attached is kvm crash log with a kernel BUG at /usr/src/modules/kvm/mmu.c:307!

attached is kvm crash log with a kernel BUG at /usr/src/modules/kvm/mmu.c:307!

[Walter Lundby]

[-- Attachment #1: Type: text/plain, Size: 3695 bytes --]

kernel BUG at /usr/src/modules/kvm/mmu.c:307!
invalid opcode: 0000 [1] SMP
CPU 1

Problem is not there if running without mod probes on KVM and KVM_AMD

This happens after adding Microsoft Service Pack 4 to a Win2k install.
Package was running -no-acpi
Reproducible.
-win2k-hack makes no difference

It doesn't happen with earlier versions of win2k except when it was 
installing the new KDE packages of windows on a pristine win2k service 
pack 2 install.

Kvm works fine on other OS's except it does crash with the OS used for 
Norton Ghost on e-machines XP image restore.    It worked ok for image 
restore running on freedos.

The same images run fine in a pure qemu mode.

OS is debian testing
kernel is: Linux miro 2.6.24-rc5 #1 SMP Wed Dec 26 00:53:14 CST 2007 
x86_64 GNU/Linux
 cat /proc/cpuinfo
processor    : 0
vendor_id    : AuthenticAMD
cpu family    : 15
model        : 75
model name    : AMD Athlon(tm) 64 X2 Dual Core Processor 3800+
stepping    : 2
cpu MHz        : 2009.246
cache size    : 512 KB
physical id    : 0
siblings    : 2
core id        : 0
cpu cores    : 2
fpu        : yes
fpu_exception    : yes
cpuid level    : 1
wp        : yes
flags        : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca 
cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt 
rdtscp lm 3dnowext 3dnow rep_good pni cx16 lahf_lm cmp_legacy svm 
extapic cr8_legacy
bogomips    : 4021.07
TLB size    : 1024 4K pages
clflush size    : 64
cache_alignment    : 64
address sizes    : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp tm stc

processor    : 1
vendor_id    : AuthenticAMD
cpu family    : 15
model        : 75
model name    : AMD Athlon(tm) 64 X2 Dual Core Processor 3800+
stepping    : 2
cpu MHz        : 2009.246
cache size    : 512 KB
physical id    : 0
siblings    : 2
core id        : 1
cpu cores    : 2
fpu        : yes
fpu_exception    : yes
cpuid level    : 1
wp        : yes
flags        : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca 
cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt 
rdtscp lm 3dnowext 3dnow rep_good pni cx16 lahf_lm cmp_legacy svm 
extapic cr8_legacy
bogomips    : 4018.93
TLB size    : 1024 4K pages
clflush size    : 64
cache_alignment    : 64
address sizes    : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp tm stc
 df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/mapper/miro-root
                       1368927    678698    619861  53% /
tmpfs                   997808         0    997808   0% /lib/init/rw
udev                     10240       112     10128   2% /dev
tmpfs                   997808         0    997808   0% /dev/shm
/dev/sda1               241116    111562    117106  49% /boot
/dev/mapper/miro-home2
                     309313552  71451664 222149632  25% /home
/dev/mapper/miro-tmp    388741     10319    358352   3% /tmp
/dev/mapper/miro-usr  44044120  14213296  27600220  34% /usr
/dev/mapper/miro-var  11820976   2117964   9103264  19% /var

KVM version:/sbin/modinfo kvm
filename:       /lib/modules/2.6.24-rc5/misc/kvm.ko
license:        GPL
author:         Qumranet
version:        kvm-48
srcversion:     63B0F92A3F1152C05FE5A8F
depends:       
vermagic:       2.6.24-rc5 SMP mod_unload

/sbin/modinfo kvm_amd
filename:       /lib/modules/2.6.24-rc5/misc/kvm-amd.ko
license:        GPL
author:         Qumranet
version:        kvm-48
srcversion:     22F744921D178E88E9B84A7
depends:        kvm
vermagic:       2.6.24-rc5 SMP mod_unload

host arch: x86_64
guest that crashed:  win2k srv pack 4
start cmd line:  kvm -hda /home/watermod/KVM/win2k_srvpk4_.img -m 512 
-no-acpi

no-kvm - works fine.







