Bug 1338755
| Summary: | qemu-kvm-rhev doesn't reload udev rules before triggering for kvm device | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Miroslav Rezanina <mrezanin> |
| Component: | qemu-kvm-rhev | Assignee: | Miroslav Rezanina <mrezanin> |
| Status: | CLOSED ERRATA | QA Contact: | Yiqian Wei <yiwei> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 7.2 | CC: | areis, chayang, huding, jen, juzhang, knoel, mrezanin, obockows, ppostler, qzhang, rbalakri, virt-bugs, virt-maint, xfu |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | All | ||
| Whiteboard: | |||
| Fixed In Version: | qemu-kvm-rhev-2.6.0-6.el7 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | 1333159 | Environment: | |
| Last Closed: | 2016-11-07 21:11:49 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: | |||
| Bug Depends On: | 1333159 | ||
| Bug Blocks: | |||
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Comment 1
Miroslav Rezanina
2016-06-15 13:08:29 UTC
Test with two version:
unfixed version: qemu-kvm-rhev-2.3.0-31.el7.x86_64
fixed version: qemu-kvm-rhev-2.6.0-25.el7.x86_64
But,got same result,would you please help check the steps?
Anything wrong, please correct it, thanks.
Test steps:
1. unload kvm module, uninstall qemu-kvm-rhev
# rmmod kvm-intel kvm
# rpm -qa | grep qemu-kvm-rhev
qemu-kvm-rhev-2.3.0-31.el7.x86_64
# yum remove qemu-kvm-rhev-2.3.0-31.el7.x86_64
2. load kvm module
# modprobe kvm_intel
# lsmod | grep kvm
kvm_intel 170125 0
kvm 543643 1 kvm_intel
irqbypass 13503 2 kvm,vfio_pci
3. check owner of /dev/kvm, it is "root.root"
# ll /dev/kvm
crw-------. 1 root root 10, 232 Sep 14 02:28 /dev/kvm
4. Install qemu-kvm-rhev
# yum install -y qemu-kvm-rhev
# rpm -qa | grep qemu-kvm-rhev
qemu-kvm-rhev-2.3.0-31.el7.x86_64
5. check owner of /dev/kvm
# ll /dev/kvm
crw-rw-rw-. 1 root kvm 10, 232 Sep 14 02:30 /dev/kvm
This is for unfixed version(qemu-kvm-rhev-2.3.0-31.el7.x86_64), after qemu-kvm-rhev be installed, the owner of /dev/kvm change to root.kvm automatically.
For fixed version, the result is same with above.
cancel needinfo of comment6. -------------------------reproduce--------------------- Test version: qemu-kvm-rhev-2.3.0-31.el7.x86_64 Test steps: 1. unload kvm module, uninstall qemu-kvm-rhev # rmmod kvm-intel kvm # rpm -qa | grep qemu-kvm-rhev qemu-kvm-rhev-2.3.0-31.el7.x86_64 # yum remove -y qemu-kvm-rhev-2.3.0-31.el7.x86_64 2. load kvm module # modprobe kvm_intel # lsmod | grep kvm kvm_intel 170125 0 kvm 543643 1 kvm_intel irqbypass 13503 2 kvm,vfio_pci 3. check owner of /dev/kvm, it is "root.root", right result. # ll /dev/kvm crw-------. 1 root root 10, 232 Sep 14 03:44 /dev/kvm 4. Install qemu-kvm-rhev while doing "udevadm trigger" # udevadm trigger; yum install -y ./qemu-* # rpm -qa | grep qemu-kvm-rhev qemu-kvm-rhev-2.3.0-31.el7.x86_64 5. check owner of /dev/kvm, it is "root.root", so hit this issue. # ll /dev/kvm crw-------. 1 root root 10, 232 Sep 14 03:45 /dev/kvm 6. uninstall qemu-kvm-rhev, then install qemu-kvm-rhev without "udevadm trigger" # yum remove -y qemu-kvm-rhev-2.3.0-31.el7.x86_64 # yum install -y ./qemu-* 7. check owner of /dev/kvm, it is "root.kvm" # ll /dev/kvm crw-rw-rw-. 1 root kvm 10, 232 Sep 14 03:52 /dev/kvm reproduce this bug successfully according the result of step 5. -------------------------verification--------------------- Test version: qemu-kvm-rhev-2.6.0-25.el7.x86_64 Test steps: same with above. 1. unload kvm module, uninstall qemu-kvm-rhev 2. load kvm module 3. check owner of /dev/kvm, it is "root.root", right result. # ll /dev/kvm crw-------. 1 root root 10, 232 Sep 14 04:17 /dev/kvm 4. Install qemu-kvm-rhev while doing "udevadm trigger" # udevadm trigger; yum install -y ./qemu-* (qemu-kvm-rhev-2.6.0-25.el7.x86_64) 5. check owner of /dev/kvm, it is "root.kvm". # ll /dev/kvm crw-rw-rw-. 1 root kvm 10, 232 Sep 14 04:17 /dev/kvm Move to VERIFIED according to the test result above. 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-2016-2673.html |