Whilst the symptoms are clearly demonstrated, the root cause has not
been trianged.
This may still be a regression in the kernel & userspace stacks, or not.
It is not clear, how this can be bisected. All Ubuntu releases have been
so far affected and internally we do not have access to this many
d
Hi Frank,
do you think a test like [1] would help?
It is not (z)FCP, but you could at least throw a nearly unlimited amount of
disks at multipath and check if it is an issue.
[1]: https://git.launchpad.net/ubuntu/+source/multipath-
tools/tree/debian/tests/tgtbasedmpaths?h=applied/ubuntu/devel
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** Changed in: multipath-tools (Ubuntu)
Status: Incomplete => Fix Released
** Changed in: ubuntu-z-systems
Status: Incomplete => Fix Released
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Many thx Thorsten!
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Title:
The created partitions can be seen in the system only partly when
partitioning 256 FCP devices with multipathing
To
** Changed in: multipath-tools (Ubuntu)
Assignee: Skipper Bug Screeners (skipper-screen-team) => (unassigned)
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Title:
The created partitions
** Changed in: multipath-tools (Ubuntu)
Status: New => Incomplete
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Title:
The created partitions can be seen in the system only partly whe
** Changed in: ubuntu-z-systems
Status: Triaged => Fix Released
** Changed in: multipath-tools (Ubuntu)
Status: New => Fix Released
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** Changed in: ubuntu-z-systems
Status: Fix Released => Triaged
** Changed in: multipath-tools (Ubuntu)
Status: Fix Released => New
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** Changed in: ubuntu-z-systems
Status: Triaged => Incomplete
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Title:
The created partitions can be seen in the system only partly when
** Changed in: ubuntu-z-systems
Status: New => Triaged
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Title:
The created partitions can be seen in the system only partly when
partiti
--- Comment From heinz-werner_se...@de.ibm.com 2016-12-13 09:29 EDT---
New Target 17.04...after discussion with Canonical
** Tags removed: targetmilestone-inin16041
** Tags added: targetmilestone-inin1704
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hws, there is no work done on this ticket, and there is no target nor
priority for this issue to be resolved for 17.04. The request in
question is most likely an upstream bug deeper in the stack e.g. either
kernel, or multipath tools, or combination of thereof. I do hope it is
architecture independ
We have experienced races in bringing up devices and partitions before.
During work on automated preseed I'm not convinced that using echo into
/sys/bus/ccw is sufficient race-free action. Have you considered to
tweak the script to use chzdev tooling? instead of echoing things in
sysfs and/or usin
** Tags removed: targetmilestone-inin1604
** Tags added: targetmilestone-inin16041
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Title:
The created partitions can be seen in the system only
** Also affects: ubuntu-z-systems
Importance: Undecided
Status: New
** Changed in: ubuntu-z-systems
Importance: Undecided => Medium
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** Package changed: ubuntu => multipath-tools (Ubuntu)
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Title:
The created partitions can be seen in the system only partly when
partitioning 2
When things hang-up, are there any errors in dmesg? E.g. udev missing
events, and/or kernel failing to re-read partition tables? If fdisk
claims to have created the partition, yet kernel has no knowledge the
previously mentioned conditions may have occurred. Also do the "created
by fdisk yet missin
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