* [Bug 73721] New: KVM hv-time
@ 2014-04-09 10:24 bugzilla-daemon
2014-04-14 14:05 ` [Bug 73721] " bugzilla-daemon
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: bugzilla-daemon @ 2014-04-09 10:24 UTC (permalink / raw)
To: kvm
https://bugzilla.kernel.org/show_bug.cgi?id=73721
Bug ID: 73721
Summary: KVM hv-time
Product: Virtualization
Version: unspecified
Kernel Version: 3.14.0
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: kvm
Assignee: virtualization_kvm@kernel-bugs.osdl.org
Reporter: anickname@gmail.com
Regression: No
Hi,
I'm trying to start a Windows 8.1 x86_64 virtual machine and the system moves
very slow. After the vm starts the log is full of :
Apr 05 21:20:51 kvm kernel: ------------[ cut here ]------------
Apr 05 21:20:51 kvm kernel: WARNING: CPU: 3 PID: 1919 at
arch/x86/kvm/x86.c:1112 kvm_get_msr_common+0x793/0x960 [kvm]()
Apr 05 21:20:51 kvm kernel: Modules linked in: nls_utf8 cifs dns_resolver
fscache bridge ebt_ip stp llc ebtable_filter ebtables x_tables nct6775
hwmon_vid coretemp iTCO_wdt iTCO_vendor_
Apr 05 21:20:51 kvm kernel: raid1 md_mod sd_mod crc_t10dif atkbd libps2
crct10dif_pclmul crct10dif_common crc32_pclmul crc32c_intel ghash_clmulni_intel
aesni_intel aes_x86_64 lrw gf128
Apr 05 21:20:51 kvm kernel: CPU: 3 PID: 1919 Comm: windows_81 Tainted: G
W 3.14.0-3-mainline #2
Apr 05 21:20:51 kvm kernel: Hardware name: To Be Filled By O.E.M. To Be Filled
By O.E.M./Z77 Professional, BIOS P1.70B 11/12/2013
Apr 05 21:20:51 kvm kernel: 0000000000000009 ffff8808007f9c10 ffffffff814d563c
0000000000000000
Apr 05 21:20:51 kvm kernel: ffff8808007f9c48 ffffffff81064f1d 0000000040000020
ffff8808007f9cd8
Apr 05 21:20:51 kvm kernel: ffff880800b53ec0 ffff8808011b0000 ffff8808011b0040
ffff8808007f9c58
Apr 05 21:20:51 kvm kernel: Call Trace:
Apr 05 21:20:51 kvm kernel: [<ffffffff814d563c>] dump_stack+0x4d/0x6f
Apr 05 21:20:51 kvm kernel: [<ffffffff81064f1d>]
warn_slowpath_common+0x7d/0xa0
Apr 05 21:20:51 kvm kernel: [<ffffffff81064ffa>] warn_slowpath_null+0x1a/0x20
Apr 05 21:20:51 kvm kernel: [<ffffffffa0101433>]
kvm_get_msr_common+0x793/0x960 [kvm]
Apr 05 21:20:51 kvm kernel: [<ffffffffa02ef012>] vmx_get_msr+0x102/0x370
[kvm_intel]
Apr 05 21:20:51 kvm kernel: [<ffffffffa02ecfe8>] ?
skip_emulated_instruction+0x58/0x60 [kvm_intel]
Apr 05 21:20:51 kvm kernel: [<ffffffffa02ef2aa>] handle_rdmsr+0x2a/0x140
[kvm_intel]
Apr 05 21:20:51 kvm kernel: [<ffffffffa02f48b5>] vmx_handle_exit+0xb5/0xa20
[kvm_intel]
Apr 05 21:20:51 kvm kernel: [<ffffffffa02ec360>] ?
vmx_invpcid_supported+0x20/0x20 [kvm_intel]
Apr 05 21:20:51 kvm kernel: [<ffffffffa0106b20>]
kvm_arch_vcpu_ioctl_run+0xc10/0x1130 [kvm]
Apr 05 21:20:51 kvm kernel: [<ffffffffa010283e>] ?
kvm_arch_vcpu_load+0x4e/0x1e0 [kvm]
Apr 05 21:20:51 kvm kernel: [<ffffffffa00ef5c2>] kvm_vcpu_ioctl+0x2b2/0x5b0
[kvm]
Apr 05 21:20:51 kvm kernel: [<ffffffff811e4ab8>] ? fsnotify+0x228/0x2f0
Apr 05 21:20:51 kvm kernel: [<ffffffff814dabe5>] ?
