From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 71521] New: Host call trace when create guest.
Date: Wed, 05 Mar 2014 02:56:25 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=71521
Bug ID: 71521
Summary: Host call trace when create guest.
Product: Virtualization
Version: unspecified
Kernel Version: 3.14.0-rc1
Hardware: x86-64
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 128051
--> https://bugzilla.kernel.org/attachment.cgi?id=128051&action=edit
host-dmesg
Environment:
------------
Host OS (ia32/ia32e/IA64):ia32e
Guest OS (ia32/ia32e/IA64):ia32e
Guest OS Type (Linux/Windows):Linux
kvm.git Commit:d3714010c307d26df251c45be9cd12ab6d41f0c4
qemu-kvm Commit:9fbee91a131a05e443d7108d7fbdf3ca91020290
Host Kernel Version:3.14.0-rc1
Hardware:Romley_EP, Ivytown_EP
Bug detailed description:
--------------------------
after create guest, the host will call trace
Reproduce steps:
----------------
1. create guest
qemu-system-x86_64 -enable-kvm -m 1024 -smp 2 -net none /root/rhel6u4.qcow
Current result:
----------------
host call trace
Expected result:
----------------
guest and host work fine
Basic root-causing log:
----------------------
vmwrite error: reg 2812 value 0 (err 12)
CPU: 2 PID: 10596 Comm: qemu-system-x86 Not tainted 3.14.0-rc1 #2
Hardware name: Intel Corporation S2600CP/S2600CP, BIOS
SE5C600.86B.02.01.1001.080920131108 08/09/2013
0000000000000000 ffff880234079c78 ffffffff81482475 0000000000000006
ffff880623130040 ffff880234079c88 ffffffffa02d51d2 ffff880234079c98
ffffffffa02d51ed ffff880234079cc8 ffffffffa02dd407 00000000000003c0
Call Trace:
[] dump_stack+0x49/0x5c
[] vmwrite_error+0x27/0x29 [kvm_intel]
[] vmcs_writel+0x19/0x1b [kvm_intel]
[] vmx_set_msr+0x10b/0x26e [kvm_intel]
[] do_set_msr+0x27/0x29 [kvm]
[] msr_io+0xa0/0x101 [kvm]
[] ? kvm_set_msr+0x13/0x13 [kvm]
[] kvm_arch_vcpu_ioctl+0x37e/0xb7b [kvm]
[] ? update_cr8_intercept+0x1b/0x1d [kvm_intel]
[] ? update_cr8_intercept+0x65/0x6a [kvm]
[] ? kvm_arch_vcpu_ioctl_set_sregs+0x38b/0x407 [kvm]
[] ? kvm_vcpu_ioctl+0x25c/0x4b5 [kvm]
[] ? kvm_arch_vcpu_load+0xa5/0x16c [kvm]
[] kvm_vcpu_ioctl+0x43e/0x4b5 [kvm]
[] ? do_brk+0x265/0x2bc
[] do_vfs_ioctl+0x2a2/0x2be
[] ? __fget_light+0x4a/0x5c
[] SyS_ioctl+0x59/0x7d
[] system_call_fastpath+0x16/0x1b
more tests:
kernel version:3.14.0-rc1
kvm.git + qemu.git =result
d3714010 + 732c66ce =pass
d3714010 + 9fbee91a =fail
kernel version:3.13.-rc2
kvm.git + qemu.git =result
7650b687 + 732c66ce = pass
7650b687 + 9fbee91a = pass
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