[-- Attachment #2: kvm_crash.txt --]
[-- Type: text/plain, Size: 4663 bytes --]

Jan 23 01:35:50 miro kernel: ------------[ cut here ]------------
Jan 23 01:35:50 miro kernel: kernel BUG at /usr/src/modules/kvm/mmu.c:307!
Jan 23 01:35:50 miro kernel: invalid opcode: 0000 [1] SMP 
Jan 23 01:35:50 miro kernel: CPU 1 
Jan 23 01:35:50 miro kernel: Modules linked in: nls_iso8859_1 cifs kvm_amd kvm nvidia(P) binfmt_misc ppdev ipv6 fuse tun loop snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_emul snd_emu10k1 snd_seq_dummy snd_seq_oss snd_seq_midi snd_seq_midi_event snd_seq snd_rawmidi firmware_class snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_device snd_timer snd_page_alloc snd_util_mem snd_hwdep psmouse parport_pc parport snd pcspkr serio_raw emu10k1_gp k8temp soundcore gameport i2c_nforce2 i2c_core button evdev ext3 jbd mbcache dm_mirror dm_snapshot dm_mod sg usbhid sr_mod cdrom sd_mod sata_nv pata_amd libata r8169 scsi_mod ehci_hcd ohci_hcd thermal processor fan
Jan 23 01:35:50 miro kernel: Pid: 17315, comm: kvm Tainted: P        2.6.24-rc5 #1
Jan 23 01:35:50 miro kernel: RIP: 0010:[<ffffffff8894c43d>]  [<ffffffff8894c43d>] :kvm:mmu_memory_cache_alloc+0xd/0x2a
Jan 23 01:35:50 miro kernel: RSP: 0018:ffff81005ebad9e8  EFLAGS: 00010246
Jan 23 01:35:50 miro kernel: RAX: 0000000000000000 RBX: ffffc20004a02428 RCX: 0000000000000028
Jan 23 01:35:50 miro kernel: RDX: ffff81006eb70088 RSI: 0000000000000028 RDI: ffff81006e9e8398
Jan 23 01:35:50 miro kernel: RBP: ffff81006e9e8080 R08: 0000000000000004 R09: 0000000000000000
Jan 23 01:35:50 miro kernel: R10: 0000000003d45163 R11: ffff81003f4eac28 R12: ffff81003f4eac28
Jan 23 01:35:50 miro kernel: R13: ffff81006e9e8080 R14: ffff81003f4eac28 R15: 0000000003d45000
Jan 23 01:35:50 miro kernel: FS:  00000000ffdff000(0000) GS:ffff81007b868dc0(0000) knlGS:0000000000000000
Jan 23 01:35:50 miro kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
Jan 23 01:35:50 miro kernel: CR2: 00002b203221b000 CR3: 0000000063a55000 CR4: 00000000000006e0
Jan 23 01:35:50 miro kernel: DR0: ffffffff803ffb28 DR1: 0000000000000000 DR2: 0000000000000000
Jan 23 01:35:50 miro kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff1 DR7: 0000000000000702
Jan 23 01:35:50 miro kernel: Process kvm (pid: 17315, threadinfo ffff81005ebac000, task ffff81007a768770)
Jan 23 01:35:50 miro kernel: Stack:  0000000000003d45 ffffffff8894c4f1 0000000048cee000 0000000000000002
Jan 23 01:35:50 miro kernel:  0000000048cee043 ffffffff8894cc75 0000000000003d45 0000000000000000
Jan 23 01:35:50 miro kernel:  0000000000000000 0000000003d45000 0000000000000282 0000000000000000
Jan 23 01:35:50 miro kernel: Call Trace:
Jan 23 01:35:50 miro kernel:  [<ffffffff8894c4f1>] :kvm:rmap_add+0x89/0xeb
Jan 23 01:35:50 miro kernel:  [<ffffffff8894cc75>] :kvm:paging32_set_pte_common+0x1a0/0x1f5
Jan 23 01:35:50 miro kernel:  [<ffffffff8894cd13>] :kvm:paging32_set_pte+0x49/0x4e
Jan 23 01:35:50 miro kernel:  [<ffffffff8894d1e1>] :kvm:kvm_mmu_pte_write+0x26f/0x325
Jan 23 01:35:50 miro kernel:  [<ffffffff88948614>] :kvm:emulator_write_emulated_onepage+0x6e/0xce
Jan 23 01:35:50 miro kernel:  [<ffffffff8895143e>] :kvm:x86_emulate_insn+0x28aa/0x3e90
Jan 23 01:35:50 miro kernel:  [<ffffffff889473af>] :kvm:kvm_get_cs_db_l_bits+0x17/0x2f
Jan 23 01:35:50 miro kernel:  [<ffffffff88948b3b>] :kvm:emulate_instruction+0x19b/0x277
Jan 23 01:35:50 miro kernel:  [<ffffffff88962822>] :kvm_amd:pf_interception+0xad/0x100
Jan 23 01:35:50 miro kernel:  [<ffffffff88949535>] :kvm:kvm_vcpu_ioctl+0x371/0xf55
Jan 23 01:35:50 miro kernel:  [<ffffffff8022bdc6>] try_to_wake_up+0x247/0x258
Jan 23 01:35:50 miro kernel:  [<ffffffff80229df3>] enqueue_task+0x13/0x1e
Jan 23 01:35:50 miro kernel:  [<ffffffff8022a1aa>] __wake_up_common+0x46/0x75
Jan 23 01:35:50 miro kernel:  [<ffffffff8022b859>] __wake_up+0x38/0x4f
Jan 23 01:35:50 miro kernel:  [<ffffffff8028bb3b>] core_sys_select+0x233/0x264
Jan 23 01:35:50 miro kernel:  [<ffffffff802480c7>] getnstimeofday+0x2f/0x84
Jan 23 01:35:50 miro kernel:  [<ffffffff8024593d>] enqueue_hrtimer+0xf5/0x102
Jan 23 01:35:50 miro kernel:  [<ffffffff802460f2>] hrtimer_start+0xff/0x111
Jan 23 01:35:50 miro kernel:  [<ffffffff8028a92d>] do_ioctl+0x21/0x6b
Jan 23 01:35:50 miro kernel:  [<ffffffff8028abba>] vfs_ioctl+0x243/0x25c
Jan 23 01:35:50 miro kernel:  [<ffffffff8028ac24>] sys_ioctl+0x51/0x71
Jan 23 01:35:50 miro kernel:  [<ffffffff8020b6be>] system_call+0x7e/0x83
Jan 23 01:35:50 miro kernel: 
Jan 23 01:35:50 miro kernel: 
Jan 23 01:35:50 miro kernel: Code: 0f 0b eb fe ff c8 89 07 48 98 48 8b 54 c7 08 31 c0 fc 48 89 
Jan 23 01:35:50 miro kernel: RIP  [<ffffffff8894c43d>] :kvm:mmu_memory_cache_alloc+0xd/0x2a
Jan 23 01:35:50 miro kernel:  RSP <ffff81005ebad9e8>


