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Date:      Thu, 05 Dec 2013 20:26:12 +0100
From:      krichy@cflinux.hu
To:        Steven Hartland <killing@multiplay.co.uk>
Cc:        freebsd-fs@freebsd.org
Subject:   Re: zfs deadlock
Message-ID:  <26807186f152d97fe54c4f0e6f888275@cflinux.hu>
In-Reply-To: <2D9058D8E6F9483CA1A6C78A2DA6E71B@multiplay.co.uk>
References:  <alpine.BSF.2.00.1312051548410.80538@pi.nmdps.net> <2D9058D8E6F9483CA1A6C78A2DA6E71B@multiplay.co.uk>

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Dear Steven,

Thanks for your reply. Do you know how to reproduce the bug? Because 
simply sending a snapshot which is mounted does not automatically 
trigger the deadlock. Some special cases needed, or what?
How to prove that the patch fixes this?

Regards,
2013-12-05 19:39 időpontban Steven Hartland ezt írta:
> Known issue you want:
> http://svnweb.freebsd.org/changeset/base/258595
> 
>    Regards
>    Steve
> 
> ----- Original Message ----- From: "Richard Kojedzinszky" 
> <krichy@cflinux.hu>
> To: <freebsd-fs@freebsd.org>
> Sent: Thursday, December 05, 2013 2:56 PM
> Subject: zfs deadlock
> 
> 
>> Dear fs devs,
>> 
>> We have a freenas server, which is basicaly a freebsd. I was trying to 
>> look at snapshots using ls .zfs/snapshot/.
>> 
>> When I issued it, the system entered a deadlock. An NFSD was running, 
>> a zfs send was running when I issued the command.
>> 
>> I attached to command outputs while the system was in a deadlock 
>> state. I tried to issue
>> # reboot -q
>> But that did not restart the system. After a while (5-10 minutes) the 
>> system rebooted, I dont know if the deadman caused that.
>> 
>> Now the system is up and running.
>> 
>> It is basically a freebsd 9.2 kernel.
>> 
>> Do someone has a clue?
>> 
>> Kojedzinszky Richard
> 
> 
> --------------------------------------------------------------------------------
> 
> 
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> 
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