From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 72381] New: [Nested] L1 call trace when create windows 7 guest
as L2 guest.
Date: Tue, 18 Mar 2014 07:43:26 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=72381
Bug ID: 72381
Summary: [Nested] L1 call trace when create windows 7 guest as
L2 guest.
Product: Virtualization
Version: unspecified
Kernel Version: 3.14.0-rc3
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: kvm
Assignee: virtualization_kvm@kernel-bugs.osdl.org
Reporter: Robert.Hu@intel.com
Regression: No
Created attachment 129911
--> https://bugzilla.kernel.org/attachment.cgi?id=129911&action=edit
L1 serial
Environment:
------------
Host OS (ia32/ia32e/IA64):ia32e
Guest OS (ia32/ia32e/IA64):ia32e
Guest OS Type (Linux/Windows):linux
kvm.git Commit:94b3ffcd41a90d2cb0b32ca23aa58a01111d5dc0
qemu.git Commit:087edb503afebf184f07078900efc26c73035e98
Host Kernel Version:3.14.0-rc3
Hardware:Romley_EP
Bug detailed description:
--------------------------
when create a windows 7 guest as L2 guest,L2 guest boot up fail, L1 guest will
call trace. ping L1 guest pass, but ssh L1 guest fail
note:
when create a rhel6u4 guest as L2 guest, L1 guest and L2 guest work fine
Reproduce steps:
----------------
1.1.create L1 guest:
qemu-system-x86_64 -enable-kvm -m 6G -smp 4 -net nic,macaddr=00:12:52:13:46:67
-net tap,script=/etc/kvm/qemu-ifup ia32e_nested_kvm.img -cpu host,level=9
2.create L2 guest:
qemu-system-x86_64 -enable-kvm -m 1G -smp 2 -net none ia32e_win7.img
Current result:
----------------
L1 call trace
Expected result:
----------------
L1 and L2 guest boot up fine.
Basic root-causing log:
----------------------
sending NMI to all CPUs:
NMI backtrace for cpu 3
CPU: 3 PID: 4186 Comm: qemu-system-x86 Not tainted 3.12.0-rc5 #2
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
task: ffff8801b890c040 ti: ffff8801b77b8000 task.ti: ffff8801b77b8000
RIP: 0010:[] [] _raw_spin_lock+0x20/0x24
RSP: 0018:ffff8801b77b9bc8 EFLAGS: 00000293
RAX: 0000000000006e6b RBX: ffff8801b8170080 RCX: 000000000018a337
RDX: 000000000000006e RSI: 0000000000000000 RDI: ffff8801b77dc000
RBP: ffff8801b77b9bc8 R08: 0000000000000007 R09: ffff8801b77b9c20
R10: 0000000000002900 R11: 0000000000002931 R12: 0000000000000000
R13: 000000001278f000 R14: 0000000000000000 R15: 0000000000000000
FS: 00007ff63bfff700(0000) GS:ffff8801bfd80000(0000) knlGS:fffff880009e6000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffff8a0000e7000 CR3: 00000000b1e6d000 CR4: 00000000000026e0
Stack:
ffff8801b77b9c58 ffffffffa01c8cb3 ffff8801b77b9c27 0000000000000001
ffff8801b77b9bf8 00ffffffa022d1bf 0000000000001b66 00000002a01b481b
000000000001278f 000000000018a337 00000001b77b9c88 01ffffff00000000
Call Trace:
[] tdp_page_fault+0x146/0x1dc [kvm]
[] kvm_mmu_page_fault+0x22/0xc5 [kvm]
[] handle_ept_violation+0x13d/0x149 [kvm_intel]
[] vmx_handle_exit+0x171/0x193 [kvm_intel]
[] ? vmx_invpcid_supported+0x18/0x18 [kvm_intel]
[] vcpu_enter_guest+0x65a/0x696 [kvm]
[] ? __cond_resched+0x25/0x30
[] __vcpu_run+0xa5/0x262 [kvm]
[] kvm_arch_vcpu_ioctl_run+0xef/0x1ac [kvm]
[] kvm_vcpu_ioctl+0x121/0x4b1 [kvm]
[] ? futex_wake+0xeb/0xfd
[] ? ret_from_fork+0xb0/0xb0
[] do_vfs_ioctl+0x2ad/0x2c9
[] ? kvm_on_user_return+0x4f/0x51 [kvm]
[] SyS_ioctl+0x59/0x7d
[] system_call_fastpath+0x16/0x1b
Code: 07 38 d0 74 04 f3 90 eb f6 c9 c3 55 48 89 e5 b8 00 01 00 00 f0 66 0f c1
07 89 c2 66 c1 ea 08 38 c2 74 0a 8a 07 38 d0 74 04 f3 90 f6 c9 c3 55 48 89
e5 9c 58 fa ba 00 01 00 00 f0 66 0f c1 17
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