Re: KVM-33 + Windows Server 2003 = VMX->OK / SVM->kernel panic?

Avi Kivity
2007-07-24T12:27:21Z

Alessandro Sardo wrote:

One at a time.

> Test #3
> CPU model: 1 x Single-Core AMD Athlon64 Processor 3500+ AM2
> Host: RHEL5 x86_64, kernel 2.6.18-8.1.8.el5
> KVM-33
> Result -> boots fine, but when I try to install the SP2 I get the
> following kernel panic:
>
> Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP:
> [<ffffffff883d80ce>] :kvm:x86_emulate_memop+0x2a79/0x3b03
> PGD 7b8a067 PUD 3973067 PMD 0
> Oops: 0002 [1] SMP
> last sysfs file: /class/net/lo/ifindex
> CPU 0
> Modules linked in: kvm_amd(U) kvm(U) tun netconsole bridge
> cpufreq_ondemand video sbs i2c_ec button battery asus_acpi
> acpi_memhotplug ac lp snd_hda_intel snd_hda_codec snd_seq_dummy
> snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss floppy
> snd_mixer_oss snd_pcm pcspkr sg i2c_nforce2 i2c_core snd_timer snd
> shpchp soundcore k8_edac snd_page_alloc parport_pc edac_mc forcedeth
> parport ide_cd cdrom serio_raw dm_snapshot dm_zero dm_mirror dm_mod
> sata_nv libata sd_mod scsi_mod ext3 jbd ehci_hcd ohci_hcd uhci_hcd
> Pid: 2168, comm: kvm Not tainted 2.6.18-8.1.8.el5 #1
> RIP: 0010:[<ffffffff883d80ce>] [<ffffffff883d80ce>]
> :kvm:x86_emulate_memop+0x2a79/0x3b03
> RSP: 0018:ffff81006225d9d8 EFLAGS: 00010246
> RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000003
> RDX: ffff81006225da60 RSI: 0000000000000000 RDI: ffff81006207a130
> RBP: ffffffff883df621 R08: 0000000000000200 R09: 0000000000000000
> R10: ffff81003f18d000 R11: ffffffff883eb542 R12: 0000000000000000
> R13: ffff81006225db78 R14: 0000000000000000 R15: 0000000000000000
> FS: 00000000ffdff000(0000) GS:ffffffff8038a000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 0000000000000000 CR3: 0000000062cd7000 CR4: 00000000000006e0
> Process kvm (pid: 2168, threadinfo ffff81006225c000, task ffff81007d987100)
> Stack: ffffffff883df600 03007fffe0e1ce40 00007fffe0e1cea0 0300010000000040
> ffff81006225db00 0000000000000004 0000000400000000 0300000000000000
> 0000000000000000 0000000000000004 0000000400000000 0000000000000000
> Call Trace:
> [<ffffffff883eb542>] :kvm_amd:svm_get_segment_base+0x0/0x5f
> [<ffffffff883d5657>] :kvm:x86_emulate_memop+0x2/0x3b03
> [<ffffffff883d0e95>] :kvm:emulate_instruction+0xee/0x278
> [<ffffffff883eb542>] :kvm_amd:svm_get_segment_base+0x0/0x5f
> [<ffffffff883eacec>] :kvm_amd:emulate_on_interception+0xf/0x30
> [<ffffffff883ebbed>] :kvm_amd:svm_vcpu_run+0x506/0x599
> [<ffffffff883d11e4>] :kvm:kvm_vcpu_ioctl+0x1c5/0xd04
> [<ffffffff80044d31>] try_to_wake_up+0x407/0x418
> [<ffffffff800850ed>] __wake_up_common+0x3e/0x68
> [<ffffffff8002dd9b>] __wake_up+0x38/0x4f
> [<ffffffff800d8498>] core_sys_select+0x234/0x265
> [<ffffffff80093f38>] __dequeue_signal+0x18b/0x19b
> [<ffffffff80094fd2>] dequeue_signal+0x3c/0xbc
> [<ffffffff8003fc5a>] do_ioctl+0x21/0x6b
> [<ffffffff8002fa60>] vfs_ioctl+0x248/0x261
> [<ffffffff80058bf0>] getnstimeofday+0x10/0x28
> [<ffffffff8004a266>] sys_ioctl+0x59/0x78
> [<ffffffff8005b14e>] system_call+0x7e/0x83
>
>
> Code: 4c 89 00 eb 63 48 8b 94 24 f8 00 00 00 48 8b 84 24 08 01 00
> RIP [<ffffffff883d80ce>] :kvm:x86_emulate_memop+0x2a79/0x3b03
> RSP <ffff81006225d9d8>
> CR2: 0000000000000000
> <0>Kernel panic - not syncing: Fatal exception
> ----
>

Can you post the output of 'objdump -Sr kernel/x86_emulate.o'? Please
ensure that it is exactly the same object used to generate this oops.

--
error compiling committee.c: too many arguments to function