Booting with lilo after kvm upgrade to kvm-64

[Tomas Rusnak <linker@korex.sk>]

Hello everybody

After I update to KVM-66 (from 65), I have problem to boot guests with 
lilo installed. Boot sequence always stop with "LIL" output. With kvm-65 
everythink works great. I have also windows XP guest, which boot without 
problem. With -no-kvm guests boot ok.

Processor: AMD Opteron 2210
KVM: kvm-64
Host: gentoo-sources-2.6.25-r1
Arch: x86_64
Guests: gentoo, 2.6.25, x86_64



dmesg:
Apr 21 09:53:37 kvm BUG: unable to handle kernel NULL pointer 
dereference at 0000000000000000
Apr 21 09:53:37 kvm IP: [<ffffffff88029c85>] 
:kvm:x86_emulate_insn+0x3a47/0x468f
Apr 21 09:53:37 kvm PGD 11e989067 PUD 11ec0a067 PMD 0
Apr 21 09:53:37 kvm Oops: 0002 [2] SMP
Apr 21 09:53:37 kvm CPU 2
Apr 21 09:53:37 kvm Modules linked in: w83627hf hwmon_vid xt_tcpudp 
xt_state iptable_mangle iptable_nat nf_nat nf_conntrack_ipv4 
nf_conntrack iptable_filter ip_tables x_tables tun kvm_amd kvm shpchp 
pci_hotplug k8temp i2c_nforce2 i2c_core
Apr 21 09:53:37 kvm Pid: 7130, comm: kvm Tainted: G      D 
2.6.25-gentoo-r1 #1
Apr 21 09:53:37 kvm RIP: 0010:[<ffffffff88029c85>]  [<ffffffff88029c85>] 
:kvm:x86_emulate_insn+0x3a47/0x468f
Apr 21 09:53:37 kvm RSP: 0018:ffff81011e3e5738  EFLAGS: 00010246
Apr 21 09:53:37 kvm RAX: 0000000000000010 RBX: 0000000000000000 RCX: 
ffff81011e3e7378
Apr 21 09:53:37 kvm RDX: 0000000000000000 RSI: 0000000000000000 RDI: 
ffff81011e3e6000
Apr 21 09:53:37 kvm RBP: ffff81011e3e7378 R08: 0000000000000000 R09: 
0000000000000000
Apr 21 09:53:37 kvm R10: ffffffff88041988 R11: ffff81011e3e7378 R12: 
ffff81011e3e7330
Apr 21 09:53:37 kvm R13: 0000000000000000 R14: ffffffff88033a20 R15: 
0000000000000ce3
Apr 21 09:53:37 kvm FS:  0000000041e68950(0063) 
GS:ffff81011ff1b000(0000) knlGS:0000000000000000
Apr 21 09:53:37 kvm CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
Apr 21 09:53:37 kvm CR2: 0000000000000000 CR3: 000000011e1af000 CR4: 
00000000000006e0
Apr 21 09:53:37 kvm DR0: ffffffff805b34f8 DR1: 0000000000000000 DR2: 
0000000000000000
Apr 21 09:53:37 kvm DR3: 0000000000000000 DR6: 00000000ffff0ff1 DR7: 
0000000000000701
Apr 21 09:53:37 kvm Process kvm (pid: 7130, threadinfo ffff81011e3e4000, 
task ffff81011e560000)
Apr 21 09:53:37 kvm Stack:  ffffffff8021a311 000000000000000f 
00000000fffffff7 ffffffff8021a49b
Apr 21 09:53:37 kvm 00000000ffffffff ffff81011ed41d00 ffffc20001926000 
0000000000000000
Apr 21 09:53:37 kvm ffffffff8021a311 ffffffff802347a0 ffff81011ed41d00 
ffffffff880419e0
Apr 21 09:53:37 kvm Call Trace:
Apr 21 09:53:37 kvm [<ffffffff8021a311>] ? do_flush_tlb_all+0x0/0x2f
Apr 21 09:53:37 kvm [<ffffffff8021a49b>] ? smp_call_function_mask+0x47/0x55
Apr 21 09:53:37 kvm [<ffffffff8021a311>] ? do_flush_tlb_all+0x0/0x2f
