Re: EXTERNAL: Re: sshd high cpu load

[Wells, Roger K. via Cygwin]

On 5/20/21 4:35 PM, Andrey Repin wrote:
> CAUTION: This email originated from outside of Leidos. Be cautious when 
> clicking or opening content.
>
> Greetings, Wells, Roger K.!
>
>>> On 5/19/2021 12:48 AM, A. Doggy wrote:

 I am running cygwin openssh as a windows service. I have been doing
 so for many years with out issue. Recently, I have been running into
 an issue where it maxes out my cpu on any version newer than 8.4p1-1.
 The solution is to downgrade to 8.4p1-1. My server machine is a dell
 t330 running windows 10. I am not a business despite using business
 grade hardware.I have tried both 20h2 and 21h1 but no luck. There are
 no users signed in when the issues occur and occurs within minutes of
 booting up. The only change from the default config is I have it
 running on a nonstandard port. Any advice is welcome as I really
 would like to upgrade to a newer version. Thanks
>> I noticed your initial contact and tried to duplicate what you observed
>> to no avail.
> https://cygwin.com/pipermail/cygwin/2021-April/248299.html
>
>> I set up cygwin openssh as a windows service as you described and also
>> have been doing it this way for many years.
>> sshd.exe doesn't show any cpu load on task manager even after days (yes
>> it still works when I log in from another machine)
>> My system is a Lenovo Thinkpad-x240 running updated W10. Cygwin is at
>> 3.2.0(0.340/5/3)
>> and ssh is at OpenSSH_8.5p1, OpenSSL 1.1.1f  31 Mar 2020.
>> Let me know if you would like me to try something else.
> Connect from remote machine to the usual shell prompt and force kill remote
> ssh process.
> The hung SSH session will cause full core CPU load.
will do & report back
>
>
> --
> With best regards,
> Andrey Repin
> Thursday, May 20, 2021 23:31:39
>
> Sorry for my terrible english...
>

-- 
Roger Wells, P.E.
leidos
221 Third St
Newport, RI 02840
401-847-4210 (voice)
401-849-1585 (fax)
roger.k.we...@leidos.com


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Re: EXTERNAL: Re: sshd high cpu load

[Wells, Roger K. via Cygwin]

On 5/20/21 12:02 PM, A. Doggy via Cygwin wrote:
> Anyone?

Sorry,
I noticed your initial contact and tried to duplicate what you observed
to no avail.
I set up cygwin openssh as a windows service as you described and also
have been doing it this way for many years.
sshd.exe doesn't show any cpu load on task manager even after days (yes
it still works when I log in from another machine)
My system is a Lenovo Thinkpad-x240 running updated W10. Cygwin is at
3.2.0(0.340/5/3)
and ssh is at OpenSSH_8.5p1, OpenSSL 1.1.1f  31 Mar 2020.
Let me know if you would like me to try something else.

>
> On 5/19/2021 12:48 AM, A. Doggy wrote:
>> To Cygwin,
>>
>>
>> I am running cygwin openssh as a windows service. I have been doing
>> so for many years with out issue. Recently, I have been running into
>> an issue where it maxes out my cpu on any version newer than 8.4p1-1.
>> The solution is to downgrade to 8.4p1-1. My server machine is a dell
>> t330 running windows 10. I am not a business despite using business
>> grade hardware.I have tried both 20h2 and 21h1 but no luck. There are
>> no users signed in when the issues occur and occurs within minutes of
>> booting up. The only change from the default config is I have it
>> running on a nonstandard port. Any advice is welcome as I really
>> would like to upgrade to a newer version. Thanks
>>
>

-- 
Roger Wells, P.E.
leidos
221 Third St
Newport, RI 02840
401-847-4210 (voice)
401-849-1585 (fax)
roger.k.we...@leidos.com


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Re: EXTERNAL: Re: ifconfig

[Wells, Roger K. via Cygwin]

On 4/5/21 11:17 AM, Marco Atzeri via Cygwin wrote:
> On 05.04.2021 14:57, Daniel L Newhouse via Cygwin wrote:
>> Cygwin no longer responds to ifconfig.  What is the story?
>>
>
> I do not remember ifconfig ever been in any cygwin package.
>
nor do I
> the Windows nearest is "ipconfig"
>
>
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-- 
Roger Wells, P.E.
leidos
221 Third St
Newport, RI 02840
401-847-4210 (voice)
401-849-1585 (fax)
roger.k.we...@leidos.com

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Re: EXTERNAL: open descriptor to named pipes sometimes fail

[Wells, Roger K. via Cygwin]

On 4/7/20 11:10 AM, Kristian Ivarsson via Cygwin wrote:

Opening a (second) descriptor for (blocking) write sometimes fail

The provided test case sometimes succeed, but quite often fail with ENOENT
(in various indexes)

I haven't dug deeper to find the underlaying cause yet

Have anyone experienced this before ?

Kristian



I ran your code here. (many times)
uname -r   ->  Cygwin 3.1.4(0.340/5/3)
No problem




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--
Roger Wells, P.E.
leidos
221 Third St
Newport, RI 02840
401-847-4210 (voice)
401-849-1585 (fax)
roger.k.we...@leidos.com

--
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