Hello, We are experiencing some issues with the Cygwin commands (ie. from bash -login) taking several minutes on three of our Windows 2016 servers. ls -al -- 1min 32sec find -- 4min 46sec When you search for a specific file, such as ls -al ./ABC/XYZ.txt, it is very quick. We ran strace on the machines where it is quick and where it slow. Here is some annotation for not working and working excerpted from the files: *=====> Not working Scenario* Command run: strace -m all -o does-not-work.txt find . -name VNM.OUT ===> Initially it hangs here for 15-25 seconds: samlib.dll 214 995796 [main] find 7768 symlink_info::check: 0 = symlink.check(D:\Abc\Xyz\conf.txt, 0x64B818) (0x404022) --- Process 7768 loaded C:\Windows\SysWOW64\samcli.dll at 73080000 --- Process 7768 loaded C:\Windows\SysWOW64\samlib.dll at 72c90000 5435 423059 [main] find 7768 pwdgrp::fetch_account_from_windows: line: ===> Then the rest of the almost 4 minutes, it hangs at FWPUCLNT.DLL 214 995796 [main] find 7768 symlink_info::check: 0 = symlink.check(D:\Abc\Xyz\conf.txt, 0x64B818) (0x404022) --- Process 7768 loaded C:\Windows\SysWOW64\FWPUCLNT.DLL at 73950000 --- Process 7768 thread 4596 exited with status 0x0 --- Process 7768 thread 6568 exited with status 0x0 --- Process 7768 thread 7040 exited with status 0x0 82877524 83873956 [main] find 7768 pwdgrp::fetch_account_from_windows: line: ===> You see the process threads created, and created again, then they close after FWPUCLNT.DLL unfreezes (see above) drwx------ 1 CKimball UsersGrp 0 Jul 28 23:13 .. 303 995341 [main] find 7768 symlink_info::check: 0x0 = NtCreateFile (\??\D:\Abc\Xyz\conf.txt) 241 995582 [main] find 7768 symlink_info::check: not a symlink 214 995796 [main] find 7768 symlink_info::check: 0 = symlink.check(D:\Abc\Xyz\conf.txt, 0x64B818) (0x404022) --- Process 7768 loaded C:\Windows\SysWOW64\FWPUCLNT.DLL at 73950000 --- Process 7768 thread 4596 created --- Process 7768 thread 6568 created --- Process 7768 loaded D:\Cygwin\bin\cygintl-8.dll at 645e0000 --- Process 7768 loaded D:\Cygwin\bin\cygwin1.dll at 61000000 --- Process 7768 loaded D:\Cygwin\bin\cygiconv-2.dll at 6f150000 6 6 [main] find (7768) ********************************************** 505 511 [main] find (7768) Program name: D:\Cygwin\bin\find.exe (windows pid 7768) 203 714 [main] find (7768) OS version: Windows NT-10.0 183 897 [main] find (7768) ********************************************** --- Process 7768 loaded C:\Windows\SysWOW64\advapi32.dll at 754e0000 --- Process 7768 loaded C:\Windows\SysWOW64\msvcrt.dll at 753d0000 --- Process 7768 loaded C:\Windows\SysWOW64\sechost.dll at 75490000 212 996008 [main] find 7768 path_conv::check: this->path(D:\Abc\Xyz\conf.txt), has_acls(1) --- Process 7768 thread 7040 created --- Process 7768 thread 4596 created --- Process 7768 loaded D:\Cygwin\bin\cyggcc_s-1.dll at 6c100000 --- Process 7768 thread 6568 created --- Process 7768 loaded D:\Cygwin\bin\cygintl-8.dll at 645e0000 --- Process 7768 loaded D:\Cygwin\bin\cygwin1.dll at 61000000 --- Process 7768 loaded D:\Cygwin\bin\cygiconv-2.dll at 6f150000 6 6 [main] find (7768) ********************************************** 505 511 [main] find (7768) Program name: D:\Cygwin\bin\find.exe (windows pid 7768) 203 714 [main] find (7768) OS version: Windows NT-10.0 183 897 [main] find (7768) ********************************************** --- Process 7768 loaded C:\Windows\SysWOW64\advapi32.dll at 754e0000 *=====> Working Scenario* ===> Runs straight through to completion, no pauses/freezes 215 696807 [main] find 9456 build_fh_pc: fh 0x612AFFD0, dev 000000C3 235 697042 [main] find 9456 stat_worker: (\??\F:\Abc\Xyz\conf.txt, 0x200749F8, 0x612AFFD0), file_attributes 16 --- Process 9456 loaded C:\Windows\SysWOW64\rasadhlp.dll at 73190000 --- Process 9456 loaded C:\Windows\SysWOW64\FWPUCLNT.DLL at 72fa0000 161759 858801 [main] find 9456 pwdgrp::fetch_account_from_windows: line: <_svcCASpecLAN:*:1319973:1049089:U-TSYS\_svcCASpecLAN,S-1-5-21-21232 42984-354184167-320618023-271397:/home/_svcCASpecLAN:/bin/bash> 1034 859835 [main] find 9456 fhandler_base::fstat_helper: 0 = fstat (\??\F:\Abc\Xyz\conf.txt, 0x200749F8) st_size=0, st_mod e=040775, st_ino=1688849860295204st_atim=5F210CE0.25975E6C st_ctim=5F210CE0.25975E6C st_mtim=5F210CE0.25975E6C st_birthtim=5F210CE0.16B102A4 195 860030 [main] find 9456 stat_worker: 0 = (\??\F:\Abc\Xyz\conf.txt,0x200749F8) All our other Windows 2016 servers do not experience any issues. Do you have any suggestions on finding out what is causing this? Regards, Praveen