RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Bug 1134700 - Host call trace when booting L2 guest on wildcatpass Haswell machine
Summary: Host call trace when booting L2 guest on wildcatpass Haswell machine
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: qemu-kvm-rhev
Version: 7.1
Hardware: x86_64
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Bandan Das
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-08-28 07:05 UTC by FuXiangChun
Modified: 2019-03-22 12:29 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-07-13 04:16:35 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description FuXiangChun 2014-08-28 07:05:11 UTC 
Description of problem:
For wildcatpass host, host call trace when booting L2 guest. and guest show black screen.  

Version-Release number of selected component (if applicable):
host and guest kernel version:
3.10.0-145.el7.x86_64

qemu-kvm-rhev version:
qemu-kvm-rhev-2.1.0-2.el7.x86_64
qemu-kvm-1.5.3-69.el7.x86_64

How reproducible:
100%


Steps to Reproduce:
1. Enable nested virt on wildcatpass host
# cat /sys/module/kvm_intel/parameters/nested
Y
# cat /sys/module/kvm_intel/parameters/enable_shadow_vmcs
Y
# cat /sys/module/kvm_intel/parameters/ept
Y
# cat /sys/module/kvm_intel/parameters/enable_apicv
Y

2.Boot RHEL7.0 L1 guest on host with '-cpu host'

/usr/libexec/qemu-kvm -M pc-i440fx-rhel7.0.0 -cpu host -name RHEL-Server-7.0-64 -m 8G -smp 8,cores=2,threads=2,maxcpus=160 -nodefconfig -spice port=5903,disable-ticketing -drive file=/home/rhel7.qcow2,if=none,id=drive-virtio-disk,format=qcow2,cache=none,aio=native,werror=stop,rerror=stop,media=disk,snapshot=off,bus=1,unit=1 -device virtio-blk-pci,scsi=on,drive=drive-virtio-disk,id=virtio-disk,bus=pci.0,addr=0x7,bootindex=1,physical_block_size=512,logical_block_size=512 -monitor stdio -netdev tap,id=hostnet0,vhost=on,script=/etc/qemu-ifup,downscript=no,ifname=chenlin -device virtio-net-pci,mq=on,netdev=hostnet0,id=virtio-net-pci0,mac=00:01:02:03:04:07,bus=pci.0,addr=0x9,multifunction=on,status=on,gso=on,ioeventfd=on,vectors=8,indirect_desc=off,event_idx=off,guest_tso4=off,guest_tso6=on,guest_ecn=off,guest_ufo=on,host_tso4=off,host_tso6=on,host_ecn=on,mrg_rxbuf=off,ctrl_vq=on,host_ufo=on,mrg_rxbuf=on,ctrl_rx=on,ctrl_vlan=on,ctrl_rx_extra=on,ctrl_mac_addr=on -balloon virtio,id=bl1 -vga qxl -qmp tcp:0:4445,server,nowait

3.Boot L2 RHEL7.0 guest on L1 with Haswell

/usr/libexec/qemu-kvm -M pc-i440fx-rhel7.0.0 -name RHEL-Server-7.0-64 -m 4G -smp 1,cores=1,threads=1,maxcpus=160 -nodefconfig -spice port=5903,disable-ticketing -drive file=/home/rhel7.qcow2-guest,if=none,id=drive-virtio-disk,format=qcow2,cache=none,aio=native,werror=stop,rerror=stop,media=disk,snapshot=off,bus=1,unit=1 -device virtio-blk-pci,scsi=on,drive=drive-virtio-disk,id=virtio-disk,bus=pci.0,addr=0x7,bootindex=1,physical_block_size=512,logical_block_size=512 -monitor stdio  -balloon virtio,id=bl1 -vga qxl -qmp tcp:0:4445,server,nowait

