https://bugzilla.kernel.org/show_bug.cgi?id=50921 --- Comment #15 from Anonymous Emailer <anonymous@xxxxxxxxxxxxxxxxxxxx> 2012-11-26 20:29:28 --- Reply-To: xiaoguangrong@xxxxxxxxxxxxxxxxxx Sorry, forgot to CC Lucio Crusca. On 11/27/2012 04:09 AM, Xiao Guangrong wrote: > On 11/24/2012 09:44 PM, bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote: >> https://bugzilla.kernel.org/show_bug.cgi?id=50921 >> >> >> >> >> >> --- Comment #5 from Lucio Crusca <lucio@xxxxxxxxxx> 2012-11-24 13:44:16 --- >> Here the first tests results: >> >> vbox modules do not make a difference (tried rmmod vboxpci vboxnetadp >> vboxnetflt vboxdrv and then kvm ...). >> >> The trace.dat is about 60M, I could upload it somewhere, however I tried >> looking at it and I'm reasonably sure it hangs here: >> >> $ trace-cmd report | grep 125\\.332 | tail >> kvm-6588 [000] 125.332264: kvm_entry: vcpu 0 >> kvm-6588 [000] 125.332264: kvm_emulate_insn: 10000:44f8: 75 >> 27 > > Hmm... no 'kvm_exit' message. It looks like the infinite loop is caused by: > > | /* Don't enter VMX if guest state is invalid, let the exit handler > | start emulation until we arrive back to a valid state */ > | if (vmx->emulation_required && emulate_invalid_guest_state) > | return; > > (vmx_vcpu_run in arch/x86/kvm/vmx.c) > > And, i noticed 'ept' is not supported on your box, that means > 'enable_unrestricted_guest' is disabled. I guess something was wrong > when emulate big real mode. > > Could you reload kvm-intel.ko with 'emulate_invalid_guest_state = 0', > and see what will happen. > > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug.-- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
