Re: Cygwin starts take long since march. Three minutes to prompt.

[Thomas Schweikle via Cygwin]

Am Mo., 03.Apr..2023 um 17:48:03 schrieb Brian Inglis via Cygwin:

On 2023-04-03 08:59, Thomas Schweikle via Cygwin wrote:

Am Mo., 03.Apr..2023 um 16:47:42 schrieb Eliot Moss:

On 4/3/2023 10:38 AM, Thomas Schweikle via Cygwin wrote:

Cygwin shell takes about three minutes until the prompt is shown. Any idea how to find out the cause?

I think the most common thing in the past had to do with
probing remote mounts.  You could try pruning paths and
see what happens, or adjusting mount parameters.

Mounts are:
$ cat /proc/mounts
C:/cygwin/bin /usr/bin ntfs binary,auto 1 1
C:/cygwin/lib /usr/lib ntfs binary,auto 1 1
C:/cygwin / ntfs binary,auto 1 1
C: /cygdrive/c ntfs binary,posix=0,user,noumount,auto 1 1
G: /cygdrive/g netapp binary,posix=0,user,noumount,auto 1 1
L: /cygdrive/l netapp binary,posix=0,user,noumount,auto 1 1
M: /cygdrive/m netapp binary,posix=0,user,noumount,auto 1 1
O: /cygdrive/o netapp binary,posix=0,user,noumount,auto 1 1
P: /cygdrive/p netapp binary,posix=0,user,noumount,auto 1 1
T: /cygdrive/t netapp binary,posix=0,user,noumount,auto 1 1
V: /cygdrive/v netapp binary,posix=0,user,noumount,auto 1 1
W: /cygdrive/w netapp binary,posix=0,user,noumount,auto 1 1
X: /cygdrive/x netapp binary,posix=0,user,noumount,auto 1 1
Y: /cygdrive/y netapp binary,posix=0,user,noumount,auto 1 1
Z: /cygdrive/z netapp binary,posix=0,user,noumount,auto 1 1

I've read somewhere noacl should be given for these mounts. Could not find it, even with a fresh installed cygwin on a fresh windows.

Trying to reset acls to defaults for "C:\cygwin" gives lots of "access denied" errors, even if running as "Administrator" from an elevated shell. Tried both "cmd.exe" and "powershell.exe". Both did not allow to change acls.

Seems as if "C:\cygwin" has lost ownership an some acls. Any idea to get them back in place for the whole tree?

Should not need anything special:

$ ls -dl / && getfacl / && icacls `cygpath -m /`    # sanitized:
drwxr-xr-x 1 $USER None 0 Mar 16 18:57 /

# file: /
# owner: $USER
# group: None
user::rwx
group::r-x
other::r-x
default:user::rwx
default:group::r-x
default:other::r-x

C:/.../cygwin64 $HOSTNAME/$USER:(F)
                 $HOSTNAME/None:(RX)
                 Everyone:(RX)
                 CREATOR OWNER:(OI)(CI)(IO)(F)
                 CREATOR GROUP:(OI)(CI)(IO)(RX)
                 Everyone:(OI)(CI)(IO)(RX)

Successfully processed 1 files; Failed processing 0 files

$ ls -dl / && getfacl / && icacls `cygpath -m /`
drwxr-xr-x 1 SYSTEM SYSTEM 0 Mar 23 13:44 /
# file: /
# owner: SYSTEM
# group: SYSTEM
user::rwx
group::r-x
other::r-x
default:user::rwx
default:group::r-x
default:other::r-x

C:/cygwin NT-AUTORITÄT\SYSTEM:(F)
          NT-AUTORITÄT\SYSTEM:(RX)
          Jeder:(RX)
          ERSTELLER-BESITZER:(OI)(CI)(IO)(F)
          ERSTELLERGRUPPE:(OI)(CI)(IO)(RX)
          Jeder:(OI)(CI)(IO)(RX)



Is this ok? Not missing "Administrator"?

1 Dateien erfolgreich verarbeitet, bei 0 Dateien ist ein Verarbeitungsfehler aufgetreten.

Those kinds of delays are often AD lookup for domain users and groups:

see /etc/nsswitch.conf for settings, and consider running cygserver at system or Cygwin startup to preload and cache the info.

$ cat /etc/nsswitch.conf
# /etc/nsswitch.conf
#
#    This file is read once by the first process in a
#    Cygwin process tree.
#    To pick up changes, restart all Cygwin processes.
#    For a description see https://cygwin.com/cygwin-ug-
#    net/ntsec.html#ntsec-mapping-nsswitch
#
# Defaults:
# passwd:   files db
# group:    files db
# db_enum:  cache builtin
# db_home:  /home/%U
# db_shell: /bin/bash
# db_gecos: <empty>

It is at defaults.
--
Thomas

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