Re: 3.18.11 - RBD triggered deadlock?

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On Sat, Apr 25, 2015 at 9:56 AM, Nikola Ciprich
<nikola.ciprich@xxxxxxxxxxx> wrote:
>>
>> It seems you just grepped for ceph-osd - that doesn't include sockets
>> opened by the kernel client, which is what I was after.  Paste the
>> entire netstat?
> ouch, bummer!  here are full netstats, sorry about delay..
>
> http://nik.lbox.cz/download/ceph/
>
> BR

tcp        0      0 10.0.0.1:6809               10.0.0.1:59692
ESTABLISHED 20182/ceph-osd
tcp        0 4163543 10.0.0.1:59692              10.0.0.1:6809 ESTABLISHED -

You got bitten by a recently fixed regression.  It's never been a good
idea to co-locate kernel client with osds, and we advise not to do it.
However it happens to work most of the time so you can do it if you
really want to.  That "happens to work" part got accidentally broken in
3.18 and was fixed in 4.0, 3.19.5 and 3.18.12.

You are running 3.18.11, so you are going to need to upgrade.

Thanks,

                Ilya
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