_raw_spin_unlock_irq+0x25/0x30
Apr 05 21:20:51 kvm kernel: [<ffffffff811b6180>] do_vfs_ioctl+0x2e0/0x4c0
Apr 05 21:20:51 kvm kernel: [<ffffffff811bff9e>] ? __fget+0x6e/0xb0
Apr 05 21:20:51 kvm kernel: [<ffffffff811b63e1>] SyS_ioctl+0x81/0xa0
Apr 05 21:20:51 kvm kernel: [<ffffffff814e3069>]
system_call_fastpath+0x16/0x1b
Apr 05 21:20:51 kvm kernel: ---[ end trace 4ce12a32c5d85c78 ]---
Apr 05 21:20:51 kvm kernel: ------------[ cut here ]------------
I'm using kernel 3.14.0 and qemu-git.
This happens only when qemu is started with "hv-time" suboption.
Same command line with "hv-time" worked without any problems with kernel
3.13.6.
My config is :
qemu-system-x86_64 \
-daemonize \
-pidfile "/run/qemu-$VM.pid" \
-nodefconfig -nodefaults \
-name "$VM",process="$VM" \
-enable-kvm \
-boot menu=on \
-rtc base=localtime \
-machine q35 \
-balloon none \
-m 8192 -mem-path /dev/hugepages -mem-prealloc \
-cpu Haswell,hv-time \
-smp sockets=1,cores=4,threads=1 \
-bios bios-256k.bin \
-chardev file,path="$VM-seabios.log",id=seabios -device
isa-debugcon,iobase=0x402,chardev=seabios \
-vga none \
-nographic \
-monitor unix:/run/qemu-$VM.monitor,server,nowait \
-serial none \
-parallel none \
-device
ioh3420,bus=pcie.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1 \
-device
vfio-pci,host=01:00.0,bus=root.1,addr=00.0,multifunction=on,x-vga=on,romfile=$KVM_ROOT/roms/Sapphire_RadeonHD_7790.rom
\
-device vfio-pci,host=00:1b.0,bus=pcie.0 \
-device vfio-pci,host=06:00.0,bus=pcie.0 \
-device vfio-pci,host=09:00.0,bus=pcie.0 \
-device vfio-pci,host=0b:00.0,bus=pcie.0
Thanks.
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* [Bug 73721] KVM hv-time
2014-04-09 10:24 [Bug 73721] New: KVM hv-time bugzilla-daemon
@ 2014-04-14 14:05 ` bugzilla-daemon
2014-04-14 14:45 ` bugzilla-daemon
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon @ 2014-04-14 14:05 UTC (permalink / raw)
To: kvm
https://bugzilla.kernel.org/show_bug.cgi?id=73721
--- Comment #1 from flyser42@gmx.de ---
I can confirm the problem. It happens on my gentoo system as well. Let me know,
if you want me to create debug logs or similar.
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* [Bug 73721] KVM hv-time
2014-04-09 10:24 [Bug 73721] New: KVM hv-time bugzilla-daemon
2014-04-14 14:05 ` [Bug 73721] " bugzilla-daemon
@ 2014-04-14 14:45 ` bugzilla-daemon
2014-05-07 16:15 ` bugzilla-daemon
2014-05-08 8:05 ` bugzilla-daemon
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon @ 2014-04-14 14:45 UTC (permalink / raw)
To: kvm
https://bugzilla.kernel.org/show_bug.cgi?id=73721
Rasmus Eskola <fruitiex@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |fruitiex@gmail.com
--- Comment #2 from Rasmus Eskola <fruitiex@gmail.com> ---
I can also confirm this on my Arch Linux system. Near bare-metal performance on
3.13 kernel with hv-time, but getting these error messages in dmesg on 3.14.
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* [Bug 73721] KVM hv-time
2014-04-09 10:24 [Bug 73721] New: KVM hv-time bugzilla-daemon
2014-04-14 14:05 ` [Bug 73721] " bugzilla-daemon
2014-04-14 14:45 ` bugzilla-daemon
@ 2014-05-07 16:15 ` bugzilla-daemon
2014-05-08 8:05 ` bugzilla-daemon
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon @ 2014-05-07 16:15 UTC (permalink / raw)
To: kvm
https://bugzilla.kernel.org/show_bug.cgi?id=73721
Paolo Bonzini <bonzini@gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |bonzini@gnu.org
Resolution|--- |CODE_FIX
--- Comment #3 from Paolo Bonzini <bonzini@gnu.org> ---
Already fixed by commit b351c39cc9e0151cee9b8d52a1e714928faabb38, but Marcelo
forgot to CC stable. I'll propose the patch myself.
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* [Bug 73721] KVM hv-time
2014-04-09 10:24 [Bug 73721] New: KVM hv-time bugzilla-daemon
` (2 preceding siblings ...)
2014-05-07 16:15 ` bugzilla-daemon
@ 2014-05-08 8:05 ` bugzilla-daemon
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon @ 2014-05-08 8:05 UTC (permalink / raw)
To: kvm
https://bugzilla.kernel.org/show_bug.cgi?id=73721
--- Comment #4 from Marcus Schmidt <anickname@gmail.com> ---
Thanks, now everything works good.
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