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From: Michal Mertl <mime@traveller.cz>
To: "Andrey V. Elsukov" <bu7cher@yandex.ru>
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Date: Tue, 24 Oct 2006 01:02:08 +0200
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Cc: freebsd-current <freebsd-current@freebsd.org>, kib@freebsd.org
Subject: Re: unkillable mount_smbfs processes
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Andrey V. Elsukov wrote:
> Hi,
> 
> My system is CURRENT (~15.10.2006).
> When I try mounting a smbfs from windows server then
> mount_smbfs command is don't finished. And i can't
> interrupt or kill these processes.
> 
> ps, top and trace output from ddb attached.

> last pid:  2146;  load averages:  0.00,  0.00,  0.00    up 0+05:28:50  13:07:20
> 32 processes:  1 running, 31 sleeping
> CPU states:     % user,     % nice,     % system,     % interrupt,     % idle
> Mem: 25M Active, 269M Inact, 73M Wired, 23M Cache, 53M Buf, 36M Free
> Swap: 1024M Total, 16K Used, 1024M Free
>  
>   PID USERNAME    THR PRI NICE   SIZE    RES STATE    TIME   WCPU COMMAND
>   859 root          1  -8    0  6120K  1528K devdrn   0:00  0.00% mount_smbfs
>   946 root          1  -8    0  6120K  1000K devdrn   0:00  0.00% mount_smbfs
> 


Probably unrelated...

Do you run with the alternative pseudo-terminal implementation
(kern.pts.enable=1)?

A situation like this - something stuck in devdrn, has been reported
before. The problem reported was with portupgrade and xterm
(gnome-terminal) being stuck (on exit?). I had the problem too until I
switched back to the default ptys.

CCing: kib@ who I believe has been around the changes before the first
report.

Michal