samba_spnupdate invoked oom-killer ( samba BUG )
Richard Sharpe
realrichardsharpe at gmail.com
Tue Sep 30 12:46:24 MDT 2014
On Tue, Sep 30, 2014 at 10:24 AM, Chan Min Wai <dcmwai at gmail.com> wrote:
> Hi Richard,
>
> I think smbcontrol didn't work on samba daemon (the AD DC daemon)
Ahhh, this is an AD DC problem. My experience is only with the file
server side of the code. I think you need other people to check in
here to figure this out.
I seems like there is a leak. I would increase the log level to see if
I can see anything that is happening over and over again ...
> I can see the smbd info but it wasn't what I'm looking for as it have a
> different PID and the memory look fine.
>
> It seem that something lockup, odd enough...
>
>
> root 3408 0.0 0.5 548476 46596 ? Ss Sep29 0:00
> /usr/sbin/samba
> root 3412 0.0 0.4 548476 33168 ? S Sep29 0:00
> /usr/sbin/samba
> root 3413 0.8 0.4 553048 39368 ? S Sep29 22:49
> /usr/sbin/samba
> root 3414 0.0 0.7 489980 59824 ? Ss Sep29 0:15
> /usr/sbin/smbd -D --option=server role check:inhibit=yes --foreground
> root 3415 0.0 0.4 552608 35860 ? S Sep29 0:02
> /usr/sbin/samba
> root 3416 0.0 0.4 548476 33044 ? S Sep29 0:00
> /usr/sbin/samba
> root 3417 0.0 0.5 548876 41636 ? S Sep29 0:39
> /usr/sbin/samba
> root 3418 0.0 0.4 548456 34880 ? S Sep29 0:04
> /usr/sbin/samba
> root 3419 0.0 0.4 552628 38192 ? S Sep29 0:07
> /usr/sbin/samba
> root 3420 3.9 19.2 2101544 1576456 ? S Sep29 108:51
> /usr/sbin/samba
> root 3421 0.0 0.4 551856 35532 ? S Sep29 0:51
> /usr/sbin/samba
> root 3422 0.0 0.4 548476 33224 ? S Sep29 0:00
> /usr/sbin/samba
> root 3423 0.0 0.5 552608 47292 ? S Sep29 0:53
> /usr/sbin/samba
>
>
> Let me restart the process again and together monitor the samba log to see
> if I've missed anything again :)
>
> Will be back :)
>
>
> On Tue, Sep 30, 2014 at 9:35 AM, Richard Sharpe
> <realrichardsharpe at gmail.com> wrote:
>>
>> On Mon, Sep 29, 2014 at 6:23 PM, Chan Min Wai <dcmwai at gmail.com> wrote:
>> > Memory usage after upgrade to 4.1.12 since yesterday.
>> >
>> > free -h
>> > total used free shared buffers
>> > cached
>> > Mem: 7.8G 3.0G 4.8G 1.2M 352M
>> > 1.1G
>> > -/+ buffers/cache: 1.6G 6.2G
>> > Swap: 1.9G 0B 1.9G
>> >
>> >
>> > root 3408 0.0 0.5 548476 46596 ? Ss Sep29 0:00
>> > /usr/sbin/samba
>> > root 3412 0.0 0.4 548476 33168 ? S Sep29 0:00
>> > /usr/sbin/samba
>> > root 3413 0.7 0.4 553048 39160 ? S Sep29 13:28
>> > /usr/sbin/samba
>> > root 3414 0.0 0.5 474940 47340 ? Ss Sep29 0:09
>> > /usr/sbin/smbd -D --option=server role check:inhibit=yes --foreground
>> > root 3415 0.0 0.4 552628 35856 ? S Sep29 0:01
>> > /usr/sbin/samba
>> > root 3416 0.0 0.4 548476 33044 ? S Sep29 0:00
>> > /usr/sbin/samba
>> > root 3417 0.0 0.5 548876 41552 ? S Sep29 0:32
>> > /usr/sbin/samba
>> > root 3418 0.0 0.4 548456 34880 ? S Sep29 0:02
>> > /usr/sbin/samba
>> > root 3419 0.0 0.4 552628 38192 ? S Sep29 0:04
>> > /usr/sbin/samba
>> > root 3420 2.9 12.8 1574492 1049440 ? S Sep29 55:11
>> > /usr/sbin/samba <--- eating memory...
>>
>> I don't think this is a tdb issue.
>>
>> Perhaps there is a talloc problem.
>>
>> You should be able to use smbcontrol <PID> pool-usage (or something
>> like that) to get the smbd that is consuming memory to dump its talloc
>> usage.
>>
>> Also, there might be something in the log file for that smbd that
>> shows you why it is consuming lots of memory.
>>
>> --
>> Regards,
>> Richard Sharpe
>> (何以解憂?唯有杜康。--曹操)
>
>
--
Regards,
Richard Sharpe
(何以解憂?唯有杜康。--曹操)
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