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the product is no longer active in Red Hat Bugzilla.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.
Description of problem:
qemu-kvm hang when boot with usb-host and sandbox was enabled
Version-Release number of selected component (if applicable):
Host:
qemu-kvm-1.5.3-86.el7.x86_64
3.10.0-225.el7.x86_64
How reproducible:
always
Steps to Reproduce:
1.Start qemu-kvm with following command line:
/usr/libexec/qemu-kvm -M pc -monitor stdio -vnc :0 -sandbox on -usb -device usb-host,id=hostdev0
2.
3.
Actual results:
qemu-kvm hang.
[root@dhcp-11-16 ~]# ps ax |grep qemu
12383 pts/3 Zl+ 0:00 [qemu-kvm] <defunct>
12402 pts/2 S+ 0:00 grep --color=auto qemu
Expected results:
qemu-kvm works well.
Additional info:
qemu-kvm-rhev-2.1.2-20.el7.x86_64 can't hit this problem.
Following command line also hit qemu-kvm hang.
qemu-kvm-1.5.3-60.el7.x86_64
Start qemu-kvm with sandbos enabled, then query usbhost in hmp.
/usr/libexec/qemu-kvm -M pc -monitor stdio -vnc :0 -sandbox on
(qemu) info usbhost
[root@dhcp-8-204 ~]# ps ax |grep qemu
16703 pts/0 Zl+ 0:03 [qemu-kvm] <defunct>
16744 pts/1 S+ 0:00 grep --color=auto qemu
Reproduce this bug on qemu-kvm-1.5.3-86.el7
Host:
qemu-kvm-1.5.3-86.el7
3.10.0-287.el7.x86_64
Steps:
1. Start qemu-kvm with sandbos enabled, then query usbhost in hmp.
# /usr/libexec/qemu-kvm -M pc -monitor stdio -vnc :0 -sandbox on -usb -device usb-host,id=hostdev0
Result:
qemu-kvm hang.
# ps ax |grep qemu
1123 pts/0 Zl+ 0:00 [qemu-kvm] <defunct>
1129 pts/1 S+ 0:00 grep --color=auto qemu
Verify this bug on qemu-kvm-1.5.3-92.el7
# /usr/libexec/qemu-kvm -M pc -monitor stdio -vnc :0 -sandbox on -usb -device usb-host,id=hostdev0
QEMU 1.5.3 monitor - type 'help' for more information
(qemu) info usbhost
Bus 1, Addr 3, Port 1.1, Speed 12 Mb/s
Class 00: USB device 0624:0013, AVOCENT K/M
Bus 1, Addr 4, Port 1.2, Speed 12 Mb/s
Class 00: USB device 0624:0815, AVO VMC-USB MPUIQ
(qemu) info status
VM status: running
# ps ax |grep qemu
1186 pts/0 Sl+ 0:13 /usr/libexec/qemu-kvm -M pc -monitor stdio -vnc :0 -sandbox on -usb -device usb-host,id=hostdev0
1195 pts/1 S+ 0:00 grep --color=auto qemu
qemu-kvm works well, this bug has been fixed.
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-2015-2213.html