I've had an oops when running kvm-18 on my dual core intel laptop. This
happened when I was installing Debian Etch with a net-install, the crash
happened when it was working to download and install packages from the
network. I've used a tap device bridged to my ethernet device.
The oops follows, let me know if you need anything else:
BUG: unable to handle kernel paging request at virtual address 448b0c48
printing eip:
f8fc648a
*pde = 00000000
Oops: 0000 [#1]
SMP
Modules linked in: tun kvm_intel kvm binfmt_misc cpufreq_userspace cpufreq_power
save speedstep_centrino xt_state ipt_TCPMSS xt_tcpudp iptable_nat nf_nat nf_conn
track_ipv4 nf_conntrack nfnetlink iptable_filter ip_tables x_tables button ac ba
ttery bridge ipv6 llc dm_crypt dm_snapshot dm_mirror dm_mod backlight ide_generi
c rt61 arc4 ecb blkcipher rc80211_simple pcmcia snd_hda_intel snd_hda_codec rt61
pci 80211 rt2x00debug firmware_class sdhci mmc_core psmouse snd_pcm snd_timer sn
d soundcore i2c_piix4 eeprom_93cx6 crc_itu_t snd_page_alloc serio_raw yenta_sock
et rsrc_nonstatic pcmcia_core pcspkr i2c_core ati_agp agpgart shpchp pci_hotplug
mousedev tsdev evdev eth1394 ext3 jbd mbcache ide_cd cdrom ide_disk usbhid 8139
nf_conntrack nfnetlink iptable_filter ip_tables x_tables button ac battery
bridge ipv6 llc dm_crypt dm_snapshot dm_mirror dm_mod backlight ide_generic
rt61 arc4 ecb blkc
ipher rc80211_simple pcmcia snd_hda_intel snd_hda_codec rt61pci 80211
rt2x00debug firmware_class sdhci mmc_core psmouse snd_pcm snd_timer snd
soundcore i2c_piix4 eeprom_9
3cx6 crc_itu_t snd_page_alloc serio_raw yenta_socket rsrc_nonstatic pcmcia_core
pcspkr i2c_core ati_agp agpgart shpchp pci_hotplug mousedev tsdev evdev eth1394
ext3 jbd m
bcache ide_cd cdrom ide_disk usbhid 8139cp atiixp ohci1394 ieee1394 8139too mii
generic ide_core ehci_hcd ohci_hcd usbcore thermal processor fan vga16fb
vgastate
CPU: 1
EIP: 0060:[<f8fc648a>] Not tainted VLI
EFLAGS: 00010283 (2.6.20-rc6 #19)
EIP is at mmu_page_remove_parent_pte+0xa/0xc1 [kvm]
eax: ca6b4464 ebx: 9cbd8bff ecx: c7c80000 edx: 448b0c24
esi: 448b0c24 edi: c7c80000 ebp: ca6b4464 esp: d9f41ba4
ds: 007b es: 007b ss: 0068
Process kvm (pid: 18786, ti=d9f40000 task=e52f8a70 task.ti=d9f40000)
Stack: 9cbd8bff c7c80000 ca6b4a60 ca6b4464 f8fc695d 0000203f ca6b6fb8 00000fff
00000000 00000000 c11962e0 0000203f 00000000 00000001 f8fc36d4 00000001
ca6b4464 0203ffff 00000000 00000000 00000000 00000000 f8fd09a0 f8fd09a0
Call Trace:
[<f8fc695d>] kvm_mmu_pre_write+0x14a/0x18b [kvm]
[<f8fc36d4>] emulator_write_emulated+0xb0/0x166 [kvm]
[<f8fcb2a6>] x86_emulate_memop+0x23a3/0x303d [kvm]
[<f8fc6b00>] gpa_to_hpa+0x34/0xa1 [kvm]
[<f8fc76c8>] paging32_walk_addr+0x67/0x25b [kvm]
[<f8fc6b21>] gpa_to_hpa+0x55/0xa1 [kvm]
[<c015aaf4>] free_block+0xaa/0xf4
[<c015aaf3>] free_block+0xa9/0xf4
[<f8fc51a9>] emulate_instruction+0xc6/0x23a [kvm]
[<c012613d>] run_timer_softirq+0x36/0x15b
[<f8f7ec85>] handle_exception+0x119/0x1ca [kvm_intel]
[<f8f7eada>] kvm_vmx_return+0x143/0x1d5 [kvm_intel]
[<c015482c>] remove_vm_area+0x2c/0x48
[<c0154888>] __vunmap+0x40/0xd1
[<f8fc3ad4>] pio_copy_data+0xb4/0xbe [kvm]
[<f8fc531d>] kvm_vcpu_ioctl+0x0/0xa93 [kvm]
[<f8fc5570>] kvm_vcpu_ioctl+0x253/0xa93 [kvm]
[<c024d38d>] nf_hook_slow+0x4d/0xb5
[<f8dab91d>] br_handle_frame+0x154/0x17f [bridge]
[<f8dab6fa>] br_handle_frame_finish+0x0/0xcf [bridge]
[<c016944a>] core_sys_select+0x1ec/0x2c7
[<c0107461>] save_i387+0x122/0x134
[<c01020f5>] setup_sigcontext+0x105/0x189
[<c01028bb>] do_notify_resume+0x4f2/0x5e8
[<c01430d7>] handle_edge_irq+0xe2/0x105
[<c0106f15>] convert_fxsr_from_user+0x1c/0xdc
[<f8fc531d>] kvm_vcpu_ioctl+0x0/0xa93 [kvm]
[<c016834f>] do_ioctl+0x1f/0x62
[<c01685d6>] vfs_ioctl+0x244/0x256
[<c0168634>] sys_ioctl+0x4c/0x64
[<c0102cba>] sysenter_past_esp+0x5f/0x85
=======================
Code: a8 5d 58 5b 5e 5f 5d c3 53 89 c3 eb 0c 48 89 03 8b 44 83 04 e8 50 44 19
c7 8b 03 85 c0 75 ee 5b c3 55 57 56 53 89 c5 89 d6 89 cf <83> 7a 24 00 75 09 39
4a 2c 74 75
0f 0b eb fe 8b 52 2c eb 7d 8b
EIP: [<f8fc648a>] mmu_page_remove_parent_pte+0xa/0xc1 [kvm] SS:ESP 0068:d9f41ba4
Baruch
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