Bug#827412: multipath-tools: /dev/mapper device files not removed when partition is removed

[Ritesh Raj Sarraf]

Control: tag -1 +moreinfo

I was thinking about this bug again, and I think the bug must be elsewhere.

Andrew: Are you able to consistently reproduce this bug on multiple setups ?


The reason I think this bug may not be valid is for 2 reasons:

1) If the bug was valid, it should have been reproducible in my virtual setup.

2) More than 1, the patch being proposed should not be needed. Because even
though a partition has an UUID with string "partN-mpath-*" the parent device is
still owning the UUID with string "mpath-*". When the device is deleted, the
event will be generated for the device itself. Which, should be able to catch
the string regex of the latter I've exampled above. This is what is happening in
my virtual setup.


If 2 is correct, why has the OP seen the issue?
We need confirmation if the issue was seen consistently on multiple setups. If
so, are there other components that may be silently locking the device ?



On Mon, 2016-06-20 at 14:01 +0530, Ritesh Raj Sarraf wrote:
> Surprisingly, I am not able to reproduce this bug, now, on my virtual setup.
> Here, the updation to /dev/mapper/ entries are instant as and when partitions
> are deleted, without the patch proposed in this bug report.
> 
> So inclusion of this patch will depend on the bug reporter's results. We also
> need to determine the cause of the bug because it is not just reproducible
> with
> in a partitioned block device environment.
> 
-- 
Ritesh Raj Sarraf | http://people.debian.org/~rrs
Debian - The Universal Operating System
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