system lags and dysfunctional after cygwin update

[Ben Altman <benalt at gmail dot com>]

I have been ksh scripting using cygwin for many years over multiple 
Windows versions (currently 7 and 10) without any issues. I have been 
using the same version of ksh for a while and in an attempt to compile a 
more recent version did an update of cygwin whilst I was getting bison 
which has had some severe side effects on my system. This started about 
a month ago and I haven't been able to work out a solution by googling 
or messing around with the installation. It doesn't happen right away 
but is triggered at some point in a script. One result is that 
everything takes many times longer to complete. E.g. "ls" goes from 
under a second to give a listing to 20 or more seconds. One of my 
scripts that I run daily to produce reports which would take 6 minutes 
can take up to 3 hours to complete. Another thing that happens is that 
Internet Explorer stops working - it loads unresponsive and then 
crashes. Chrome loads but won't reach any website. Firefox works but 
will become unresponsive frequently. Rebooting fixes the issue until I 
do something in one of my scripts that triggers it again.

During the update that triggered this, it got stuck in the final part 
dealing with the 0p_000_autorebase.dash script. I eventually went in to 
run it manually (line by line at the command prompt). It succeeded in 
running but did not help unfortunately. I eventually tried removing 
cygwin from my system and installing it again but it did not help. I 
have started moving towards manually pasting things into the command 
line rather than work through scripts as they are more likely to trigger 
the situation. This usually does the trick to cause the issue (this is a 
part of my script for generating a bunch of reports):

for client in $clientlist; do
        if [[ -s $client.ldap && -n $(awk '{ if (tolower($1) == 
"username") print "OK"; exit }' $client.rts) ]]; then
            join -i -j1 -v1 <(awk 'NR > 2 {if ($1=="") exit; print}' 
${client}.rts | LANG=en_EN sort -uf) \
                <(awk -F'","|"$' '$0 ~ /aaaUUID=/ {print $2}' 
${client}.ldap | LANG=en_EN sort -uf) > ${client}.txt &
        fi
done

I noticed when I ran 0p_000_autorebase.dash manually one time that it 
took a long time to complete. I could see it running slowly as it logged 
what it was doing on the screen and I let it run all day. When I came in 
the next day it was either still going or had frozen - I didn't wait to 
find out and stopped it and rebooted my system. At some point I 
installed babun which didn't help though at some point mutt stopped 
being able to send mail in cygwin but continued to work through babun 
(/usr/sbin/sendmail would give a memory fault but not in the babun 
installation).

I ran "cygcheck -s -v -r" and have attached the results (I replaced my 
organization's name with aaa and similar though it probably wasn't 
necessary). If anyone could offer some advise or help me out it would be 
greatly appreciated.

Thanks,
Ben

Attachment: cygcheck.out
Description: Text document

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