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the product is no longer active in Red Hat Bugzilla.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:
While su - to usermode, the env parameter $XDG_RUNTIME_DIR is NULL，it should get the correct value automatically.
using su - and ssh two different ways to switch to user mode in two terminal,
guest status is different . the change to the guest can not be synchronized
Product Version:
kernel-3.10.0-188.el7.x86_64
qemu-kvm-rhev-2.1.2-3.el7.x86_64
libvirt-1.2.8-5.el7.x86_64
How producible:
100%
Steps:
1. root login into host ;
add a test user.
#useradd test
#pwd
/home/test
prepare a img and xml which belong to test .
# ls -al domain.xml r7new.img
-rw-r--r--. 1 test test 3281 Oct 16 11:09 domain.xml
-rw-r--r--. 1 test test 3863478272 Oct 16 11:07 r7new.img
2. in terminal 1, using ssh to switch to user mdoe:
#ssh -X test@localhost
$ virsh define domain.xml
Domain r7user defined from domain.xml
[test@184 ~]$ virsh start r7user
Domain r7user started
[test@184 ~]$ virsh list --all
Id Name State
----------------------------------------------------
2 r7user running
[test@184 ~]$ echo $XDG_RUNTIME_DIR
/run/user/1001
3. in terminal2, using su - test to switch to user mode :
[root@184 test]# su - test
to check the guest status:
[test@184 ~]$ virsh list --all
Id Name State
----------------------------------------------------
- r7user shut off
check $XDG_RUNTIME_DIR, nothing out put.
[test@184 ~]$ echo $XDG_RUNTIME_DIR
if start guest
#virsh start r7user
it will hang
ctrl + c to stop then
#virsh start r7user
error: Domain is already active
[test@184 ~]$ virsh list --all
Id Name State
----------------------------------------------------
2 r7user shut off
4. check with qemu , it has two qemu process.
[test@184 ~]$ ps -ef | grep qemu
test 9567 1 1 11:56 ? .......
test 9601 1 0 11:56 ?.......
5. set the value of $XDG_RUNTIME_DIR manually same with the one in step 2, the guest status will be sync with step 2.
[test@184 ~]$ export XDG_RUNTIME_DIR='/run/user/1001'
[test@184 ~]$ echo $XDG_RUNTIME_DIR
/run/user/1001
[test@184 ~]$ virsh list --all
Id Name State
----------------------------------------------------
2 r7user running
Actual Result:
In step 3, using su - switch to user mode , the environment parameter XDG_RUNTIME_DIR is empty. libvirt guest can not get correct status .
Expected Result:
In step 3, using su - switch to user mode , the environment parameter XDG_RUNTIME_DIR should get the cocrret value automatically. libvirt guest can get correct status.
The guest status should be synced while using ssh and su to the usermode.
additonal information:
There is one similar bug for you reference, which is verified.
https://bugzilla.redhat.com/show_bug.cgi?id=955470
Semantics of /bin/su - are very vaguely defined and doesn't mention XDG_RUNTIME_DIR explicitly. We don't leave XDG_RUNTIME_DIR set unconditionally. We undefine it when newly logged in user is not the same as the one which owns the session. If you want a full session use mechanism which will provide you one. Calling /bin/su - just doesn't cut it. Sorry. Closing as NOTABUG for now.
hi, Jiri,
libvirt is not working well while su - to usermode, it's one systemd bug. But the systemd developer closed as NOTABUG, is it ok for libvirt side? Would you please kindly have a look at this bug? Thanks in advanced.