FreeBSD 8.2 Release, ZFS + Samba, running out of memory

Henner Heck Henner.Heck at
Tue Feb 22 23:13:52 UTC 2011

I only connect to the BSD system via ssh at the moment, there is no
keyboard attached.
The ssh shell running "top" doesn't update anymore and doesn't take any
A new ssh session is not possible.
Pressing the power button once does not shut down the machine,
i have to keep it pressed for several seconds to power down hard.

I will try out disabling "sendfile" and, if i can manage, also try out
the patch.
This would be my first kernel patch and compilation, so it might take a
to learn. :)

Would i run the risk of loosing the patch when running "freebsd-update"?
Will the patch be provided by "freebsd-update" at some point?

Thank you all for your advice,
Henner Heck

Am 22.02.2011 23:43, schrieb Jeremy Chadwick:
>> *smb.conf* (a bit anonymized)
>> [global]
>> use sendfile = true
> Set this to "false" and the problem might go away.  You can try some of
> the patches others have recommended as well (which will permit you to
> use sendfile going forward), but if you don't want to deal with patches,
> the workaround should be fine.
> If you still experience issues after that, possibly some loader.conf
> tuning for ZFS is needed.
> Also, one question: when you say "freezes", do you mean "completely
> locks up hard" or "the system seems alive but seems to be spending all
> of its CPU time doing something else"?  Try hitting NumLock on the
> system's keyboard to see if the LED toggles on/off; if it does, the
> system isn't frozen, but is catatonic to some degree.

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