[-- Attachment #3: Type: text/plain, Size: 228 bytes --]

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Re: attached is kvm crash log with a kernel BUG at /usr/src/modules/kvm/mmu.c:307!

[Joerg Roedel]

On Fri, Jan 25, 2008 at 08:14:16PM -0600, Walter Lundby wrote:
> KVM version:/sbin/modinfo kvm
> filename:       /lib/modules/2.6.24-rc5/misc/kvm.ko
> license:        GPL
> author:         Qumranet
> version:        kvm-48
> srcversion:     63B0F92A3F1152C05FE5A8F
> depends:       
> vermagic:       2.6.24-rc5 SMP mod_unload
> 
> /sbin/modinfo kvm_amd
> filename:       /lib/modules/2.6.24-rc5/misc/kvm-amd.ko
> license:        GPL
> author:         Qumranet
> version:        kvm-48
> srcversion:     22F744921D178E88E9B84A7
> depends:        kvm
> vermagic:       2.6.24-rc5 SMP mod_unload
> 
> host arch: x86_64
> guest that crashed:  win2k srv pack 4
> start cmd line:  kvm -hda /home/watermod/KVM/win2k_srvpk4_.img -m 512 
> -no-acpi
> 
> no-kvm - works fine.

KVM-48 is really old. A lot of bugs were fixed since this time. Can you
try kvm-60 and tell us if the bug is still there? In our tests kvm-60
worked fairly well on AMD.

Joerg

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Re: attached is kvm crash log with a kernel BUG at /usr/src/modules/kvm/mmu.c:307!

[Avi Kivity]

Walter Lundby wrote:
> kernel BUG at /usr/src/modules/kvm/mmu.c:307!
> invalid opcode: 0000 [1] SMP
...
> version:        kvm-48

This was fixed by kvm-49.

-- 
Any sufficiently difficult bug is indistinguishable from a feature.


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