sshd crashing server

[Will Prater]

Subhro,

On Jan 3, 2004, at 10:54 PM, Subhro wrote:

> Hey Will,
> Do you remember if you added anything nonstandard to CFLAGS in
> /etc/make.conf?

I dont thin I have added anything to /etc/make.conf. I can confirm once 
the system is up again. SSHD did not start up at boot after the crash 
so I am trying to have someone in the colo start it manually, hoping 
that will get me in!!

>  Something like -funroll-loops or some non standard
> optimizations? Also what is the securelevel you are running the system 
> at?

I am not sure, probably 0.

> Did u specifically mention to OVERWRITE the base system and did u add 
> the
> line sshd_script="/usr/local/sbin/sshd" in /etc/rc.conf?

Yes, those are done. That is why I wonder why no sshd started at 
bootup. I sure hope the team over at the colo can get sshd running.

> IF u did all of
> these then I would recommend add NO_OPENSSH="YES" to /etc/make.conf and
> rebuild the world. Also go through a CVSup before the rebuild. Also if
> possible paste the last 25 lines of /var/log/messages. As far as I can 
> make
> out without the logs, somehow the sshd code has got to become 
> incompatible
> with the rest of the source tree.

OK. Let me get the machine up and I would gladly send you some of the 
messages.

Thanks again!!

>
> Cheers!
> Subhro
>
> -----Original Message-----
> From: Will Prater [mailto:lists-wp at mercurycloud.net]
> Sent: Sunday, January 04, 2004 11:00 AM
> To: Subhro
> Cc: freebsd-questions at freebsd.org
> Subject: Re: sshd crashing server
>
> Subhro,
>
> I have done this and tried another command that would spew some data
> and the machine crashed again. Any more ideas why the sshd process
> would be choking and crashing the server?
>
> I cant send you an example as I am locked out. Looks like sshd is not
> starting after the new port install described below.
>
>
> Regards
>
> Will
>
> On Jan 3, 2004, at 1:09 PM, Subhro wrote:
>
>> Hey Will,
>> The original SSH shipped with the base system is actually a scaled 
>> down
>> version. Check out /usr/ports/security/openssh-portable. Compile the
>> above
>> port with option -DOPENSSH_OVERWRITE_BASE and also include
>> -DWITHOUT_KERBEROS if you do not need the Kerberos Authentication.
>> This will
>> overwrite the base SSH system with an OpenSSH version specifically
>> ported to
>> FreeBSD. Also I would like to know the contents of CFLAGS in
>> /etc/make.conf.
>> Make a note that after every "make world" you would have to clean and
>> reinstall the port with
>>
>> make install -DOPENSSH_OVERWRITE_BASE -DWITHOUT_KERBEROS
>>
>> Cheers!
>>
>> Subhro
>>
>> -----Original Message-----
>> From: owner-freebsd-questions at freebsd.org
>> [mailto:owner-freebsd-questions at freebsd.org] On Behalf Of Will Prater
>> Sent: Sunday, January 04, 2004 2:20 AM
>> To: questions at freebsd.org
>> Subject: Re: sshd crashing server
>>
>>
>> On Jan 2, 2004, at 3:36 PM, Lowell Gilbert wrote:
>>
>>> Will Prater <lists-wp at mercurycloud.net> writes:
>>>
>>>> List,
>>>>
>>>> sshd seems to be crashing my server. I am looking for any help
>>>> regarding why this could be happening. I am running sshd version
>>>> OpenSSH_3.6.1. Here is the output from dmesg:
>>>>
>>>> the machine crashed every time when running
>>>>
>>>> #ipfw show
>>>> or
>>>> #dmesg -a
>>>>
>>>> for example and will crash when part way through the listing. Any
>>>> ideas??
>>>>
>>>> ----
>>>> Fatal trap 12: page fault while in kernel mode
>>>> fault virtual address   = 0x0
>>>> fault code              = supervisor read, page not present
>>>> instruction pointer     = 0x8:0xc023c52a
>>>> stack pointer           = 0x10:0xd9ff6bbc
>>>> frame pointer           = 0x10:0xd9ff6be4
>>>> code segment            = base 0x0, limit 0xfffff, type 0x1b
>>>>                          = DPL 0, pres 1, def32 1, gran 1
>>>> processor eflags        = interrupt enabled, resume, IOPL = 0
>>>> current process         = 394 (sshd)
>>>> interrupt mask          = net tty
>>>> trap number             = 12
>>>> panic: page fault
>>>
>>> 1) What version of FreeBSD?
>>
>> 4.9 RELEASE
>>
>>> 2) How did you install that version of OpenSSH?
>>
>> I have tried the one from the ports and the pre-installed version.
>>
>>
>> Thanks
>>
>>
>> --will
>>
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>>
>>
>>
>>
>>
> --will
>
>
>
>
>
>
>
--will