Apr 21 09:53:37 kvm [<ffffffff802347a0>] ? on_each_cpu+0x19/0x25
Apr 21 09:53:37 kvm [<ffffffff880419e0>]
Apr 21 09:53:37 kvm [<ffffffff88020501>] ? 
:kvm:kvm_get_cs_db_l_bits+0x9/0x2f
Apr 21 09:53:37 kvm [<ffffffff8801f101>] ? 
:kvm:emulate_instruction+0x1ef/0x3a5
Apr 21 09:53:37 kvm [<ffffffff8801f101>] ? 
:kvm:emulate_instruction+0x1ef/0x3a5
Apr 21 09:53:37 kvm [<ffffffff88041fbc>]
Apr 21 09:53:37 kvm [<ffffffff88020148>] ? 
:kvm:kvm_arch_vcpu_ioctl_run+0x44a/0x5b8
Apr 21 09:53:37 kvm [<ffffffff8801bf23>] ? :kvm:kvm_resched+0x1b4/0x9b7
Apr 21 09:53:37 kvm [<ffffffff8802ad63>] ? :kvm:kvm_pic_set_irq+0x21/0x6b
Apr 21 09:53:37 kvm [<ffffffff8801e81b>] ? 
:kvm:kvm_arch_vm_ioctl+0x38e/0x5e6
Apr 21 09:53:37 kvm [<ffffffff8026217b>] ? zone_statistics+0x41/0x94
Apr 21 09:53:37 kvm [<ffffffff8025bc16>] ? 
get_page_from_freelist+0x457/0x5af
Apr 21 09:53:37 kvm [<ffffffff8025bdc0>] ? __alloc_pages+0x52/0x2ee
Apr 21 09:53:37 kvm [<ffffffff80225e50>] ? source_load+0x25/0x41
Apr 21 09:53:37 kvm [<ffffffff802286f1>] ? find_busiest_group+0x268/0x742
Apr 21 09:53:37 kvm [<ffffffff80225552>] ? hrtick_set+0x99/0x107
Apr 21 09:53:37 kvm [<ffffffff805b3aae>] ? thread_return+0x64/0xa5
Apr 21 09:53:37 kvm [<ffffffff80249099>] ? get_futex_key+0x76/0x14d
Apr 21 09:53:37 kvm [<ffffffff80249816>] ? unqueue_me+0x6b/0x73
Apr 21 09:53:37 kvm [<ffffffff80249bc1>] ? futex_wait+0x290/0x327
Apr 21 09:53:37 kvm [<ffffffff80227c36>] ? try_to_wake_up+0xfa/0x10c
Apr 21 09:53:37 kvm [<ffffffff80229752>] ? __wake_up_common+0x49/0x74
Apr 21 09:53:37 kvm [<ffffffff80268c29>] ? find_extend_vma+0x16/0x61
Apr 21 09:53:37 kvm [<ffffffff80249099>] ? get_futex_key+0x76/0x14d
Apr 21 09:53:37 kvm [<ffffffff803c1439>] ? __up_read+0x10/0x8a
Apr 21 09:53:37 kvm [<ffffffff8024955e>] ? futex_wake+0xfa/0x10c
Apr 21 09:53:37 kvm [<ffffffff80242e5a>] ? ktime_get_ts+0x56/0x5d
Apr 21 09:53:37 kvm [<ffffffff8801c3cb>] ? :kvm:kvm_resched+0x65c/0x9b7
Apr 21 09:53:37 kvm [<ffffffff80225552>] ? hrtick_set+0x99/0x107
Apr 21 09:53:37 kvm [<ffffffff8028a311>] ? vfs_ioctl+0x29/0x6f
Apr 21 09:53:37 kvm [<ffffffff8028a5a4>] ? do_vfs_ioctl+0x24d/0x25c
Apr 21 09:53:37 kvm [<ffffffff8028a5ef>] ? sys_ioctl+0x3c/0x61
Apr 21 09:53:37 kvm [<ffffffff8020b09b>] ? 
system_call_after_swapgs+0x7b/0x80
Apr 21 09:53:37 kvm
Apr 21 09:53:37 kvm
Apr 21 09:53:37 kvm Code: 02 74 20 77 06 ff c8 74 0e eb 78 83 f8 04 74 
20 83 f8 08 74 27 eb 6c 48 8b 51 40 48 8b 41 30 88 02 eb 60 48 8b 51 40 
48 8b 41 30 <66> 89 02 eb 53 48 8b 41 40 8b 49 30 48 89 08 eb 47 48 8b 51 40
Apr 21 09:53:37 kvm RIP  [<ffffffff88029c85>] 
:kvm:x86_emulate_insn+0x3a47/0x468f
Apr 21 09:53:37 kvm RSP <ffff81011e3e5738>
Apr 21 09:53:37 kvm CR2: 0000000000000000
Apr 21 09:53:37 kvm ---[ end trace 8b01d2fbd0fdd57f ]---


-- 
Tomas Rusnak


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