When darcs is called from another program (In my case python) and it's
output redirected to stderr, darcs hangs on exit. So it finished all
tasks (not using CPU).
strace write:
futex(0xf27bcc, FUTEX_WAIT_PRIVATE, 43, NULL

This situation can be when darcs trying to close stderr before exit.
I'm attaching a simple python program describing this situation. 
3/4 test are passing (writing to stdout and hacking running cmd), but
last fails.

Attachments

• 1.py

Hi,

On Sun, Oct 31, 2010 at 23:11:39 +0000, qnikst wrote:
> When darcs is called from another program (In my case python) and it's
> output redirected to stderr, darcs hangs on exit. So it finished all
> tasks (not using CPU).
> strace write:
> futex(0xf27bcc, FUTEX_WAIT_PRIVATE, 43, NULL

Thanks for bug report and (especially!) the minimal test case helping
us to reproduce it.

Unfortunately, this works for me on my Linux box (4 passes).

I got a copy of XMonadContrib and ran your script.

Do you have hints about your setup that would account for this
difference?

-- 
Eric Kow <http://www.nltg.brighton.ac.uk/home/Eric.Kow>
For a faster response, try +44 (0)1273 64 2905 or
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On Mon, Nov 22, 2010 at 09:45:10 +0000, Eric Kow wrote:
> I got a copy of XMonadContrib and ran your script.
> 
> Do you have hints about your setup that would account for this
> difference?

I tried this with darcs 2.4.3, darcs 2.5.0 and HEAD for what it's worth.

-- 
Eric Kow <http://www.nltg.brighton.ac.uk/home/Eric.Kow>
For a faster response, try +44 (0)1273 64 2905 or
xmpp:kowey@jabber.fr (Jabber or Google Talk only)