[Samba] vfs_fruit and memory usage

Reindl Harald h.reindl at thelounge.net
Wed Apr 6 14:26:20 UTC 2016

Am 06.04.2016 um 15:58 schrieb Ralph Boehme:
> On Wed, Apr 06, 2016 at 03:43:12PM +0200, Reindl Harald wrote:
>> Am 05.04.2016 um 13:22 schrieb Ralph Boehme:
>>>> Am 05.04.2016 um 13:03 schrieb Ralph Boehme:
>>>>> On Tue, Apr 05, 2016 at 12:43:37PM +0200, Reindl Harald wrote:
>>>>>> what is wasting that much RAM if vfs_fruit is enabled?
>>>>>> had 4 OOM-killers today after not face a single one in the last 7 years and
>>>>>> on a different machine i swa a smbd process eating up 6500 MB on a HP
>>>>>> Microserver with 8 GB RAM due copy a 300 GB folder with a Apple client and
>>>>>> even not release the memory after the operation was finished
>>>>>> root     24301  1.9 22.3 1323692 903600 ?      SN   12:29   0:13
>>>>>> /usr/sbin/smbd -D
>>>>>> samba-4.3.6-0.fc23.x86_64
>>>>> just got a private mail from someone else who ran into the same issue.
>>>>> Can you run smbd under valgrind with memcheck?
>>>> not that easy in production and it seems to be unpredictable to trigger
>>> it was mentioned that it is reproducible by deleting files and folders
>> for sure it's enough copy a folder with many elements, the crash below was
>> my boss trying to copy a folder with 880 files over a slow VPN tunnel which
>> produced 3 crashes so far and given that i raised the RAM of the virtual
>> machine yesterday from 4 GB to 5 GB there is no end in ressource usage until
>> it crashs
> if you can reproduce it, great! valgrind memcheck please. I'm too busy
> atm to do it myself

ask me while beeing sysadmin for 30 servers, db-admin, mail-admin, 
filserver-admin, dns-admin, software-developer and tech support for some 
hundret domains and responsible for any technical stuff down to 
storage-arrays and virtualization.....

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