public inbox for cygwin@cygwin.com
 help / color / mirror / Atom feed
From: Eric Mills <eric@osiris.com.au>
To: gnu-win32@cygnus.com
Subject: Re: bash env parse broken
Date: Mon, 08 Sep 1997 19:18:00 -0000	[thread overview]
Message-ID: <9709090132.AA10197@osiris.com.au> (raw)

B18 on NT4.0sp3 NTFS:

Thanks folks for the helpful hint re backslashes: all I can say is
"blind as a bat!" Sorry. I guess on seeing the equivalent of a 'core dump'
from cygwin32.dll I didn't look any further. There still must be a problem
that is not at all obvious with bash that caused the exception....

I would like to follow up on the second point re ^C and make. If you try the
following make file and hit ^C:

all:
	for x in *;\
	do sh -c echo;\
	done >/dev/null

then you will notice a few things:
1.  It never seems to work properly.
2.  More than 50% of the time you get fork_helper: child died message
3.  Less frequently one gets a cygwin_exception_handler message and everything
stops - some sort of deadlock situation - just keep killing bashes till
the world comes back.
4. If you run the same loop straight from bash you get an NT exception poppup
- not caught by cygwin_exception_handler! (or the child died message).

5. Lastly one notices just how SLOW this thing runs - on investigation I 
find that the power up time for bash is somewhere between 5 and 10 times longer
on NT + cygwin32 than UNIX for the identical hardware.
For us new NT users coming from the UNIX environment there should be a warning
statemant in the README file saying that shell script performance is much
less than one is accustomed to!

Would anyone care to comment on where the cycles are going?

Thanks, Eric Mills.
-
For help on using this list (especially unsubscribing), send a message to
"gnu-win32-request@cygnus.com" with one line of text: "help".

             reply	other threads:[~1997-09-08 19:18 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1997-09-08 19:18 Eric Mills [this message]
1997-09-09  0:16 ` Alex
  -- strict thread matches above, loose matches on Subject: below --
1997-09-10  1:50 Bryan T. Schmersal
1997-09-09 23:33 dahms
1997-09-09 16:24 dahms
1997-09-02 15:50 Eric Mills
1997-09-04 12:06 ` Aaron P. Siri
1997-09-04 21:18 ` Chet Ramey

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=9709090132.AA10197@osiris.com.au \
    --to=eric@osiris.com.au \
    --cc=gnu-win32@cygnus.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).