Actual results:
Host call trace

[ 6945.191942] WARNING: at arch/x86/kvm/vmx.c:8686 nested_vmx_vmexit+0x282/0x290 [kvm_intel]()
[ 6945.191953] Modules linked in: vhost_net macvtap macvlan tun kvm_intel kvm sg bridge stp llc intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel ixgbe ptp aesni_intel pps_core lrw iTCO_wdt mdio gf128mul glue_helper iTCO_vendor_support dca ablk_helper mei_me lpc_ich cryptd pcspkr i2c_i801 mfd_core mei shpchp wmi ipmi_si ipmi_msghandler acpi_pad acpi_power_meter mperf xfs libcrc32c sd_mod sr_mod cdrom crc_t10dif crct10dif_common mgag200 syscopyarea sysfillrect sysimgblt i2c_algo_bit drm_kms_helper ahci ttm libahci drm libata i2c_core dm_mirror dm_region_hash dm_log dm_mod [last unloaded: kvm]
[ 6945.191954] CPU: 14 PID: 4093 Comm: qemu-kvm Tainted: G        W   --------------   3.10.0-145.el7.x86_64 #1
[ 6945.191955] Hardware name: Intel Corporation S2600WTT/S2600WTT, BIOS GRNDSDP1.86B.0037.D10.1408060946 08/06/2014
[ 6945.191958]  0000000000000000 000000004c295ac9 ffff88038f5a9c60 ffffffff815eb72b
[ 6945.191960]  ffff88038f5a9c98 ffffffff8106a6c1 ffff88085eb90000 ffff8802e6b67000
[ 6945.191962]  0000000000000001 ffff880466ef0000 ffff88085eb90030 ffff88038f5a9ca8
[ 6945.191962] Call Trace:
[ 6945.191965]  [<ffffffff815eb72b>] dump_stack+0x19/0x1b
[ 6945.191967]  [<ffffffff8106a6c1>] warn_slowpath_common+0x61/0x80
[ 6945.191968]  [<ffffffff8106a7ea>] warn_slowpath_null+0x1a/0x20
[ 6945.191970]  [<ffffffffa046ddb2>] nested_vmx_vmexit+0x282/0x290 [kvm_intel]
[ 6945.191972]  [<ffffffffa0465e48>] ? vmx_sync_pir_to_irr+0x28/0x30 [kvm_intel]
[ 6945.191974]  [<ffffffffa046dec0>] vmx_check_nested_events+0x100/0x120 [kvm_intel]
[ 6945.191981]  [<ffffffffa04e8d2f>] vcpu_enter_guest+0x42f/0xd50 [kvm]
[ 6945.191983]  [<ffffffffa0469d6b>] ? vmx_deliver_posted_interrupt+0x3b/0x80 [kvm_intel]
[ 6945.191989]  [<ffffffffa0508722>] ? __apic_accept_irq+0x162/0x2b0 [kvm]
[ 6945.191994]  [<ffffffffa04ee848>] kvm_arch_vcpu_ioctl_run+0x208/0x480 [kvm]
[ 6945.191998]  [<ffffffffa04d8e3a>] kvm_vcpu_ioctl+0x2aa/0x580 [kvm]
[ 6945.192000]  [<ffffffff812015d1>] ? fsnotify+0x251/0x350
[ 6945.192002]  [<ffffffff811d2765>] do_vfs_ioctl+0x2e5/0x4c0
[ 6945.192004]  [<ffffffff812672de>] ? file_has_perm+0xae/0xc0
[ 6945.192006]  [<ffffffff811d29e1>] SyS_ioctl+0xa1/0xc0
[ 6945.192008] ---[ end trace a300483cabb64f90 ]---

2. L2 guest black screen(can not boot)


Expected results:
L2 guest boot successfully

Additional info:
QE didn't test other host. not sure if other host has the same issue.
Comment 4 FuXiangChun 2015-06-23 01:49:29 UTC 
I have reserved a wildcatpass host in beaker.  will update test result to bz asap.
Comment 5 FuXiangChun 2015-06-30 07:34:48 UTC 
I re-tested this bug with 3.10.0-229.7.2.el7.x86_64.  the bug still can be reproduced.  As I cann't connect to it after host can be updated to the latest kernel(in beaker). so I didn't update host and guest kernel to the latest kernel version.  If the kernel is not sure whether the recent kernel fixed it. please tell me.  I will reserve another host in beaker.
Comment 9 Bandan Das 2015-07-13 04:16:35 UTC 
This is no longer reproducible with recent builds, closing this as CURRENTRELEASE. Please feel free to reopen if the issue persists.
Note You need to log in before you can comment on or make changes to this bug.