Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.
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 1199039

Summary: with -object memory-backend-ram and -sandbox on, the guest will fail
Product: Red Hat Enterprise Linux 7 Reporter: Yanhui Ma <yama>
Component: qemu-kvm-rhevAssignee: Amit Shah <amit.shah>
Status: CLOSED ERRATA QA Contact: Virtualization Bugs <virt-bugs>
Severity: high Docs Contact:
Priority: high    
Version: 7.2CC: hhuang, juzhang, lmiksik, michen, mrezanin, virt-maint, xfu
Target Milestone: rcKeywords: Regression
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: qemu-2.3 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2015-12-04 16:31:32 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Yanhui Ma 2015-03-05 11:27:36 UTC 
Description of problem:
When I append -object memory-backend-ram and -sandbox on together, guest will fail.

Version-Release number of selected component (if applicable):

qemu-kvm-rhev-2.2.0-5.el7.x86_64
3.10.0-229.el7.x86_64

How reproducible:


Steps to Reproduce:
1.boot a guest with -object memory-backend-ram and -sandbox on together
/usr/libexec/qemu-kvm -M pc-i440fx-rhel7.1.0 -m 4G 
-cpu Opteron_G3,hv_relaxed,hv_vapic,hv_spinlocks=0x1fff,hv_time -smp 4,sockets=2,cores=2,threads=1 
-monitor stdio -vga std -vnc :2 
-device virtio-scsi-pci,id=scsi1,bus=pci.0,addr=0x7 -drive file=/home/win_server_2012r2_x64.qcow2,if=none,id=drive-data-disk1,cache=none,format=qcow2,aio=threads,werror=stop,rerror=stop -device scsi-hd,drive=drive-data-disk1,bus=scsi1.0,id=data-disk1,bootindex=0 
-device virtio-scsi-pci,bus=pci.0,addr=0xc,id=scsi2 -drive file=/home/data-disk-test.qcow2,if=none,id=drive-scsi2-0-0,media=disk,cache=none,format=qcow2,werror=stop,rerror=stop,aio=threads -device scsi-hd,drive=drive-scsi2-0-0,bus=scsi2.0,scsi-id=0,lun=0,id=yama2 -netdev tap,id=hostnet0,vhost=on,script=/etc/qemu-ifup -device e1000,netdev=hostnet0,id=virtio-net-pci0,mac=00:24:21:7f:b6:11,bus=pci.0,addr=0x9 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 
-global PIIX4_PM.disable_s3=0 -global PIIX4_PM.disable_s4=0 
-object memory-backend-ram,host-nodes=0,id=mem-0,policy=bind,prealloc=yes,size=2G -numa node,nodeid=0,memdev=mem-0 -object memory-backend-ram,host-nodes=0,id=mem-1,policy=bind,prealloc=yes,size=2G -numa node,nodeid=1,memdev=mem-1 
-sandbox on -usb -device usb-tablet,id=input0 -device usb-host,hostbus=002,hostaddr=005,id=hostdev0
2.
3.

Actual results:
Guest cann't boot. print the "Bad system call"

Expected results:
Guest boot successfully

Additional info:
Comment 2 FuXiangChun 2015-03-05 14:35:48 UTC 
As qemu-kvm-rhev-2.1.2-23.el7.x86_64 didn't hit this issue and this bug is fixed by bug 1172473.  So this is a regression bug.
Comment 5 Lin Chen 2015-06-23 07:20:27 UTC 
reproduce:
host kernel:3.10.0-267.el7.x86_64
host qemu:  qemu-kvm-rhev-2.2.0-8.el7.x86_64

QE retested this bug on the above environment,then got the same result.
So, the bug is reproduced on the above environment.


verify:
host kernel:3.10.0-267.el7.x86_64
host qemu:  qemu-kvm-rhev-2.3.0-4.el7.x86_64

QE retested this bug on the above environment. Appended -object memory-backend-ram and -sandbox on together, guest boot successfully.
So, the bug fixed.
Comment 9 errata-xmlrpc 2015-12-04 16:31:32 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-2546.html