache size : 12288 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 clflush dts mmx fxsr sse sse2 ss ht syscall nx rdtscp lm
constant_tsc arch_perfmon pebs bts nopl xtopology tsc_reliable nonstop_tsc
aperfmperf pni pclmulqdq vmx ssse3 cx16 sse4_1 sse4_2 popcnt aes hypervisor
lahf_lm ida arat epb dtherm tpr_shadow vnmi ept vpid
bugs :
bogomips : 6133.55
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1661386/+subscriptions
