Public bug reported:
For Canonical Openstack we are currently preseeding LPARs with
bridge_role=primary setting.
This is achieved by setting the property with chzdeve e.g.:
$ chzdev --no-root-update -pVe c003 bridge_role=primary
On boot this sometimes results in generated udev rules failing to apply the
bridge_role property:
systemd-udevd[2634]: error opening ATTR{/sys/devices/qeth/0.0.c003/bridge_role}
for writing: Permission denied
The reason being, is that bridge_role attribute is attempted to written,
before it exists, as the devices have not been onlined yet into a
ccwgroup.
Updating zdev/src/qeth.c to use ordering after online and check for online only
appears to resolve above race condition, for the property in question
.order_cmp = ccw_online_only_order_cmp,
.check = ccw_online_only_check,
However looking at that file, it would appear to me that most qeth
properties should be ordered after online, as during boot they do not
exist until after the qeth is onlined.
Please reverse proxy this bug report to IBM s390-tools engineering.
Regards,
Dimitri.
** Affects: ubuntu-z-systems
Importance: Undecided
Assignee: bugproxy (bugproxy)
Status: New
** Affects: s390-tools (Ubuntu)
Importance: Undecided
Assignee: bugproxy (bugproxy)
Status: New
** Affects: s390-tools (Ubuntu Xenial)
Importance: Undecided
Status: New
** Affects: s390-tools (Ubuntu Yakkety)
Importance: Undecided
Status: New
** Tags: s390x
** Also affects: s390-tools (Ubuntu Yakkety)
Importance: Undecided
Status: New
** Also affects: s390-tools (Ubuntu Xenial)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1672650
Title:
chzdev ccwgroup qeth properties incorrect ordering with respect to
online
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