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Date:	Thu, 25 Aug 2005 16:57:46 -0700 (PDT)
From:	"Peter A. Castro" <doctor AT fruitbat DOT org>
To:	Samuel Thibault <samuel DOT thibault AT ens-lyon DOT org>
cc:	cygwin AT cygwin DOT com
Subject:	Re: zsh: command not found => hangs
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On Fri, 26 Aug 2005, Samuel Thibault wrote:

> Hi,
>
> Peter A. Castro, le Thu 25 Aug 2005 14:18:53 -0700, a =E9crit :
>> On Thu, 25 Aug 2005, Samuel Thibault wrote:
>>> Note that I replaced cygwin1.dll by the latest snapshot (2005/08/24).
>>> The current release version (2005/07/03) does work fine. I tried with
>>> previous snapshots, even 2005/07/05 fails...
>>
>> Wait, so the released version works, but the snapshot doesn't?
>
> Precisely.

Hmm... Okaaaaay (I wonder what cgf has done to the code *this* time :)

>> Do you have any network drives in your $PATH?
>
> None.
>
>> Hmmm... Well, I guess the only thing to do is run strace, make it fail
>> and send us the trace.
>
> It is available on
> http://dept-info.labri.fr/~thibault/zsh_strace
>
> See line 4808 in particular. zsh lays remains hung with the last line.

From the trace, wait4() is returning an errno =3D 10 (ECHILD) stating that
there's no child to wait for...

Earlier in the trace it looks like a possible race between the main and
a signal handler.  I'll look into zsh code to see what it does for this
type of wait4() return, but I'm thinking it's a race condition within the
cygwin code.

>> I'll just add that you should make sure you stop and restart any
>> cygwin services too.
>
> There was none, so ok :)
>
> Regards,
> Samuel
>
> --
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--=20
Peter A. Castro <doctor AT fruitbat DOT org> or <Peter DOT Castro AT oracle DOT com>
 	"Cats are just autistic Dogs" -- Dr. Tony Attwood

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