zfs deadlock

[krichy at cflinux.hu]

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 at cflinux.hu>
> To: <freebsd-fs at 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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