Lockups during hammer cleanup

Tim Darby t+dfbsd at timdarby.net
Sat Jul 23 07:27:52 PDT 2016


I'm still seeing lock ups on reblock and recopy after last night's changes.

Tim

On Fri, Jul 22, 2016 at 12:22 PM, Matthew Dillon <dillon at backplane.com>
wrote:

> I've been able to reproduce the buildworld lockup, this is probably the
> same thing.  I hope to track it down today.
>
> -Matt
>
> On Fri, Jul 22, 2016 at 11:53 AM, Tim Darby <t+dfbsd at timdarby.net> wrote:
>
>> I'm seeing this on two different machines for the same hammer filesystem
>> (one machine is the master, the other is the slave for that fs):
>>
>> hammer -v cleanup /volumes/BACKUP2/pfs/media
>> cleanup /volumes/BACKUP2/pfs/media - handle PFS #1 using
>> /var/hammer/volumes/BACKUP2/pfs/media
>>            snapshots - skip
>>                prune - skip
>>            rebalance - skip
>>              reblock - run
>>     hammer -c /var/hammer/volumes/BACKUP2/pfs/media/.reblock-1.cycle -t
>> 300 reblock-btree /volumes/BACKUP2/pfs/media
>>
>> <machine locks up here, nothing on the console>
>>
>> I was able to get it to complete eventually by reducing the time for
>> reblock and recopy to 30 seconds. If it goes longer than that, it locks.
>>
>> Tim
>>
>
>
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