sshd with zombie process on FreeBSD 10.0-STABLE

[Alexander Yerenkow]

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 :)


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
>
>
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-- 
Regards,
Alexander Yerenkow