Re: [ANNOUNCE] kvm-48 release

[Farkas Levente <lfarkas-lWVWdrzSO4GHXe+LvDLADg@public.gmane.org>]

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Farkas Levente wrote:
> Avi Kivity wrote:
>> kvm-47 had a host memory corruption bug when setting the guest pte dirty 
>> bit, so here's kvm-48 with a fix.
>>
>> Note that guest time accounting, below, will only work with Linux 2.6.24+.
> 
> smp guests still not working with kvm-48:-( i can't image what others
> can do to make it work. guests hang at random stage during boot. i
> attached guests boot screenshot. setup:
> ------------------------------------------------
> - host:
>   - Intel(R) Core(TM)2 Quad CPU Q6600  @ 2.40GHz
>   - Intel S3000AHV
>   - 8GB RAM
>   - CentOS-5
>   - kernel-2.6.18-8.1.14.el5 x86_64 64bit
> - guest-1:
>   - CentOS-5
>   - kernel-2.6.18-8.1.14.el5 i386 32bit
> - guest-2:
>   - CentOS-5
>   - kernel-2.6.18-8.1.14.el5 x86_64 64bit
> - guest-3:
>   - Mandrake-9
>   - kernel-2.4.19.16mdk-1-1mdk 32bit
> - guest-4:
>   - Windows XP Professional 32bit
> ------------------------------------------------
> i try guest-1 and huest-2 with 4 vcpu others with 1 vcpu.
> on host the only thing i've got in dmesg:
> ------------------------------------------------
> Call Trace:
>  <IRQ>  [<ffffffff800b2c30>] softlockup_tick+0xdb/0xed
>  [<ffffffff800933ec>] update_process_times+0x42/0x68
>  [<ffffffff80073d61>] smp_local_timer_interrupt+0x23/0x47
>  [<ffffffff80074423>] smp_apic_timer_interrupt+0x41/0x47
>  [<ffffffff8005bcc2>] apic_timer_interrupt+0x66/0x6c
>  <EOI>  [<ffffffff88205999>] :kvm:kvm_flush_remote_tlbs+0xfb/0x109
>  [<ffffffff88205988>] :kvm:kvm_flush_remote_tlbs+0xea/0x109
>  [<ffffffff88206314>] :kvm:gfn_to_page+0xa3/0xd5
>  [<ffffffff88205573>] :kvm:mark_page_dirty+0x9/0x2a
>  [<ffffffff8820b62c>] :kvm:kvm_mmu_pte_write+0x1fc/0x330
>  [<ffffffff882065d9>] :kvm:emulator_write_emulated_onepage+0x6e/0xce
>  [<ffffffff8820fcd0>] :kvm:x86_emulate_insn+0x2b98/0x4134
>  [<ffffffff80008e1a>] __handle_mm_fault+0x832/0xdf2
>  [<ffffffff8840a404>] :kvm_intel:vmcs_readl+0x17/0x1c
>  [<ffffffff88206ac2>] :kvm:emulate_instruction+0x152/0x290
>  [<ffffffff8840cb98>] :kvm_intel:handle_exception+0x170/0x250
>  [<ffffffff882074f6>] :kvm:kvm_vcpu_ioctl+0x343/0xf43
>  [<ffffffff80044d32>] try_to_wake_up+0x407/0x418
>  [<ffffffff800850b5>] __wake_up_common+0x3e/0x68
>  [<ffffffff8002dd9c>] __wake_up+0x38/0x4f
>  [<ffffffff80021b8a>] __up_read+0x19/0x7f
>  [<ffffffff8011735a>] avc_has_perm+0x43/0x55
>  [<ffffffff80117e91>] inode_has_perm+0x56/0x63
>  [<ffffffff80058bf1>] getnstimeofday+0x10/0x28
>  [<ffffffff80086c37>] default_wake_function+0x0/0xe
>  [<ffffffff80117f32>] file_has_perm+0x94/0xa3
>  [<ffffffff8003fc5b>] do_ioctl+0x21/0x6b
>  [<ffffffff8002fa61>] vfs_ioctl+0x248/0x261
>  [<ffffffff8004a267>] sys_ioctl+0x59/0x78
>  [<ffffffff8005b2c1>] tracesys+0xd1/0xdc
> ------------------------------------------------

the situation is even worse, the guests are hang during boot even with
single vcpu and even with kvm-46:-( i attached another screenshot. but
after i kill the guest and start it again it works. it seems the problem
occurs when i start more guest at the same time (eg. after reboot the
host). and it seems there is some kind of acpi error since all of the
guest hang screenshot contains some kind of acpi error.

-- 
  Levente                               "Si vis pacem para bellum!"

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