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	Fri, 16 Jan 2026 02:26:03 -0800 (PST)
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Date:	Fri, 16 Jan 2026 11:26:02 +0100
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Subject:	Re: cygwin 3.6.6-1
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From:	Marco Atzeri via Cygwin <cygwin AT cygwin DOT com>
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On 15/01/2026 20:23, Corinna Vinschen via Cygwin wrote:
> On Jan 15 20:14, Takashi Yano via Cygwin wrote:
>> Hi Corinna,
>>
>> I also could reproduce the issue.
>> [...]
>> Local. In the mintty terminal opened after
>> cygserver is started. In the mintty terminal opened
>> after cygserver is stopped, the gid is as expected.
>>
>> The terminal already opened at the time cygserver is
>> started/stopped is not affected.
>> [...]
>>> If you stop all Cygwin processes and restart cygserver, is the primary
>>> group still as expected?
>>
>> No.
> 
> So running cygserver suppresses changing the primary group?  That's
> weird, because the effect seems so arbitrary.

Correct.


If I run Mintty before Cygserver the gid=545(Users) is coming from 
/etc/passwd.
After I run the Cygserver any subsequent process started
from "Start Menu" had the Group gid=197121(NESSUNO)
while any spin off of the first Mintty using ALT+F2 has the
proprer gid=545(Users)

So It seems Cygserver run as service is following a different route
than a normal Mintty run.

> Did you try to debug that?
> 
> 
> Corinna




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