Bug#859157: multipath-tools: after bootup multipathd timeout on commands - requires daemon restart

[Ritesh Raj Sarraf]

On Fri, 2017-03-31 at 17:33 +0200, Alban Browaeys wrote:
> Has this boxes been rebooted in between ?

Sorry, I missed the 2nd part of your email. To answer your question, Yes. I
double checked it.


> The broken commit "fix INIT_REQUESTED_UDEV code" was in 0.6.4 http://gi
> t.opensvc.com/gitweb.cgi?p=multipath-
> tools/.git;a=shortlog;h=refs/tags/0.6.4 upstream but not in 0.6.3 http:
> //git.opensvc.com/gitweb.cgi?p=multipath-
> tools/.git;a=shortlog;h=refs/tags/0.6.3 .
> The deadlock only shows up at boot. Only then udev triggers the add
> events for the devices. It might be that this code path is only
> triggered by virtual devices 
> (if without the fix I boot I get a deadlock of multipathd but it I kill
> and start multipathd /dev/sda and /dev/sdb are availables -- but
> bcache0 virtual device only do so with a fixed multipathd started at
> boot.
> Likely when I kill and restart multipathd , no add udev events
> triggers)

The block devices are generated independent of the multipathd daemon.

-- 
Ritesh Raj Sarraf | http://people.debian.org/~rrs
Debian - The Universal Operating System
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