sshd with zombie process on FreeBSD 10.0-STABLE

[Marcelo Gondim]

Em 11/03/14 05:45, Alexander Yerenkow escreveu:
> Could you try to change shell to simple "sh" and see if this helps?
> This could be due to non-atomic work with history file when multiple
> clients log off, causing csh produce large broken history files.
> This is not 100% your case, but you could at least try :)
Hi Alexander,

I can try but it always used bash on that server and it just started to 
happen after I migrated from FreeBSD 9.x to 10.x
I'll put the sh and see what happens. :D

Thanks and best regards.
>
>
> 2014-03-08 3:03 GMT+02:00 Marcelo Gondim <gondim at bsdinfo.com.br>:
>
>> Em 20/02/14 17:53, Andrey V. Elsukov escreveu:
>>
>>   On 17.02.2014 06:01, Marcelo Gondim wrote:
>>>> Hi all,
>>>>
>>>> I have noticed zombie processes on the system after a few lost
>>>> connections on ssh.
>>>>
>>>> # ps afx
>>>> [...]
>>>>    8045  -  Is       0:00.01 sshd: unknown [priv] (sshd)
>>>>    8046  -  Z        0:00.01 <defunct>
>>>>    8054  -  IW       0:00.00 sshd: unknown [pam] (sshd)
>>>> 28146  -  Is       0:00.01 sshd: unknown [priv] (sshd)
>>>> 28147  -  Z        0:00.01 <defunct>
>>>> 28155  -  IW       0:00.00 sshd: unknown [pam] (sshd)
>>>> 43320  -  Is       0:00.01 sshd: unknown [priv] (sshd)
>>>> 43321  -  Z        0:00.01 <defunct>
>>>> 43322  -  IW       0:00.00 sshd: unknown [pam] (sshd)
>>>> 73413  -  Is       0:00.01 sshd: unknown [priv] (sshd)
>>>> 73414  -  Z        0:00.01 <defunct>
>>>> 73430  -  IW       0:00.00 sshd: unknown [pam] (sshd)
>>>> [...]
>>>>
>>>> Processes do not die with kill-9.
>>>> Anyone else noticed this?
>>>>
>>> Hi,
>>>
>>> I use autossh and usually my system has several tens of sshd's zombies
>>> after few days uptime.
>>>
>>> 11.0-CURRENT #6 r262183
>>>
>>>   New system update and the problem with zombie sshd processes continue.
>> I noticed that this happens more often when the system has many remote
>> access via ssh. This problem has been happening to me since the FreeBSD
>> 10.0R.
>>
>> # uname -a
>> FreeBSD bart.xxxxx.com.br 10.0-STABLE FreeBSD 10.0-STABLE #5 r262657: Tue
>> Mar  4 14:53:08 BRT 2014 root at bart.xxxxx.com.br:/usr/obj/usr/src/sys/GONDIM10
>>   amd64
>>
>> Thanks and best regards,
>>
>> Gondim