[Samba] vfs_fruit and memory usage

[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.

Cheerio!
-slow