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Date: Sun, 28 Aug 2005 14:41:45 +0300
From: Pavel Tsekov <ptsekov AT gmx DOT net>
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To: cygwin AT cygwin DOT com
Subject: Re: zsh: command not found => hangs
In-Reply-To: <Pine.CYG.4.58.0508281417030.624@mordor>
Message-ID: <Pine.CYG.4.58.0508281435100.1892@mordor>
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Hello,

On Sun, 28 Aug 2005, Pavel Tsekov wrote:

> First I determined (by using strace) the place in zsh where the hang
> occurs to be in or after zhandler() when it processes SIGCLD. Then I
> built debugging zsh and after debugging for a while it turned out that
> the hang occures after leaving the signal handler.

Some things I forget to mention. zsh is supposed to be sigsuspend-ed at
the time the signal handler is executed - this maybe obvious from the
backtrace but in any case I mention it. The second thing is that I was
able to reproduce this when connected via ssh to the Cygwin machine or
when I run zsh in rxvt window but not when in Cygwin console. Maybe pty
slows things a bit and that's why the "race" surfaces in these cases.


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